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  • Oceanography  (172)
  • Chemistry
  • Sidney, British Columbia  (122)
  • Training Department, Southeast Asian Fisheries Development Center  (26)
  • Islamic Azad University, Science and Research Branch, Tehran, Marine Physics  (24)
  • 2020-2022  (172)
  • 2015-2019
  • 2021  (172)
  • 1
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    PICES Press, Vol. 21, No. 2, Summer 2013 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/11677 | 121 | 2013-10-10 18:48:08 | 11677 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-05
    Description: •The 2013 Inter-sessional Science Board Meeting: A Note from the Science Board Chairman (pp. 1-4)•ICES/PICES Workshop on Global Assessment of the Implications of Climate Change on the Spatial Distribution of Fish and Fisheries (pp. 5-8)•PICES participates in a Convention on Biological Diversity Regional Workshop (pp. 9-11)•Social and Economic Indicators for Status and Change within North Pacific Ecosystems (pp. 12-13)•The Fourth International Jellyfish Bloom Symposium (pp. 14-15)•Workshop on Radionuclide Science and Environmental Quality in the North Pacific (pp. 16-17)•PICES-MAFF Project on Marine Ecosystem Health and Human Well-Being: Indonesia Workshop (pp. 18-19)•Socioeconomic Indicators for United States Fisheries and Fishing Communities (pp. 20-23)•Harmful Algal Blooms in a Changing World (pp. 24-25, 27)•Enhancing Scientific Cooperation between PICES and NPAFC (pp. 26-27)•Workshop on Marine Biodiversity Conservation and Marine Protected Areas in the Northwest Pacific (pp. 28-29)•The State of the Western North Pacific in the Second Half of 2012 (pp. 30-31)•Stuck in Neutral in the Northeast Pacific Ocean (pp. 32-33)•The Bering Sea: Current Status and Recent Trends (pp. 34-36)•For your Bookshelf (p. 37)•Howard Freeland takes home Canadian awards (p. 38)
    Description: ISSN: 1195-2512
    Keywords: Information Management ; Oceanography ; North Pacific Ocean
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  • 2
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    PICES Press, Vol. 16, No. 1, January 2008 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/11732 | 121 | 2013-10-25 20:16:27 | 11732 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-06-25
    Description: ◾PICES Science in 2007 (pdf, 0.1 Mb)◾2007 Wooster Award (pdf, 0.1 Mb)◾FUTURE - A milestone reached but our task is not done (pdf, 〈 0.1 Mb)◾International symposium on "Reproductive and Recruitment Processes of Exploited Marine Fish Stocks" (pdf, 0.1 Mb)◾Recent results of the micronekton sampling inter-calibration experiment (pdf, 0.1 Mb)◾2007 PICES workshop on "Measuring and monitoring primary productivity in the North Pacific" (pdf, 0.1 Mb)◾2007 Harmful Algal Bloom Section annual workshop events (pdf, 0.1 Mb) ◾A global approach for recovery and sustainability of marine resources in Large Marine Ecosystems (pdf, 0.3 Mb)◾Highlights of the PICES Sixteenth Annual Meeting (pdf, 0.4 Mb)◾Ocean acidification of the North Pacific Ocean (pdf, 0.3 Mb)◾Workshop on NE Pacific Coastal Ecosystems (2008 Call for Salmon Survival Forecasts) (pdf, 0.1 Mb)◾The state of the western North Pacific in the first half of 2007 (pdf, 0.4 Mb)◾PICES Calendar (pdf, 0.4 Mb)◾The Bering Sea: Current status and recent events (pdf, 0.3 Mb)◾PICES Interns (pdf, 0.3 Mb)◾Recent trends in waters of the subarctic NE Pacific (pdf, 0.3 Mb)◾Election results at PICES (pdf, 0.2 Mb)◾A new PICES award for monitoring and data management activities (pdf, 〈 0.1 Mb)
    Description: ISSN: 1195-2512
    Keywords: Information Management ; Oceanography ; North Pacific Ocean
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  • 3
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    PICES Press, Vol. 20, No. 1, Winter 2012 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/11674 | 121 | 2013-10-10 18:18:55 | 11674 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-05
    Description: •2011 PICES Science: A Note from the Science Board Chairman (pp. 1-6)•2011 PICES Awards (pp. 7-9)•Beyond the Terrible Disaster of the Great East Japan Earthquake (pp. 10-12)•A New Era of PICES-ICES Scientific Cooperation (p. 13)•New PICES Jellyfish Working Group Formed (pp. 14-15)•PICES Working Group on North Pacific Climate Variability (pp. 16-18)•Final U.S. GLOBEC Symposium and Celebration (pp. 19-25)•2011 PICES Rapid Assessment Survey (pp. 26-29)•Introduction to Rapid Assessment Survey Methodologies for Detecting Non-indigenous Marine Species (pp. 30-31)•The 7th International Conference on Marine Bioinvasions (pp. 32-33)•NOWPAP/PICES/WESTPAC Training Course on Remote Sensing Data Analysis (pp. 34-36)•PICES-2011 Workshop on “Trends in Marine Contaminants and their Effects in a Changing Ocean” (pp. 37-39)•The State of the Western North Pacific in the First Half of 2011 (pp. 40-42)•Yeosu Symposium theme sessions (p. 42)•The Bering Sea: Current Status and Recent Events (pp. 43-44)•News of the Northeast Pacific Ocean (pp. 45-47)•Recent and Upcoming PICES Publications (p. 47)•New leadership for the PICES Fishery Science Committee (p. 48)
    Description: ISSN: 1195-2512
    Keywords: Information Management ; Oceanography ; North Pacific Ocean
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  • 4
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    PICES Press, Vol. 18, No. 2, Summer 2010 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/11671 | 121 | 2013-10-10 18:17:11 | 11671 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-05
    Description: •The 2010 Inter-sessional Science Board Meeting: A Note from the Science Board Chairman (pp. 1-3)•2010 Symposium on “Effects of Climate Change on Fish and Fisheries” (pp. 4-11)•2009 Mechanism of North Pacific Low Frequency Variability Workshop (pp. 12-14)•The Fourth China-Japan-Korea GLOBEC/IMBER Symposium (pp. 15-17, 23)•2010 Sendai Ocean Acidification Workshop (pp. 18-19, 31)•2010 Sendai Coupled Climate-to-Fish-to-Fishers Models Workshop (pp. 20-21)•2010 Sendai Salmon Workshop on Climate Change (pp. 22-23)•2010 Sendai Zooplankton Workshop (pp. 24-25, 28)•2010 Sendai Workshop on “Networking across Global Marine Hotspots” (pp. 26-28)•The Ocean, Salmon, Ecology and Forecasting in 2010 (pp. 29, 44)•The State of the Northeast Pacific during the Winter of 2009/2010 (pp. 30-31)•The State of the Western North Pacific in the Second Half of 2009 (pp. 32-33)•The Bering Sea: Current Status and Recent Events (pp. 34-35, 39)•PICES Seafood Safety Project: Guatemala Training Program (pp. 36-39)•The Pacific Ocean Boundary Ecosystem and Climate Study (POBEX) (pp. 40-43)•PICES Calendar (p. 44)
    Description: ISSN: 1195-2512
    Keywords: Information Management ; Oceanography ; North Pacific Ocean
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  • 5
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    On the use of combined compact scheme for numerical solution of the two-layer oceanic shallow water equations (2021)
    Islamic Azad University, Science and Research Branch, Tehran, Marine Physics
    In:  http://aquaticcommons.org/id/eprint/19127 | 17408 | 2016-02-06 09:55:14 | 19127 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-13
    Description: Many types of oceanic physical phenomena have a wide range in both space and time. In general, simplified models, such as shallow water model, are used to describe these oceanic motions. The shallow water equations are widely applied in various oceanic and atmospheric extents. By using the two-layer shallow water equations, the stratification effects can be considered too. In this research, the sixth-order combined compact method is investigated and numerically implemented as a high-order method to solve the two-layer shallow water equations. The second-order centered, fourth-order compact and sixth-order super compact finite difference methods are also used to spatial differencing of the equations. The first part of the present work is devoted to accuracy assessment of the sixth-order super compact finite difference method (SCFDM) and the sixth-order combined compact finite difference method (CCFDM) for spatial differencing of the linearized two-layer shallow water equations on the Arakawa's A-E and Randall's Z numerical grids. Two general discrete dispersion relations on different numerical grids, for inertia-gravity and Rossby waves, are derived. These general relations can be used for evaluation of the performance of any desired numerical scheme. For both inertia-gravity and Rossby waves, minimum error generally occurs on Z grid using either the sixth-order SCFDM or CCFDM methods. For the Randall's Z grid, the sixth-order CCFDM exhibits a substantial improvement , for the frequency of the barotropic and baroclinic modes of the linear inertia-gravity waves of the two layer shallow water model, over the sixth-order SCFDM. For the Rossby waves, the sixth-order SCFDM shows improvement, for the barotropic and baroclinic modes, over the sixth-order CCFDM method except on Arakawa's C grid.In the second part of the present work, the sixth-order CCFDM method is used to solve the one-layer and two-layer shallow water equations in their nonlinear form. In one-layer model with periodic boundaries, the performance of the methods for mass conservation is compared. The results show high accuracy of the sixth-order CCFDM method to simulate a complex flow field. Furthermore, to evaluate the performance of the method in a non-periodic domain the sixth-order CCFDM is applied to spatial differencing of vorticity-divergence-mass representation of one-layer shallow water equations to solve a wind-driven current problem with no-slip boundary conditions. The results show good agreement with published works. Finally, the performance of different schemes for spatial differencing of two-layer shallow water equations on Z grid with periodic boundaries is investigated. Results illustrate the high accuracy of combined compact method.
    Description: PhD
    Description: Advisors:Sarmad Ghader,Farhang Ahmadi Givi Counsellors:Abasali Aliakbari Bidokhti
    Keywords: Oceanography
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  • 6
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    PICES Press, Vol. 19, No. 2, Summer 2011 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/11673 | 121 | 2013-10-10 18:18:24 | 11673 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-05
    Description: •The 2011 Inter-sessional Science Board Meeting: A Note from Science Board Chairman (pp. 1-4)•Indicators for Status and Change within North Pacific Marine Ecosystems: A FUTURE Workshop (pp. 5-8)•PICES Calendar (p. 8)•2011 ESSAS Open Science Meeting (pp. 9-13)•The 5th Zooplankton Production Symposium (pp. 14-17)•Workshop on "Individual-Based Models of Zooplankton” (pp. 18-21)•New Book Release on the 100th Anniversary of the T/S Osharu Maru (p. 21)•Workshop on “Advances in Genomic and Molecular Studies of Zooplankton” (pp. 22-24)•Workshop on “Updates and Comparisons of Zooplankton Time Series” (pp. 25-27)•Workshop on “Impacts of Ocean Acidification on Zooplankton” (pp. 28-29)•Workshop on “Automated Visual Plankton Identification” (p. 30)•Professor Plum in the Dining Room with a Knife (p. 31)•PICES and ICES on the River Elbe (p. 32)•The State of the Western North Pacific in the Second Half of 2010 (pp. 33-34)•The Bering Sea: Current Status and Recent Events (pp. 35-37)•Northeast Pacific News (pp. 38-39)•PICES Advice on Marine Ecology at a Canadian Judicial Inquiry (p. 40)
    Description: ISSN: 1195-2512
    Keywords: Information Management ; Oceanography ; North Pacific Ocean
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  • 7
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    PICES Press, Vol. 19, No. 1, Winter 2011 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/11672 | 121 | 2013-10-10 18:17:51 | 11672 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-05
    Description: •2010 PICES Science: A Note from the Former Science Board Chairman (pp. 1-4)•2010 PICES Awards (pp. 5-7)•The First Year of FUTURE: A Progress Report (pp. 8-13)•New Chairmen in PICES (pp. 14-19)•Pacific Ocean Interior Carbon Data Synthesis, PACIFICA, in Progress (pp. 20-23)•2011 PICES Calendar (p. 23)•Ecosystems 2010: Global Progress on Ecosystem-based Fisheries Management (pp. 24-26)•PICES 2010 Rapid Assessment Survey (pp. 27-29)•PICES Workshop on “An Introduction to Rapid Assessment Survey Methodologies for Application in Developing Countries” (pp. 30-31)•The State of the Western North Pacific in the First Half of 2010 (pp. 32-34)•PICES Interns (p. 34)•The State of the Bering Sea in 2010 (pp. 35-37)•The State of the Northeast Pacific in 2010 (pp. 38-40)
    Description: ISSN: 1195-2512
    Keywords: Information Management ; Oceanography ; North Pacific Ocean
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  • 8
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    PICES Press, Vol. 18, No. 1, Winter 2010 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/11667 | 121 | 2013-10-10 18:16:26 | 11667 | North Pacific Marine Science Organization (PICES)
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    Publication Date: 2021-07-05
    Description: •Major Outcomes from the 2009 PICES Annual Meeting: A Note from the Chairman (pp. 1-3, 8)•PICES Science – 2009 (pp. 4-8)•2009 PICES Awards (pp. 9-10)•New Chairmen in PICES (pp. 11-15)•PICES Interns (p. 15)•The State of the Western North Pacific in the First Half of 2009 (pp. 16-17, 27)•The State of the Northeast Pacific in 2009 (pp. 18-19)•The Bering Sea: Current Status and Recent Events (pp. 20-21)•2009 PICES Summer School on “Satellite Oceanography for the Earth Environment” (pp. 22-25)•2009 International Conference on “Marine Bioinvasions” (pp. 26-27)•A New PICES Working Group Holds Workshop and Meeting in Jeju Island (pp. 28-29)•The Second Marine Ecosystem Model Inter-comparison Workshop (pp. 30-32) •ICES/PICES/UNCOVER Symposium on “Rebuilding Depleted Fish Stocks – Biology, Ecology, Social Science and Management Strategies” (pp. 33-35)•2009 North Pacific Synthesis Workshop (pp. 36-37)•2009 PICES Rapid Assessment Survey (pp. 38-40)
    Description: ISSN: 1195-2512
    Keywords: Information Management ; Oceanography ; North Pacific Ocean
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  • 9
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    PICES Press, Vol. 21, No. 1, Winter 2013 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/11676 | 121 | 2013-10-10 18:33:34 | 11676 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-05
    Description: •2012 PICES Science: A Note from the Science Board Chairman (pp. 1-6)◾2012 PICES Awards (pp. 7-9)◾GLOBEC/PICES/ICES ECOFOR Workshop (pp. 10-15)◾ICES/PICES Symposium on “Forage Fish Interactions” (pp. 16-18)◾The Yeosu Declaration, the Yeosu Declaration Forum and the Yeosu Project (pp. 19-23)◾2013 PICES Calendar (p. 23)◾Why Do We Need Human Dimensions for the FUTURE Program? (pp. 24-25)◾New PICES MAFF-Sponsored Project on “Marine Ecosystem Health and Human Well-Being” (pp. 26-28)◾The Bering Sea: Current Status and Recent Trends (pp. 29-31)◾Continuing Cool in the Northeast Pacific Ocean (pp. 32, 35)◾The State of the Western North Pacific in the First Half of 2012 (pp. 33-35)◾New Leadership in PICES (pp. 36-39)
    Description: ISSN: 1195-2512
    Keywords: Information Management ; Oceanography ; North Pacific Ocean
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  • 10
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    PICES Press, Vol. 20, No. 2, Summer 2012 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/11675 | 121 | 2013-10-10 18:15:43 | 11675 | North Pacific Marine Science Organization (PICES)
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    Publication Date: 2021-07-05
    Description: •The 2012 Inter-sessional Science Board Meeting: A Note from Science Board Chairman (pp. 1-4)◾PICES Interns (p. 4)◾2012 Inter-sessional Workshop on a Roadmap for FUTURE (pp. 5-8)◾Second Symposium on “Effects of Climate Change on the World’s Oceans” (pp. 9-13)◾2012 Yeosu Workshop on “Framework for Ocean Observing” (pp. 14-15)◾2012 Yeosu Workshop on “Climate Change Projections” (pp. 16-17)◾2012 Yeosu Workshop on “Coastal Blue Carbon” (pp. 18-20)◾Polar Comparisons: Summary of 2012 Yeosu Workshop (pp. 21-23)◾2012 Yeosu Workshop on “Climate Change and Range Shifts in the Oceans" (pp. 24-27)◾2012 Yeosu Workshop on “Beyond Dispersion” (pp. 28-30)◾2012 Yeosu Workshop on “Public Perception of Climate Change” (pp. 31, 50)◾PICES Working Group 20: Accomplishments and Legacy (pp. 32-33)◾The State of the Western North Pacific in the Second Half of 2011 (pp. 34-35)◾Another Cold Winter in the Gulf of Alaska (pp. 36-37)◾The Bering Sea: Current Status and Recent Events (pp. 38-40)◾PICES/ICES 2012 Conference for Early Career Marine Scientists (pp. 41-43)◾Completion of the PICES Seafood Safety Project – Indonesia (pp. 44-46)◾Oceanography Improves Salmon Forecasts (p. 47)◾2012 GEOHAB Open Science Meeting (p. 48-50)◾Shin-ichi Ito awarded 2011 Uda Prize (p. 50)
    Description: ISSN: 1195-2512
    Keywords: Information Management ; Oceanography ; North Pacific Ocean
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  • 11
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    PICES Press, Vol. 22, No. 1, Winter 2014 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/14343 | 121 | 2017-09-28 17:45:03 | 14343 | North Pacific Marine Science Organization (PICES)
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    Publication Date: 2021-07-10
    Description: 2013 PICES Science: A Note from the Science Board Chairman (pp. 1-5); 2013 PICES Awards (pp. 6-8); Workshop on “Comparison of Size-based and Species-based Ecosystem Models” (pp.9-11); Workshop on “Identifying Mechanisms Linking Physical Climate and Ecosystem Change” (pp. 12-14); Navigating Change: Well-being, Values and the Management of Marine Social-Ecological Systems (pp. 15-19); 8th International Conference on Marine Bioinvasions (pp. 20-21); Second Regional Climate Modeling Workshop (pp. 22-23); PICES Summer School on “Ocean Observing Systems and Ecosystem Monitoring” (pp. 24-27); NOWPAP–PICES Joint Training Course on “Remote Sensing Data Analysis” (pp. 28-29); 6th SOLAS Summer School (pp. 30-32); News of the Northeast Pacific Ocean (pp. 33-35); The Bering Sea: Current Status and Recent Trends (pp. 36-39); The State of the Western North Pacific in the First Half of 2013 (pp. 40-42); New Chairmen in PICES (pp. 43-48); News from the PICES Secretariat (pp. 49-52)
    Keywords: Conservation ; Ecology ; Environment ; Fisheries ; Oceanography ; North Pacific Ocean
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  • 12
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    On the sound waves propagation in the Persian Gulf (2021)
    Islamic Azad University, Science and Research Branch, Tehran, Marine Physics
    In:  http://aquaticcommons.org/id/eprint/20455 | 17408 | 2016-07-19 07:54:58 | 20455 | Islamic Azad University, Science and Research Branch, Tehran
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    Publication Date: 2021-07-10
    Description: In this research I focused on the propagation of acoustic rays in shallow water areas then I selected the Persian Gulf and described sound transmission in this region with emphasize on physical properties of water masses and of sediments. Finally I studied on the sound speed variations and sound attention with data collected from this area (NE of Farsi Island & 50 kilometers south of Delware). Sound speed deviation in western part of Strait of Hormuz in winter is between 20-30 m/s and it is between 5-20 m/s in the Oman Sea. Minimum sound speed deviation is at 23-24 degree north & 60-62 degree east. In spring, this deviation varies from 25-35 m/s, which is greater than in winter. In winter, at east of 56 degree east, greater speed are in shallow water coastal areas. In summer, sound speeds are greater than in spring and vary from 35 to 55 m/s at western part of Strait of Hormuz and 20 to 40 m/s in Oman Sea. Finally in autumn, sound speed deviation is 30-45 m/s west of 56 degree east and in Oman Sea is the same. The greatest attenuation rate caused by absorption in Bandar Dayer is between 17 to 27 meters depth, which is from water masses with different densities.
    Description: PhD
    Description: Advisors: Banazadeh, M.; Counsellors: Abedi, A.
    Keywords: Oceanography
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    Type: thesis
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  • 13
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    A three dimensional model of Caspian Sea circulation (2021)
    Islamic Azad University, Science and Research Branch, Tehran, Marine Physics
    In:  http://aquaticcommons.org/id/eprint/20477 | 17408 | 2016-07-03 23:59:15 | 20477 | Islamic Azad University, Science and Research Branch, Tehran
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    Publication Date: 2021-07-10
    Description: Observations of Caspian Sea during August - September 1995 are used to develop a three dimensional numerical for calculating temperature and current. This period was chosen because of extensive set of observational data including surface temperature observations. Data from the meteorological buoy network on Caspian Sea are combined with routine observation at first order synoptic station around the lake to obtain hourly values of wind stress and pressure fields. Initial temperature distribution as a function of depth and horizontal coordinates are derived from ship cruises. The model has variable grid resolution and horizontal smoothing which filters out small scale vertical motion. The hydrodynamic model of Caspian Sea has 6 vertical levels and a uniform horizontal grid size of 50 km The model is driven with surface fluxes of heat and momentum derived from observed meteorological. The model was able to reproduce all of the basic feature of the thermal structure in Caspian sea and: larger scale circulation patterns tend to be cyclone, with cyclone circulation with each sub basin. Result has agreement with observations.
    Description: PhD
    Description: Advisors: Bannazadeh, M.R.; Bidokhti, A.A.; Counsellors: Kherandish, M.
    Keywords: Engineering ; Environment ; Oceanography
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    Type: thesis
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  • 14
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    Three dimensional models of water flow in the Persian Gulf (2021)
    Islamic Azad University, Science and Research Branch, Tehran, Marine Physics
    In:  http://aquaticcommons.org/id/eprint/20486 | 17408 | 2016-08-22 08:44:59 | 20486 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-10
    Description: Persian Gulf region is globally of great importance due to its economical and political reasons. The importance lies in oil sources and sea exports. Geophysical phenomena dominated in the water circulation affected this region is called Monsoon it stretches from African coasts to the half way of Red Seal affected all coasts of Persian Gulf and goes toward east to the Indian ocean. Other essential factors in the water circulation in this region are net evaporation (several meters in per year), high density and high salinity. In this article the effects of wind stress and evaporation in the water circulation in the region will be considered and model equations for wind forces, density, pressure, gradient, and bottom friction for Persian Gulf will be discussed.
    Description: PhD
    Description: Advisors: Banazadeh, M.R.; Counsellors: Dolatshahi
    Keywords: Oceanography
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    Type: thesis
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  • 15
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    The effects of permeable bed on waves setup (2021)
    Islamic Azad University, Science and Research Branch, Tehran, Marine Physics
    In:  http://aquaticcommons.org/id/eprint/20485 | 17408 | 2016-07-07 05:37:50 | 20485 | Islamic Azad University, Science and Research Branch, Tehran
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    Publication Date: 2021-07-10
    Description: Generally the flow properties of rivers, estuaries and coastal seas are highly dependent on the bed morphology. These include mainly three flow parameters, as bed shear stress, velocity profile and turbulent fluctuations. Here we investigate the effects of permeate of the bed on these flow properties We consider the effects of suction (W0) injection (W0) on these flow properties particularly the bottom stress. Four types of bottom permeability with different size of sand have been tested. The results indicate a substantial reduction and enhancement of the bed stress under respectively injection and suction as has been observed by others on wave motion in shallow seas. We consider 5 waves to shore with this rang of wave steepness ( 0/015 〈 so 〈 0/05 ) . Cr Calculated used of mansard method (1980). We search the stream line of current in bed with a video camera and looking this. Near the surface and the deep of bed and consider V=W (in or su)/ U(ru or rd) and bottom stress for 6 period of this study with Canly and Inman studies (1994). All these results are shown by curves with the effects of permeable bed.
    Description: PhD
    Description: Advisors: Bedakhti, Ali Akbar, Pouranaraki, Hamid; Counsellors: Alramezan, B.
    Keywords: Oceanography
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  • 16
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    Interaction between wind waves and swell in the Persian Gulf (2021)
    Islamic Azad University, Science and Research Branch, Tehran, Marine Physics
    In:  http://aquaticcommons.org/id/eprint/20505 | 17408 | 2016-07-01 02:36:37 | 20505 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-10
    Description: The effect of swell on wind wave growth has been a topic of active research for many years with inconsistent results. The details are often contradictory among investigations. Further more, there remain a variety of competing theories to explain these phenomena. In this research, we consider waves and wind and temperature data in the Persian Gulf (Busher region) in years 1995, 1996 and 1999. This study provides estimations of wave conditions and the atmosphere stability that has an influence on wind wave. Results are also compared with data that have been recorded by a buoy in Caspian Sea (Neka region) during 1989. In the second part of this work we estimate non- dimensional energy and non-dimensional peak frequencies as a function of the non- dimensional fetch and Bulk Richardson numbers for the Persian Gulf (Busher region).This results also agree well with similar results for the Caspian Sea. The acquired relations can be used to compute the wind wave parameters. Also the results for the Persian Gulf show that the relationship of non-dimensional energy to as a function of wave age is independent of presence of swell. Finally the WAM model was run for the Persian Gulf during 3-8 September of 2002. The results show that swell on the Persian Gulf reduces the energy density of wind waves by up to 10%, but the growth rate at peak frequency is only reduced by up to 4%, and the spectral peak frequency is increased by only 1%.
    Description: PhD
    Description: Advisors:Shafifar, M., Bidokhti, A.A.
    Keywords: Oceanography
    Repository Name: AquaDocs
    Type: thesis
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  • 17
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    The three dimensional model with the affection of stratified density (Caspian Sea) (2021)
    Islamic Azad University, Science and Research Branch, Tehran, Marine Physics
    In:  http://aquaticcommons.org/id/eprint/20565 | 17408 | 2016-06-29 05:14:04 | 20565 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-11
    Description: The hydro dynamical actions in big Lakes directly influence dynamic, physical and chemical affairs. The circulation's models and temperature have something to do with the movements of fluids, and analysis for circulation in Caspian sea is because of the lack of observation through which the circulations and out comings are determined. Through the studies, three dimensional simulations (Large- Scale) are planned and performed, according to Smolakiewicz and Margolin works. This is a non- hydrostatic and Boussinesq approximation is used in its formulation is used in its formulation on the basis of Lipps (1990) theorem and curve lines, the fluid is constant adiabatic and stratified, and the wind power is considered zero. The profile of speed according to previous depth and before ridge can be drawn on the basis of density available between northern and southern ridges. The circulation field is drawn from 3 cm/s to 13 cm/s on the plate z= 5 cm , the vertical changes of speed on the plate is 0.02 m/s. Vertical profile , horizontal speed in previous on, and after the ridges on are drawn on different spaces. It changes from 0.5 cm/s to 1 cm/s before ridges.
    Description: PhD
    Description: Advisors: Bannazadeh, M.R.; counsellors: Bidokhti, A.A.
    Keywords: Engineering ; Oceanography
    Repository Name: AquaDocs
    Type: thesis
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  • 18
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    Wind wave prediction in the Caspian Sea (2021)
    Islamic Azad University, Science and Research Branch, Tehran, Marine Physics
    In:  http://aquaticcommons.org/id/eprint/20567 | 17408 | 2016-06-29 05:15:42 | 20567 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-11
    Description: In this thesis, wind wave prediction and analysis in the Southern Caspian Sea are surveyed. Because of very much importance and application of this matter in reducing vital and financial damages or marine activities, such as monitoring marine pollution, designing marine structure, shipping, fishing, offshore industry, tourism and etc, gave attention by some marine activities. In this study are used the Caspian Sea topography data that are extracted from the Caspian Sea Hydrography map of Iran Armed Forces Geographical Organization and the I 0 meter wind field data that are extracted from the transmitted GTS synoptic data of regional centers to Forecasting Center of Iran Meteorological Organization for wave prediction and is used the 20012 wave are recorded by the oil company's buoy that was located at distance 28 Kilometers from Neka shore for wave analysis. The results of this research are as follows: - Because of disagreement between the prediction results of SMB method in the Caspian sea and wave data of the Anzali and Neka buoys. The SMB method isn't able to Predict wave characteristics in the Southern Caspian Sea. - Because of good relativity agreement between the WAM model output in the Caspian Sea and wave data of the Anzali buoy. The WAM model is able to predict wave characteristics in the southern Caspian Sea with high relativity accuracy. The extreme wave height distribution function for fitting to the Southern Caspian Sea wave data is obtained by determining free parameters of Poisson-Gumbel function through moment method. These parameters are as below: A=2.41, B=0.33. The maximum relative error between the estimated 4-year return value of the Southern Caspian Sea significant wave height by above function with the wave data of Neka buoy is about %35. The 100-year return value of the Southern Caspian Sea significant height wave is about 4.97 meter. The maximum relative error between the estimated 4-year return value of the Southern Caspian Sea significant wave height by statistical model of peak over threshold with the wave data of Neka buoy is about %2.28. The parametric relation for fitting to the Southern Caspian Sea frequency spectra is obtained by determining free parameters of the Strekalov, Massel and Krylov etal_ multipeak spectra through mathematical method. These parameters are as below: A = 2.9 B=26.26, C=0.0016 m=0.19 and n=3.69. The maximum relative error between calculated free parameters of the Southern Caspian Sea multipeak spectrum with the proposed free parameters of double-peaked spectrum by Massel and Strekalov on the experimental data from the Caspian Sea is about 36.1 % in spectrum energetic part and is about 74M% in spectrum high frequency part. The peak over threshold waverose of the Southern Caspian Sea shows that maximum occurrence probability of wave height is relevant to waves with 2-2.5 meters wave fhe error sources in the statistical analysis are mainly due to: l) the missing wave data in 2 years duration through battery discharge of Neka buoy. 2) the deportation %15 of significant height annual mean in single year than long period average value that is caused by lack of adequate measurement on oceanic waves, and the error sources in the spectral analysis are mainly due to above- mentioned items and low accurate of the proposed free parameters of double-peaked spectrum on the experimental data from the Caspian Sea.
    Description: PhD
    Description: Advisors: Chegini, V., Banazadeh, M.; Counselors: Dolatshahi pirouz, M.
    Keywords: Environment ; Oceanography
    Repository Name: AquaDocs
    Type: thesis
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  • 19
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    Study and investigation of the various reactions of Mazandaran Province shoreline against wind waves (2021)
    Islamic Azad University, Science and Research Branch, Tehran, Marine Physics
    In:  http://aquaticcommons.org/id/eprint/20690 | 17408 | 2016-06-24 08:10:02 | 20690 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-12
    Description: Determining of beach states and study of manner sediment transmission in beach profile, involves the evaluating the actions of hydrodynamic forces dominated over the beaches, in this research through determining the beach states by the help of Hanson and short method, different reactions of Mazandaran’s shoreline against wind waves was studied and investigated. For this reason, First, the kind of hydrodynamic forces dominated over the beaches of this province was studied and beaches of the this province was distinguished as wave–dominated beaches, afterwards eight stations are chosen throughout the shoreline and the waves qualities and the sediments regarding to different depth was evaluated in these stations by using software and laboratory actions. In this way the parameter of dimensionless fall velocity each station was calculated and the beach states and their changes according to time was studied. Finally, the gained information is located in the software area of Arc GIS, and the waves dynamics and the way of erosion and accretion was evaluated in each station. In this research by study of air photographs during a thirty years period we found that was no remarkable changes at shoreline in western and central parts and each type of change depends upon the delta, while eastern part of coast at the location of breakwaters in neighbouring of Farahabad Station, accretion features is quiet evident. In the main results of this research, it became obvious that the beach state in the stations Neca, Farahabad, Larim, Naftchal, Mazandaran university, Babolsar, Noor is dissipative and the beach in Nashtarood station is in intermediate (ridge and runnel) state to the extend that in the dissipation beaches from east to west, the degree of dissipation of the beaches is decreased continuously.
    Description: PhD
    Description: Advisors: Chegini, Vahid; Counsellors: Torabiazad, Masoud
    Keywords: Oceanography
    Repository Name: AquaDocs
    Type: thesis
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  • 20
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    A numerical model for prediction of oil, trajectory due to extraction activity in the north coasts of the Persian Gulf (2021)
    Islamic Azad University, Science and Research Branch, Tehran, Marine Physics
    In:  http://aquaticcommons.org/id/eprint/20887 | 17408 | 2016-07-18 01:33:53 | 20887 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-13
    Description: This thesis considers a three- dimensional numerical model based on 3-D Navier— Stokes and continuity equations involving various wind speeds (North west), water surface levels, horizontal shier stresses, eddy viscosity, densities of oil and gas condensate- water mixture flows. The model is used to simulate the prediction of the surface movement of oil and gas condensate slicks from spill accident in the north coasts of Persian Gulf.
    Description: PhD
    Description: Advisor:M., Torabi Azad; Counsellors: A.A., Bidokhti
    Keywords: Engineering ; Oceanography
    Repository Name: AquaDocs
    Type: thesis
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  • 21
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    Study of the development and evolution of seasonal thermocline and turbulent processes in the northern parts of Persian Gulf using numerical modeling (2021)
    Islamic Azad University, Science and Research Branch, Tehran, Marine Physics
    In:  http://aquaticcommons.org/id/eprint/20956 | 17408 | 2016-08-08 09:32:12 | 20956 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-13
    Description: The Persian Gulf (PG) is a semi-enclosed shallow sea which is connected to open ocean through the Strait of Hormuz. Thermocline as a suddenly decrease of temperature in subsurface layer in water column leading to stratification happens in the PG seasonally. The forcing comprise tide, river inflow, solar radiation, evaporation, northwesterly wind and water exchange with the Oman Sea that influence on this process. In this research, analysis of the field data and a numerical (Princeton Ocean Model, POM) study on the summer thermocline development in the PG are presented. The Mt. Mitchell cruise 1992 salinity and temperature observations show that the thermocline is effectively removed due to strong wind mixing and lower solar radiation in winter but is gradually formed and developed during spring and summer; in fact as a result of an increase in vertical convection through the water in winter, vertical gradient of temperature is decreased and thermocline is effectively removed. Thermocline development that evolves from east to west is studied using numerical simulation and some existing observations. Results show that as the northwesterly wind in winter, at summer transition period, weakens the fresher inflow from Oman Sea, solar radiation increases in this time interval; such these factors have been caused the thermocline to be formed and developed from winter to summer even over the northwestern part of the PG. The model results show that for the more realistic monthly averaged wind experiments the thermocline develops as is indicated by summer observations. The formation of thermocline also seems to decrease the dissolved oxygen in water column due to lack of mixing as a result of induced stratification. Over most of PG the temperature difference between surface and subsurface increases exponentially from March until May. Similar variations for salinity differences are also predicted, although with smaller values than observed. Indeed thermocline development happens more rapidly in the Persian Gulf from spring to summer. Vertical difference of temperature increases to 9 centigrade degrees in some parts of the case study zone from surface to bottom in summer. Correlation coefficients of temperature and salinity between the model results and measurements have been obtained 0.85 and 0.8 respectively. The rate of thermcline development was found to be between 0.1 to 0.2 meter per day in the Persian Gulf during the 6 months from winter to early summer. Also it is resulted from the used model that turbulence kinetic energy increases in the northwestern part of the PG from winter to early summer that could be due to increase in internal waves activities and stability intensified through water column during this time.
    Description: PhD
    Description: Advisors: Abbasali, Akbari Bidokhti; Hooshang, Bassirparsa; counsellors: Farhang, Ahmadi Givi; Ali, Karami Khaniki
    Keywords: Oceanography
    Repository Name: AquaDocs
    Type: thesis
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  • 22
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    Three dimensional numerical simulation of thermohaline currents of the Persian Gulf (2021)
    Islamic Azad University, Science and Research Branch, Tehran, Marine Physics
    In:  http://aquaticcommons.org/id/eprint/20954 | 17408 | 2016-08-08 09:28:12 | 20954 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-13
    Description: Observational data and a three dimensional numerical model (POM) are used to investigate the Persian Gulf outflow structure and its spreading pathway into the Oman Sea. The model is based on orthogonal curvilinear coordinate system in horizontal and train following coordinate (sigma coordinate) system in vertical. In the simulation, the horizontal diffusivity coefficients are calculated form Smogorinsky diffusivity formula and the eddy vertical diffusivities are obtained from a second turbulence closure model (namely Mellor-Yamada level 2.5 model of turbulence). The modeling area includes the east of the Persian Gulf, the Oman Sea and a part of the north-east of the Indian Ocean. In the model, the horizontal grid spacing was assumed to be about 3.5 km and the number of vertical levels was set to 32. The simulations show that the mean salinity of the PG outflow does not change substantially during the year and is about 39 psu, while its temperature exhibits seasonal variations. These lead to variations in outflow density in a way that is has its maximum density in late winter (March) and its minimum in mid-summer (August). At the entrance to the Oman Sea, the PG outflow turns to the right due to Coriolis Effect and falls down on the continental slope until it gains its equilibrium depth. The highest density of the outflow during March causes it to sink more into the deeper depths in contrast to that of August which the density is the lowest one. Hence, the neutral buoyancy depths of the outflow are about 500 m and 250 m for March and August respectively. Then, the outflow spreads in its equilibrium depths in the Oman Sea in vicinity of western and southern boundaries until it approach the Ras al Hamra Cape where the water depth suddenly begins to increase. Therefore, during March, the outflow that is deeper and wider relative to August, is more affected by the steep slope topography and as a result of vortex stretching mechanism and conservation of potential vorticity it separates from the lateral boundaries and finally forms an anti-cyclonic eddy in the Oman Sea. But during August the outflow moves as before in vicinity of lateral boundaries. In addition, the interaction of the PG outflow with tide in the Strait of Hormuz leads to intermittency in outflow movement into the Oman Sea and it could be the major reason for generations of Peddy (Peddies) in the Oman Sea.
    Description: PhD
    Description: Advisors: A.و Bidokhti; A., Javid; Counsellors: A., Karami khaniki; V., Chegini
    Keywords: Oceanography
    Repository Name: AquaDocs
    Type: thesis
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  • 23
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    Physical modeling of processes of sediment transport in inlets (2021)
    Islamic Azad University, Science and Research Branch, Tehran, Marine Physics
    In:  http://aquaticcommons.org/id/eprint/20988 | 17408 | 2016-08-17 09:37:03 | 20988 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-13
    Description: During the transformation of the low tide to the high tide, an exactly inverse phenomenon is occurred and the high tidal delta is formed at the mouth upstream. Increasing the tidal range does not affect the nature of this phenomenon and just change its intensity. In this situation, the inlet will be balance over time. A new relationship between equilibrium cross section and tidal prism for different tidal levels as well as sediment grading has been provided which its results are corresponded with results of numerical modeling. In the combination state, the wave height significantly affects the current and sedimentary pattern such that the wave height dimensionless index (Hw/Ht) determines the dominant parameter (the short period wave or tide) in the inlet. It is notable that in this state, the inlet will be balanced over the time. In order to calculate sedimentary phenomena, each of which are individually determined under solely wave and only tide conditions and then they are added. Estimated values are similar to numerical modeling results of the combination state considering nonlinear terms. Also, it is clear that the wave and tide performance is of meaning in the direct relationship with the water level. The water level change causes variations of the position of the breaking line and sedimentary active area. It changes the current and sedimentary pattern coastward while does not change anything seaward. Based on modeling results of sediment transport due to the wave, tide and their combination, it could be said that the erosion at the mouth due to the wave is less than that due to the wave and tide combination. In these situations, tide and wave-tide combination increase the low tidal and high tidal delta volume, respectively. Hence, tide plays an effective role in changing sedimentary phenomena at the channel and mouth downstream. Whereas, short period and combined waves have a crucial role in varying the morphology and sediment transport coast ward.
    Description: PhD
    Description: Advisors: A., Karami Khaniki; Aliakbari, Bidokhti; counsellors: S., Ghader
    Keywords: Oceanography
    Repository Name: AquaDocs
    Type: thesis
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  • 24
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    Numerical study of circulation in the Caspian Sea and its effects on the southern coastal currents (2021)
    Islamic Azad University, Science and Research Branch, Tehran, Marine Physics
    In:  http://aquaticcommons.org/id/eprint/20990 | 17408 | 2016-08-17 09:38:02 | 20990 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-13
    Description: In this study, numerical simulation of the Caspian Sea circulation was performed using COHERENS three-dimensional numerical model and field data. The COHERENS three-dimensional model and FVCOM were performed under the effect of the wind driven force, and then the simulation results obtained were compared. Simulation modeling was performed at the Caspian Sea. Its horizontal grid size is approximately equal to 5 Km and 30 sigma levels were considered. The numerical simulation results indicate that the winds' driven-forces and temperature gradient are the most important driving force factors of the Caspian circulation pattern. One of the effects of wind-driven currents was the upwelling phenomenon that was formed in the eastern shores of the Caspian Sea in the summer. The simulation results also indicate that this phenomenon occurred at a depth less than 40 meters, and the vertical velocity in July and August was 10 meters and 7 meters respectively. During the upwelling phenomenon period the temperatures on the east coast compared to the west coast were about 5°C lower. In autumn and winter, the warm waters moved from the south east coast to the north and the cold waters moved from the west coast of the central Caspian toward the south. In the subsurface and deep layers, these movements were much more structured and caused strengthening of the anti-clockwise circulation in the area, especially in the central area of Caspian. The obtained results of the two models COHERENS and FVCOM performed under wind driven-force show a high coordination of the two models, and so the wind current circulation pattern for both models is almost identical.
    Description: PhD
    Description: Advisors: V., Chegini; A.A., Bidokhti; counsellors: F., Ahmadi-Givi
    Keywords: Oceanography
    Repository Name: AquaDocs
    Type: thesis
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  • 25
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    The study of the sedimentation mechanism in channels under the impact of tidal currents (2021)
    Islamic Azad University, Science and Research Branch, Tehran, Marine Physics
    In:  http://aquaticcommons.org/id/eprint/20992 | 17408 | 2016-08-10 01:08:39 | 20992 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-13
    Description: The purpose of this research is to study sedimentation mechanism by mathematical modeling in access channels which are affected by tidal currents. The most important factor for recognizing sedimentation process in every water environment is the flow pattern of that environment. It is noteworthy that the flow pattern is affected by the geometry and the shape of the environment as well as the type of existing affects in area. The area under the study in this thesis is located in Bushehr Gulf and the access channels (inner and outer). The study utilizes the hydrodynamic modeling with unstructured triangular and non-overlapping grids, using the finite volume, From method analysis in two scale sizes: large scale (200 m to 7.5km) and small scale (50m to 7.5km) in two different time durations of 15 days and 3.5 days to obtain the flow patterns. The 2D governing equations used in the model are the Depth-Averaged Shallow Water Equations. Turbulence Modeling is required to calculate the Eddy Viscosity Coefficient using the Smagorinsky Model with coefficient of 0.3. In addition to the flow modeling in two different scales and the use of the data of 3.5 day tidal current modeling have been considered to study the effects of the sediments equilibrium in the area and the channels. This model is capable of covering the area which is being settled and eroded and to identify the effects of tidal current of these processes. The required data of the above mentioned models such as current and sediments data have been obtained by the measurements in Bushehr Gulf and the access channels which was one of the PSO's (Port and Shipping Organization) project-titled, "The Sedimentation Modeling in Bushehr Port" in 1379. Hydrographic data have been obtained from Admiralty maps (2003) and Cartography Organization (1378, 1379). The results of the modeling includes: cross shore currents in northern and north western coasts of Bushehr Gulf during the neap tide and also the same current in northern and north eastern coasts of the Gulf during the spring tide. These currents wash and carry fine particles (silt, clay, and mud) from the coastal bed of which are generally made of mud and clay with some silts. In this regard, the role of sediments in the islands of this area and the islands made of depot of dredged sediments should not be ignored. The result of using 3.5 day modeling is that the cross channels currents leads to settlement places in inner and outer channels in tidal period. In neap tide the current enters the channel from upside bend of the two channels and outer channel. Then it crosses the channel oblique in some places of the outer channel. Also the oblique currents or even almost perpendicular current from up slope of inner channel between No. 15 and No. 18 buoys interact between the parallel currents in the channel and made secondary oblique currents which exit as a down-slope current in the channel and causes deposit of sediments as well as settling the suspended sediments carried by these currents. In addition in outer channel the speed of parallel currents in the bend of the channel which is naturally deeper increases. Therefore, it leads to erosion and suspension of sediments in this area. The speed of suspended sediments carried by this current which is parallel to the channel axis decreases when they pass through the shallower part of the channel where it is in the buoys No.7 and 8 to 5 and 6 are located. Therefore, the suspended sediment settles and because of this process these places will be even shallower. Furthermore, the passing of oblique upstream leads to settlement of the sediments in the up-slope and has an additional effect on the process of decreasing the depth of these locations. On the contrary, in the down-slope channel, as the results of sediments and current modeling indicates the speed of current increases and the currents make the particles of down-slope channel suspended and be carried away. Thus, in a vast area of downstream of both channels, the sediments have settled. At the end of the neap tide, the process along with circulations in this area produces eddies which causes sedimentation in the area. During spring some parts of this active location for sedimentation will enter both channels in a reverse process. The above mentioned processes and the places of sedimentation and erosion in inner and outer channels are validated by the sediments equilibrium modeling. This model will be able to estimate the suspended, bed load and the boundary layer thickness in each point of both channels and in the modeled area.
    Description: PhD
    Description: Advisors: A.A., Bidokhti; counsellors: M.M., Namin; M., Torabi
    Keywords: Oceanography
    Repository Name: AquaDocs
    Type: thesis
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  • 26
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    Field study and numerical simulation of developing red tide in the northern Strait of Hormuz (2021)
    Islamic Azad University, Science and Research Branch, Tehran, Marine Physics
    In:  http://aquaticcommons.org/id/eprint/21025 | 17408 | 2016-08-24 10:12:46 | 21025 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-13
    Description: The catastrophic event of red tide has happened in the Strait of Hormuz, the Persian Gulf and Gulf of Oman from late summer 2008 to spring 2009. With its devastating effects, the phenomenon shocked all the countries located in the margin of the Persian Gulf and the Gulf of Oman and caused considerable losses to fishery industries, tourism, and tourist and trade economy of the region. In the maritime cruise carried out by the Persian Gulf and Gulf of Oman Ecological Research Institute, field data, including temperature, salinity, chlorophyll-a, dissolved oxygen and algal density were obtained for this research. Satellite information was received from MODIS and MERIS and SeaWiFS sensors. Temperature and surface chlorophyll images were obtained and compared with the field data and data of PROBE model. The results obtained from the present research indicated that with the occurrence of harmful algal blooms (HAB), the Chlorophyll-a and the dissolved oxygen contents increased in the surface water. Maximum algal density was seen in the northern coasts of the Strait of Hormuz. Less concentration of algal density was detected in deep and surface offshore water. Our results show that the occurred algal bloom was the result of seawater temperature drop, water circulation and the adverse environmental pollutions caused by industrial and urban sewages entering the coastal waters in this region of the Persian Gulf ,This red tide phenomenon was started in the Strait of Hormuz and eventually covered about 140,000 km2 of the Persian Gulf and total area of Strait of Hormuz and it survived for 10 months which is a record amongst the occurred algal blooms across the world. Temperature and chlorophyll satellite images were proportionate to the measured values obtained by the field method. This indicates that satellite measurements have acceptable precisions and they can be used in sea monitoring and modeling.
    Description: PhD
    Description: Advisors: A.A.,Bidokhti; M.S.,Mortazavi; Counsellors: A.,Gheibi
    Keywords: Oceanography
    Repository Name: AquaDocs
    Type: thesis
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  • 27
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    Analyzing the effect of connecting horizontal tidal stream turbines on the pier of a sea established bridge (2021)
    Islamic Azad University, Science and Research Branch, Tehran, Marine Physics
    In:  http://aquaticcommons.org/id/eprint/21052 | 17408 | 2016-10-10 09:43:45 | 21052 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-13
    Description: In this thesis, producing ability of electricity by horizontal tidal current turbines and installing possibility of these turbines on bridge's piers in the marine environments has been studied to reduce primary implementation costs and make the plan, economical. To do this and to study its feasibility, the exerted forces from installing horizontal tidal current turbines were compared with the forces applied to the bridge structure during designing process (given in the Standards). Then, the allowable ranges of the overloading which is tolerable by the piers of the bridge were obtained. Accordingly, it is resulted that for installing these turbines, the piers of the existing bridges are required to be strengthened. Because of increasing usage of renewable powers and as a suggestion, the exerted forces from installing turbine for loading coefficients of different Standards are given. Finally as an example, preliminary designing of a horizontal tidal current turbine was carried out for Gesham Channel and the forces exerted from turbine to the bridge's pier were calculated for the future usage in order to create a test site of real dimensions.
    Description: Masters
    Description: Advisers: M., Ghodsi Hasanabad; Counsellors: M., Ezam
    Keywords: Engineering ; Oceanography
    Repository Name: AquaDocs
    Type: thesis
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  • 28
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    The study of correlation between sea surface temperature (SST) by using the NOAA-AVHRR data and compare this data with temperature measurement in the Caspian Sea (2021)
    Islamic Azad University, Science and Research Branch, Tehran, Marine Physics
    In:  http://aquaticcommons.org/id/eprint/21060 | 17408 | 2016-10-12 07:57:36 | 21060 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-13
    Description: The changes in time and location of surface temperature from a water body has an important effect on climate activities, marine biology, sea currents, salinity and other characteristics of the seas and lakes water. Traditional measurement of temperature is costly and time consumer due to its dispersion and instability. In recent years the use of satellite technology and remote sensing sciences for data acquiring and parameter and lysis of climatology and oceanography is well developed. In this research we used the NOAA’s Satellite images from its AVHRR system to compare the field surface temperature data with the satellite images information. Ten satellite images were used in this project. These images were calibrated with the field data at the exact time of satellite pass above the area. The result was a significant relation between surface temperaturesfrom satellite data with the field work. As the relative error less than %40 between these two data is acceptable, therefore in our observation the maximum error is %21.2 that can be considered it as acceptable. In all stations the result of satellite measurements is usually less than field data that cores ponds with the global result too. As this sea has a vast latitude, therefore the different in the temperature is natural. But we know this factor is not the only cause for surface currents. The information of all satellites were images extracted by ERDAS software, and the “Surfer” software is used to plot the isotherm lines.
    Description: Masters
    Description: Advisor: Massoud, Torabi Azad; Counsellor: Ahmad, Daleki
    Keywords: Environment ; Oceanography
    Repository Name: AquaDocs
    Type: thesis
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    Effect of sea water level rise on sandy beach profile (2021)
    Islamic Azad University, Science and Research Branch, Tehran, Marine Physics
    In:  http://aquaticcommons.org/id/eprint/21058 | 17408 | 2016-10-12 07:48:06 | 21058 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-13
    Description: Study of batch profile evolution and scouring effect due to the wave and current impacts in the coastal zone has been one of the most important issues in coastal engineering research projects during the past decades .to construct the coastal protective structures such piers, breakwaters and seawalls, it is necessary to estimate the scouring depth and bed level changes in the vicinity of such structures. Furthermore, the time - dependent changes in the equilibrium profile of the surf zone can be of great importance in designing coastal structures. Because of the importanceof coastal engineering study in Iran due to the existence of two important coastal area located in the north and south parts of the country, and due to the lack of classified data in this respect (particularly the effect of sea level rise on coastal morphology) in the present study, based on the available data of Bandar Anzali region, an analysis of the coastal zone behavior is made. Bed level elevations are measured and compared with the theoretical equilibrium profile. It is shown that the behavior of the coastal zone in the region is consistent with the dean (equilibrium profile . In the next stage, following extensive investigations, the bed level changes due to a rise in sea level at different locations in the surf zone areestimated. Finally based on the results obtained for profile evolution due to sea level rise, the conclusion is made for design of coastal structures located in the study area. The results obtained from the present study indicate that the sea level rise can have a significant effect on beach profile and resulting erosion in the study area. The results are graphically presented with can be used for design purposes and establishing a data base for the coastal zone in the study region. It is believed that the present work can be regarded as a contribution to the existing knowledge of coast process in the study area and referred to as a basis for the future coastal research projects.
    Description: Masters
    Description: Supervisor: Mir Ahmad, Lashte Neshaei; Counsellors: Masoud, Torabi Azad; Mojtaba, Ezam
    Keywords: Environment ; Oceanography
    Repository Name: AquaDocs
    Type: thesis
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    Investigation and prediction of sea level variations in the northern coasts of Persian Gulf using artificial neural network (2021)
    Islamic Azad University, Science and Research Branch, Tehran, Marine Physics
    In:  http://aquaticcommons.org/id/eprint/21059 | 17408 | 2016-10-12 07:53:09 | 21059 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-13
    Description: Sea- level variations have a significant impact on coastal areas. Prediction of sea level variations expected from the pre most critical information needs associated with the sea environment. For this, various methods exist. In this study, on the northern coast of the Persian Gulf have been studied relation to the effectiveness of parameters such as pressure, temperature and wind speed on sea leve and associated with global parameters such as the North Atlantic Oscillation index and NAO index and present statistic models for prediction of sea level. In the next step by using artificial neural network predict sea level for first in this region. Then compared results of the models. Prediction using statistical models estimated in terms correlation coefficient R = 0.84 and root mean square error (RMS) 21.9 cm for the Bushehr station, and R = 0.85 and root mean square error (RMS) 48.4 cm for Rajai station, While neural network used to have 4 layers and each middle layer six neurons is best for prediction and produces the results reliably in terms of correlation coefficient with R = 0.90126 and the root mean square error (RMS) 13.7 cm for the Bushehr station, and R = 0.93916 and the root mean square error (RMS) 22.6 cm for Rajai station. Therefore, the proposed methodology could be successfully used in the study area.
    Description: Masters
    Description: Supervisor:E., Hasanzadeh; Counsellor: Ali Akbari, Bidokhti
    Keywords: Environment ; Oceanography
    Repository Name: AquaDocs
    Type: thesis
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    Format: application/pdf
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    PICES Press, Vol. 22, No. 2, Summer 2014 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/21568 | 121 | 2017-09-28 17:47:39 | 21568 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-15
    Description: FUTURE and the FUTURE Open Science Meeting— The future of FUTURE (pp. 1-2); 2014 Inter-sessional Science Board Meeting: A note (pp. 3-5); More attractive science ecosystem design for FUTURE and beyond: A personal view (pp. 6-8); OSM Session on “Identifying multiple pressures and system responses in North Pacific marine ecosystems” (pp. 9-10); OSM Session on “Regional climate modeling in the North Pacific” (pp. 11-11); OSM Session on “Challenges in communicating science and engaging the public” (pp. 12-15); OSM Sessions on “Ecosystem status, trends, and forecasts” and “Ecosystem resilience and vulnerability” (pp. 16-17); OSM Session on “Strategies for ecosystem management in a changing climate” (pp. 18-19); OSM Workshop on “Top predators as indicators of climate change” (pp. 20-23); OSM Workshop on “Bridging the divide between models and decision-making” (pp. 24-26); OSM Workshop on “Climate change and ecosystem-based management of living marine resources” (pp. 27-28); OSM Workshop on an “Ecosystem projection model inter-comparison and assessment of climate change impacts on global fish and fisheries” (29-34); ICES Symposium on the “Ecological basis of risk analysis for marine ecosystems” (pp. 35-38); Human dimensions in the Russian Federation (pp. 39-42); Microbial Culture Collection at the National Institute for Environmental Studies, Tsukuba, Japan (pp. 43-45); The Bering Sea: Current status and recent trends (pp. 46-48); The state of the western North Pacific in the second half of 2013 (pp. 49-50); Unusual warming in the Gulf of Alaska (pp. 51-52); Obituary – Dr. Toshiro Saino (pp. 53-55); Program of topic sessions and workshops at PICES-2014 (pp. 56-56); 3rd International Symposium on “Effects of climate change on the world’s oceans” (pp. 57-57); PICES Interns (pp. 58-58)
    Keywords: Ecology ; Environment ; Fisheries ; Information Management ; Oceanography ; marine ecosystems ; human dimension ; ecosystem management ; regional climate modeling ; climate change ; Bering Sea ; Western North Pacific ; Gulf of Alaska
    Repository Name: AquaDocs
    Type: monograph
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    Format: application/pdf
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    Report of Working Group 22 on Iron Supply and its Impact on Biogeochemistry and Ecosystems in the North Pacific Ocean (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/21579 | 121 | 2017-09-28 19:51:16 | 21579 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-15
    Description: The Working Group on Iron Supply and its Impact on Biogeochemistry and Ecosystems in the North Pacific Ocean (WG 22) was established October 2007 under the direction of the Biological Oceanography Committee (BIO) and consisted of 20 members from all PICES member countries, including Co-Chairmen, Drs. Shigenobu Takeda (Japan) and Fei Chai (USA). The purpose of the Working Group was to examine the role of iron biogeochemistry and its impact on biological productivity and marine ecosystems. WG 22 has completed the following four goals in its terms of reference:1. Compile and synthesize available iron biogeochemistry data in the North Pacific;2. Review the past and ongoing laboratory, field and modeling studies on iron biogeochemistry and its impact on biological productivity and marine ecosystems in the North Pacific Ocean;3 Determine the natural supplies of iron to the North Pacific, which include atmospheric dust transport and movement of iron-enriched waters, and examine linkages between iron supply and ecosystem responses;4. Identify gaps and issues related to experimental and modeling activities, encourage and plan national and international scientific programs on iron biogeochemistry and its impact on marine ecosystems in the North Pacific.WG 22 has accomplished most of its originally proposed objectives. Through Annual Meetings, we kept the iron community in all PICES member countries together on a regular basis. Our Working Group members actively exchanged ideas and discussed their ongoing research results, which led to several important publications. We also consolidated some of available iron data for the North Pacific, and more data will be added to this data set as time goes on. We are confident that our short 3-year effort will provide a sound foundation for future iron-related research in the North Pacific Ocean.
    Keywords: Earth Sciences ; Ecology ; Environment ; Oceanography ; subarctic North Pacific Ocean ; iron biogeochemistry ; iron supply ; phytoplankton productivity ; marine ecosystems
    Repository Name: AquaDocs
    Type: monograph
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    Distribution of dinoflagellate cysts in the surface sediment of the South China Sea, Area I: Gulf of Thailand and east coast of Peninsular Malaysia (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26350 | 23782 | 2019-03-22 06:25:19 | 26350 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2021-07-24
    Description: To obtain more information on the distribution of dinoflagellate cysts in Thai and Malaysian waters, the surface sediment samples of 48 stations in the Gulf of Thailand and the east coast of Peninsular Malaysia were collected by M.V. SEAFDEC during the research cruise in September 1995 and repeated again in April 1996. Cysts of 20 species belonging to Goniolacoid, Tuberculodinioid and Peridinioid were found in the surface sediments collected from both cruises. Spiniferites spp. (=Gonyaulax spp.) were the dominant cyst in Thai and Malaysian waters. No cysts of harmful species were observed during this study.
    Keywords: Fisheries ; Oceanography ; Dominant species ; Cysts ; Sediments ; Benthos ; Gonyaulax ; Dinoflagellata ; Spiniferites ; South China Sea ; Gulf of Thailand ; Malaysia
    Repository Name: AquaDocs
    Type: book_section
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    Format: application/pdf
    Format: 294-309
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    Proceedings of the Second Technical Seminar on Marine Fishery Resources Survey in the South China Sea, Area II: Sarawak, Sabah and Brunei Darussalam Waters, 14-15 December 1998, Kuala Lumpur, Malaysia (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26397 | 23782 | 2019-04-11 08:14:12 | 26397 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2021-07-24
    Description: Due to gross over-exploitation and a paucity of adequate information on fishery oceanographic, environmental and biological conditions that sustain the fisheries of the South China Seas region, the fisheries have become greatly impoverished. The deficiency in scientific intelligence has also circumscribed all attempts at substantive and tangible planning or management of fisheries throughout the region. The NAGA Oceanographic Expedition of 1959-1961, organized jointly by the United States of America, The Kingdom of Thailand and the erstwhile Republic of Vietnam, achieved pioneering oceanographic work in the Gulf of Thailand and the South China Seas. This invaluable scientific data acquisition was not pursued for a number of reasons, and thus, a holistic and dependable profile of oceanographic conditions and their seasonal variations and patterns failed to develop. Perceiving the vital importance and the deficiency of fundamental information and data for fisheries planning and management, the SEAFDEC Training Department (TD) and the Marine Fisheries Resources Development and Management Department (MFRDMD), jointly launched an inter-Department Collaborative Research program in 1995, to evaluate the fisheries resources of the South china Sea as a basal objective in the development of sustainable fisheries.
    Keywords: Fisheries ; Oceanography ; Oceanography ; Oceanographic surveys ; Primary production ; Check lists ; Abundance ; Biomass
    Repository Name: AquaDocs
    Type: book
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    Format: application/pdf
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    Study and analysis of the waves and currents interaction phenomena (2021)
    Islamic Azad University, Science and Research Branch, Tehran, Marine Physics
    In:  http://aquaticcommons.org/id/eprint/20456 | 17408 | 2016-07-18 01:12:10 | 20456 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-10
    Description: Interaction of ocean waves, currents and sea bed roughness is a complicated phenomena in fluid dynamic. This paper will describe the governing equations of motions of this phenomena in viscous and nonviscous conditions as well as study and analysis the experimental results of sets of physical models on waves, currents and artificial roughness, and consists of three parts: First, by establishing some typical patterns of roughness, the effects of sea bed roughness on a uniform current has been studied, as well as the manning coefficient of each type is reviewed to find the critical situation due to different arrangement. Second, the effect of roughness on wave parameters changes, such as wave height, wave length, and wave dispersion equations have been studied, third, superimposing, the waves + current + roughness patterns established in a flume, equipped with waves + currents generator, in this stage different analysis has been done to find the governing dimensionless numbers, and present the numbers to define the contortions and formulations of this phenomena. First step of the model is verified by the so called Chinese method, and the Second step by the Kamphius (1975), and third step by the van Rijn (1990) , and Brevik and Ass ( 1980), and in all cases reasonable agreements have been obtained. Finally new dimensionless parameters presented for this complicated phenomena.
    Description: PhD
    Description: Advisors: M., Bannazadeh; Counsellors: V., Cheginy; A., Bidokhty
    Keywords: Oceanography
    Repository Name: AquaDocs
    Type: thesis
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    Format: application/pdf
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    Microstructures layering, mechanisms in the middle waters of the Persian Gulf (2021)
    Islamic Azad University, Science and Research Branch, Tehran, Marine Physics
    In:  http://aquaticcommons.org/id/eprint/20480 | 17408 | 2016-07-04 09:12:59 | 20480 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-10
    Description: Layered structures, known as micro structures in marine environments are common features of which their formation mechanisms are first reviewed. Some methods of measuring such features based on the measurements and theories are presented for the Persian Gulf. This includes determination of layers with temperature inversion (TI) associated with double diffusive convection (DDC). The relevant associated parameters are estimated from ROPME CTD data for late winter and early summer of 1992. Only in certain parts temperature inversion and DDC are observed which seem to produce layered structures. Observations show that the places with TI and DDC are mainly confined to the frontal regions where the water entering the Persian Gulf and water exiting it meet, nearly along the axis of the Gulf. TI and DDC is mainly observer in the northern bound of the front. Typical density ratio for regions with TI and DDC is 0.7 to 0.2 and the mean depth is at about 37 ± 3 m for the Persian Gulf. TI and DDC are also found in the outflow from the Persian Gulf to the Oman Gulf which is found to be at a depth of about 250 m. Horizontal addiction and reduction of solar heating seem to be the main reasons in producing layers with TI and DDC. It is also found that the regime of DDC in the Persian Gulf is more diffusive and the flow associated with intrusion layers with TI is non-isopycnal (more unstable). However for the Oman sea both diffusive and finger regime are observed and the flow is inferred to be isopycnal (more stable statically). Typical heat and salt fluxes due to DDC are found to be 6 W/m2 and 0.36 W/m2 respectively. Effective salinity diffusivity, Ks and heat diffusivity, Kr have been estimated for the places with DDC in the Persian Gulf and Oman Gulf (Ks=1.1 *10-7 m2/s, KT= 1.88*10-6 m2/s). Their values are within the values obtained by others. The buoyancy frequency for the Persian Gulf with typical mean value of 0.05s-1 is much higher than these of the free Oceans. Such large values of N (typically 0.05 s-1) indicate that processes such as tide can produce strong internal waves which may be another factor in producing layered structures. This requires separate study.
    Description: PhD
    Description: Advisors: Ali Akbar Bidokhti; Counsellors: Mohamad Reza, Bannazade
    Keywords: Environment ; Oceanography
    Repository Name: AquaDocs
    Type: thesis
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    Format: application/pdf
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    Three dimensional circulation of water with variable wind in the Caspian Sea (2021)
    Islamic Azad University, Science and Research Branch, Tehran, Marine Physics
    In:  http://aquaticcommons.org/id/eprint/20570 | 17408 | 2016-08-17 09:00:47 | 20570 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-11
    Description: This research is based on a numerical model for forecasting the three-dimensional behavior of (sea) water motion due to the effect of a variable wind velocity. The results obtained are then analyzed and compared with observation. This model is based on the equations that overcome the current and distribution of temperature by applying the method of finite difference with assuming Δx, Δy as constant and Δz, variable. The model is based on the momentum equation, continuity equation and thermodynamic energy equation and tension at the surface and middle layers and bottom stress. The horizontal and vertical eddy viscosity and thermal diffusivity coefficients we used in accordance with that of the Bennet on Outario Lake (1977). Considering the Caspian Sea dimension in numerical model the Coriolis parameter used with β effects and the approximation Boussines have been used. For the program controlling some simple experiment with boundary condition similar to that of the Caspian Sea have been done. For modeling the Caspian Sea the grid of the field was done as follows: At horizontal surface grid size is 10×10km extension and at vertical in 10 layers with varying thickness from surface to bed respectively as: 5, 10, 20, 3, 50, 100, 150, 200, 25, 500 and higher. The data of wind as velocity، direction and temperature of water related to 15th September 1995 at 6،12 and 18 o’clock were obtained from synoptic station at the Caspian Sea shore and the research marine of Haji Alief. The information concerning shore wind was measured and by the method of SPM (shore protection manual) was transferred to far shore winds through interpolation and by use of inverse square distance of position distribution of the wind velocity at the Caspian surface field was obtained. The model has been evaluated according to the reports and observations. Through studying the position of the current in different layers، the velocity in the cross section in the northern، southern and the middle layers، will be discussed. The results reveal the presence of the circulation cells in the three above mentioned areas. The circulation with depth is reduced too. The results obtained through the numerical solution of the temperature equation have been compared with the observation. The temperature change in different layers in cross section illustrates the relative accordance of the model mentioned.
    Description: PhD
    Description: Advisors: Ghiasi, R.; counsellors: Dolatshahi, M.
    Keywords: Oceanography
    Repository Name: AquaDocs
    Type: thesis
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    Design and construction of a two dimensional duct equipped with a wave generator and a variable coastal slope and an ocean wave energy conversion system (OWC) (2021)
    Islamic Azad University, Science and Research Branch, Tehran, Marine Physics
    In:  http://aquaticcommons.org/id/eprint/21063 | 17408 | 2016-10-12 08:18:06 | 21063 | Islamic Azad University, Science and Research Branch, Tehran
    Details
    Publication Date: 2021-07-13
    Description: The aims of this thesis were evaluation the type of wave channel, wave current, and effect of some parameters on them and identification and comparison between types of wave maker in laboratory situations. In this study, designing and making of two dimension channels (flume) and wave maker for experiment son the marine buoy, marine building and energy conversion systems were also investigated. In current research, the physical relation between pump and pumpage and the designing of current making in flume were evaluated. The related calculation for steel building, channels beside glasses and also equations of wave maker plate movement, power of motor and absorb wave(co astal slope) were calculated. In continue of this study, the servo motor was designed and applied for moving of wave maker’s plate. One Ball Screw Leaner was used for having better movement mechanisms of equipment and convert of the around movement to linear movement. The Programmable Logic Controller (PLC) was also used for control of wave maker system. The studies were explained type of ocean energies and energy conversion systems. In another part of this research, the systems of energy resistance in special way of Oscillating Water Column (OWC) were explained and one sample model was designed and applied in hydrolic channel at the Sheikh Bahaii building in Azad University, Science and Research Branch. The dimensions of designed flume was considered at 16 1.98 0. 57 m which had ability to provide regular waves as well as irregular waves with little changing on the control system. The ability of making waves was evaluated in our designed channel and the results were showed that all of the calculation in designed flume was correct. The mean of error between our results and theory calculation was conducted 7%, which was showed the well result in this situation. With evaluating of designed OWC model and considering of changes in the some part of system, one bigger sample of this model can be used for designing the energy conversion system model. The obtained results showed that the best form for chamber in exit position of system, were zero degree (0) in angle for moving below part, forty and five (45) degree in front wall of system and the moving forward of front wall keep in two times of height of wave.
    Description: Masters
    Description: Advisors: Majed, Abbaspour; Counsellors: Amir Hossein, Javid; Masaoud, Torabi Azad
    Keywords: Oceanography
    Repository Name: AquaDocs
    Type: thesis
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    Dissolved oxygen and carbonate-carbon dioxide in the sea water of the South China Sea, Area I: Gulf of Thailand and east coast of Peninsular Malaysia (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26321 | 23782 | 2019-03-27 07:09:15 | 26321 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2021-07-24
    Description: Dissolved oxygen and carbonate system in seawater in the Gulf of Thailand and the east coast of Peninsular Malaysian September 1995 and April-May 1996 were determined. It was found that surface water was well in equilibrium with the atmosphere. The sub-pycnocline water in the Gulf had the chemistry that was distinctly different from the mixed layer as well as from sub-pycnocline water in the South China Sea near the mouth of the Gulf, even with the same depth. There were some evidences that intermediate water in the South China Sea might flow into the Gulf along the central axis and the coast of Vietnam and Cambodia, and exited the Gulf along the Thai-Malay Peninsular coast. The chemistry of deep water in the South China Sea off the coast of Western Malaysia varied its chemistry by a great deal among seasons which might be due to the prevailing monsoon. Seawater in the Gulf of Thailand and South China Sea was supersaturated with respected to the mineral calcite.
    Keywords: Chemistry ; Oceanography ; Carbonates ; Calcite ; Chemical oceanography ; Carbon dioxide ; Dissolved oxygen ; South China Sea ; Gulf of Thailand ; Malaysia
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    Some physical and chemical characteristics of bottom sediments in the South China Sea, Area I: Gulf of Thailand and east coast of Peninsular Malaysia (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26322 | 23782 | 2019-03-28 08:23:35 | 26322 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2021-07-24
    Description: Investigations on horizontal and vertical distribution in levels of total organic matter contents (TOM), acid volatile sulfides contents (AVS), and water contents (WC) of bottom sediments from the eastern and western parts of the Gulf of Thailand and the eastern part of the Peninsular Malaysia have been carried out during 5-28 September 1995 and 24 April to 17 May 1996 by M.V. SEAFDEC. The overall results indicated comparatively low amount of organic matters and sulfides deposited in the sediments. Considering on the vertical profiles, coupled efforts of low rate of sedimentation of the organic matters and high rate of their decomposition should play an important role providing fast diagenesis of their organic substances. Nevertheless, the particulate matters which had settled onto the sea bed and formed the sediments can be remarkably observed to accumulate in two major zones in the Gulf of Thailand; one in the central part of the upper gulf (around Station 7) and another one in the western part of the gulf, near Samui Island (around Station 23). Such an accumulation pattern was considered to be directly controlled by the bottom topography and current effort. The accumulation of organic materials there also implied the mode of biological fishery resources. High abundant of organisms in the benthic community should be observed. Moreover, according to biogeochemical interaction between the sediment-water interface, phytoplankton production in the overlying water column should be enhanced and, consequently, a congregation of organisms in the upper trophic levels especially those of fish species were accordingly expected. Future assessment for development of the fishery resources in the Gulf of Thailand and the eastern part of Peninsular Malaysia has been discussed.
    Keywords: Fisheries ; Oceanography ; Biogeochemical cycle ; Organic matter ; Phytoplankton ; Sedimentation ; Trophic levels ; Sediment analysis ; Vertical profiles ; Benthos ; South China Sea ; Gulf of Thailand ; Malaysia
    Repository Name: AquaDocs
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    Format: 12-33
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    Polynuclear aromatic hydrocarbon (PAH) and total aliphatic hydrocarbon (TAH) in the bottom sediment of the South China Sea, Area I: Gulf of Thailand and east coast of Peninsular Malaysia (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26327 | 23782 | 2019-03-28 08:37:18 | 26327 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2021-07-24
    Description: Surface sediment (0-2cm) from 23 stations in the Gulf of Thailand and the South China Sea were analysed for Polynuclear Aromatic Hydrocarbon (PAH), and Total Aliphatic Hydrocarbon (TAH). PAH was found to be in the range between 0.7047 mmg/g dry wt. (Stn 70) to 26.6066 mmg/g dry wt. (Stn 52) to 25.5314 mmg/g dry wt. (Stn 41). Long chain aliphatic hydrocarbon (n〉20) were found to be dominant species in the most of the sample.
    Keywords: Oceanography ; Pollution ; Saturated hydrocarbons ; Aromatic hydrocarbons ; Sediment analysis ; South China Sea ; Gulf of Thailand ; Malaysia
    Repository Name: AquaDocs
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    Format: 100-104
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    Distribution of macrobenthos in the South China Sea, Area I: Gulf of Thailand and east coast of Peninsular Malaysia (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26349 | 23782 | 2019-03-22 06:20:51 | 26349 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2021-07-24
    Description: A study on the macrobenthos profile was conducted using the research vessel MV SEAFDEC in almost all parts of the Gulf of Thailand and the East Coast of Peninsular Malaysia. A total of 44 stations were located within the Gulf of Thailand and 37 within that of East Coast of Peninsular Malaysia. Two cruises were carried out during the pre-and post-north-east monsoon. Macrobenthos showed greater density in Malaysian waters during the pre-monsoon period with 2500 individuals (at an average 67.6 individuals/m2) compared to the Gulf of Thailand which showed 860 individuals (average 19.5 individuals/m2). However, sampling after the monsoon has indicated quite the reverse, with 2680 individuals (60.9 individuals/m2) found in the Gulf of Thailand compared to 620 individuals (16.8 individuals/m2) in the East Coast of Peninsular Malaysia. All samples from both cruises were dominated by polychaete worms, followed by crustacea. Other groups such as echinoderms, molluscs, nemertians and sipunculids were also observed in lesser quantities. In terms of diversity, the Gulf of Thailand showed less families/taxa before the monsoon (with 20 families) than after the monsoon (with 35 families). The reverse holds true for the east coast of Peninsular Malaysia when 33 families were uncovered before the monsoon compared to 26 families after the monsoon. Among the dominant families/taxa were the polychaetes Cirratulidae, Orbiniidae, Eunicidae and Maldanidae; caridean shrimps and ophiuroids (brittle star).
    Keywords: Fisheries ; Oceanography ; Geographical distribution ; Species diversity ; Population density ; Zoobenthos ; Polychaeta ; Crustacea ; South China Sea ; Gulf of Thailand ; Malaysia
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    Temporal changes in the abundance of macrobenthos in the South China Sea, Area I: Gulf of Thailand and east coast of Peninsular Malaysia (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26345 | 23782 | 2019-03-22 05:43:06 | 26345 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2021-07-24
    Description: The ecology of macrobenthic fauna in the Gulf of Thailand and the east coast of Peninsular Malaysia was studied for two periods of time at pre NE monsoon (4 Sep.- 4 Oct. 1995) and post NE monsoon (23 Apr. -23 May, 1996). It was found that the overall abundance of macrobenthic fauna presented the highest density at station 52 (920 ind. m-2). Polychaete was the dominant group in the benthic communities. The result of the survey of the ecology of benthic fauna shows that the fauna density increases with a decreasing water depth. Polychaete, Crustacea and Echinoderm groups displayed a marked change in density with the during period of the monsoon and the diversity index showed different patterns during the pre and post NE monsoon periods.
    Keywords: Fisheries ; Oceanography ; Species diversity ; Abundance ; Population density ; Zoobenthos ; Monsoons ; South China Sea ; Gulf of Thailand ; Malaysia
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    Format: 156-171
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    Numerical simulations of the net current in the gulf of Thailand under different monsoon regimes (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26324 | 23782 | 2019-03-27 08:48:29 | 26324 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2021-07-24
    Description: Net circulation in the three layers in the Gulf of Thailand 0-10 m, 10-40 m and 〉40 m were simulated by a hydrological model using tri-monthly average of observed temperature, salinity, depth and wind. Prevailing monsoon was an important factor controlling current speed and direction of water above the pycnocline (0-40 m). The water in the upper 10 m flew from the South China Sea during the Northeast Monsoon and opposite during the Southwest Monsoon. The water in the near surface layer in all simulations was replenished mainly by the opposite flow in the mid-depth layer and only slightly from the deep, nutrient enriched, water below 40 m. The true circulation gyre could not be seen in our simulations but different degrees of eddies and meanders were evident in almost all runs. These features could play very important roles in the distribution and dispersion of dissolved, particulate and biological species, including pollution and larvae, and deserved more in depth studies in the future.
    Keywords: Oceanography ; Water currents ; Water circulation ; Monsoons ; South China Sea ; Gulf of Thailand
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    Format: application/pdf
    Format: 54-72
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  • 45
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    Biogeochemical implications of dissolved trace metal concentration and distribution in the South China Sea, Area 1: Gulf of Thailand and east coast of Peninsular Malaysia (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26326 | 23782 | 2019-03-28 08:33:06 | 26326 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2021-07-24
    Description: Dissolved cadmium, copper, iron, lead and nickel in seawater at different depths were analyzed using the cobalt-APDC coprecipitation technique. The concentrations found were low and within the range found in natural seawater elsewhere. Terrestrial sources, especially near the head of the Gulf of Thailand and the Nakorn Sri Thammarat-Songkhla area on the Thai-Malay Peninsular, were clearly observed especially during the high runoff season. External input and horizontal dispersion dominated over internal recycling and removal in controlling concentration and distribution of iron and copper but it was the opposite for cadmium, nickel and lead where biological removal near surface and bottom regeneration might explain the nutrient type vertical profiles of these elements.
    Keywords: Oceanography ; Biochemistry ; Trace metals ; Vertical profiles ; South China Sea ; Gulf of Thailand ; Malaysia
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: application/pdf
    Format: 86-99
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  • 46
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    Microplankton (including dinoflagellate and foraminifera) in the South China Sea, Area I: Gulf of Thailand and Peninsular Malaysia (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26351 | 23782 | 2019-03-22 06:50:38 | 26351 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2021-07-24
    Description: Joint collaborative research surveys in the Gulf of Thailand and the South China Sea around the east coast of Peninsular Malaysia during the pre northeast monsoon (4 September - 4 October, 1995) and the post northeast monsoon (24 April - 17 May, 1996) periods were carried out on board the MV SEAFDEC. The microplankton from the sampling stations consisted of more than 205 taxa consisting predominantly of blue green algae (2 species), diatoms (〉 120 species), dinoflagellates (〉 80 species) and microzooplankton (〉 30 groups). The dominant diatom species comprised of Chaetoceros lorenzianum, C. coastatum, Thalassionema frauenfeldii, Skeletonema costatum, Pleurosigma elongatum, Bacteriastrum comosun, Bacillaria paxillifera, Coscinodiscus jonesianus and Rhizosolenia calcar-avis. The genera Chaetoceros, Rhizosolenia, Coscinodiscus, Bacteriastrum and Ceratium were found to contain a wide range of species. Skeletonema bloom (1.12 x 106/m3; 47% of the total cell count) occurred around the Johore waters of the South China Sea. Dinoflagellate was also present during the premonsoon period, especially in offshore waters of the Gulf of Thailand and Terengganu nearshore waters of the South China Sea. The microzooplankton consisted of more than 30 species dominated by copepod nauplii while the foraminifera consisted mainly of the Globigerina species. The diversity index (H) and evenness index (J) values were usually high at stations near to the coast.
    Keywords: Fisheries ; Oceanography ; Dominant species ; Species diversity ; Plankton ; Foraminifera ; Bacillariophyta ; Dinoflagellata ; Cybiosarda elegans ; South China Sea ; Gulf of Thailand ; Malaysia
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    Format: application/pdf
    Format: 310-335
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    Geostrophic current, divergence and convergence in the South China Sea, Area II: Sabah, Sarawak and Brunei Darussalam (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26399 | 23782 | 2019-04-10 08:29:25 | 26399 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2021-07-24
    Description: Current and circulation patterns for the area where water depth exceeded 500 m were calculated from geostrophic balance. Divergence and convergence inferred from horizontal circulation matched quite well with the observed vertical migration of the pycnocline, i.e. an indication of upwelling and downwelling. The spatial circulation pattern for July-August 1996 was quite different from that for May 1997, despite a generally similar prevailing wind. Eddies and meanders were the main features causing the difference. Interpretation of chemical and biological data of the area should take into consideration these local and sporadic physical phenomena.
    Keywords: Oceanography ; Ocean currents ; Geostrophic flow ; Convergence ; Ocean circulation ; Divergence ; Current observations ; South China Sea ; Malaysia ; Sarawak ; Borneo ; Sabah ; Indonesia
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    Sedimentological characteristics of sediments of the South China Sea, Area II: Sarawak, Sabah and Brunei Darussalam waters (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26402 | 23782 | 2019-04-11 06:32:00 | 26402 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2021-07-24
    Description: Surficial investigation of bottom sediments was conducted within the waters off the coast of Sabah, Sarawak and Brunei Darussalam. Two sampling of bottom sediments were conducted, one before (September 1996) and one after (April 1997) the Northeast monsoon period, which normally lasts from November to February annually. During the pre-monsoon cruise, fifty-one samples were collected while 52 samples were collected during the post-monsoon exercise. The collected samples were analysed for their sedimentological characteristics of mean, sorting, skewness and kurtosis. Analyses revealed that the post-monsoon sediments are finer, better sorted in arrangement, more symmetrical and less peaked than the pre-monsoon sediments. Deeper water sediment shows the same characteristics as described above when compared to shallow water sediments. In general, the near-shore sediments are coarsest, more poorly sorted, more positively skewed and most peaked in characteristics when compared to the mid-shore and off-shore sediments.
    Keywords: Oceanography ; Sediment sampling ; Sediment properties ; Sedimentology ; South China Sea ; Malaysia ; Sarawak ; Sabah ; Brunei Darussalam
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    Format: application/pdf
    Format: 95-110
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    Distribution and composition of photosynthetic pigments in the South China Sea, Area II: Sabah, Sarawak and Brunei Darussalam waters (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26406 | 23782 | 2019-04-11 06:59:05 | 26406 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2021-07-24
    Description: Depth integrated biomass of phytoplankton in the southern part of the South China Sea off Sarawak, Brunei Darussalam and Sabah in July 1996 and May 1997 was represented by in situ fluorescence. The total biomass in the study area was not much different between the 2 surveys. However, the spatial distribution of biomass clearly showed a unique pattern for each cruise. In overall, the local biomass per unit area did not correlate strongly with surface mixed layer thickness and sea surface temperature, two indicators of upwelling used in this study. Yet, anomalously high biomass of phytoplankton found in the vicinity of Stations 37 and 38 for both survey periods could be partially related by upwelling nearby.
    Keywords: Oceanography ; Upwelling ; Photosynthetic pigments ; Phytoplankton ; Biomass ; South China Sea ; Malaysia ; Sarawak ; Sabah ; Brunei Darussalam
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    Format: 156-164
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    Species composition and diversity of fishes in the South China Sea, Area II: Sarawak, Sabah and Brunei Darussalam waters (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26412 | 23782 | 2019-04-10 07:50:47 | 26412 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2021-07-24
    Description: The collaborative research on species composition and diversity of fishes in the Sabah and Sarawak waters was carried out by using otter-board trawling, through K.K. Manchong, including taxonomic survey for commercial coastal fishes landed in the markets of Sarikei, Bintulu, Miri, Labuan and Kota Kinabalu. Totally 518 species from 24 orders and 108 families were obtained. Hundred and three economic species were obtained from trawling survey and 106 species from the markets. The station point at St. 33 and 48 is the highest species richness, 69 and 70 species found. The highest CPUE were obtained at St. 44 and 48 (196 and 144 kg). Demersal species form main composition of the catches with the 9 dominant economic species. This trawling survey obtained few amount of 37 pelagic species. This survey also found the third record of Hapalogenys analis and Pomadasys auritus from the Southeast Asian waters.
    Keywords: Fisheries ; Oceanography ; Marine fish ; Catch composition ; Trawling ; Fishery surveys ; Species diversity ; Commercial species ; South China Sea ; Malaysia ; Sarawak ; Sabah ; Brunei Darussalam ; Hapalogenys analis ; Pomadasys auritus
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    Format: 224-242
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    Nutrient diagenesis in sediments of the South China Sea, Area II: Sabah, Sarawak, and Brunei Darussalam waters (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26403 | 23782 | 2019-04-11 06:41:16 | 26403 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2021-07-24
    Description: Study on nutrient diagenesis and physico-chemical characteristics of bottom sediments of the Sabah, Sarawak and Brunei Darussalam waters had been carried out under the ongoing SEAFDEC Collaborative Research Project. The results indicated that organically enriched offshore sediments consisted high levels of pore water nitrate and phosphate concentrations. For the whole study area, the levels of nitrate and phosphate concentrations in pore water were in the ranges of 0.05 to 77.12 µg at NO3--N/L and 0.07 to 13.13 µg at PO43--P/L, respectively. Upward diffusive fluxes of pore water nitrate widely changed in stations. At the nearshore area, the fluxes of pore water nitrate had an average of 26.5 mg at NO3--N/m2/d and were about one order of magnitude higher than those of phopsphate. However, phosphate upward fluxes were apparently high at deep areas off Sabah. Pore water ammonium concentrations were commonly very low but tended to be more accumulated at nearshore organically enriched areas. The ammonium concentrations for the whole study area ranged from non-detected level to 81.76 µg at N/L. The nearshore stations showed very high upward fluxes of ammonium, which were nearly 10 times higher than those of nitrate and phosphate. Sedimentary organic levels were comparatively high in two distinct regions; (I) a shallow nearshore region of Sarawak, and (II) a deep offshore region of Sabah and Brunei Darussalam. The sources of organic materials settled in Regions (I) and (II) were suggested to be derived from different origins. The Northeast monsoon can somewhat enhance organic accumulation in the nearshore region. Overall our results obtained from this study had been used to characterize the bottom sediments into three distinct regions and discussed for further fishery resource development and management.
    Keywords: Oceanography ; Sediment chemistry ; Phosphates ; Nitrates ; Sediment properties ; Biogeochemical cycle ; Fishery oceanography ; Nutrients (mineral) ; Diagenesis ; South China Sea ; Malaysia ; Sarawak ; Sabah ; Brunei Darussalam
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    Format: 111-128
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    Trace metals in surface sediment of the South China Sea, Area II: Sarawak, Sabah and Brunei (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26405 | 23782 | 2019-04-11 06:55:23 | 26405 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2021-07-24
    Description: The trace metals composition of surface sediment of the South China Sea off Sarawak, Sabah and Brunei were measured. Total metal concentrations in the 63 µm fraction are reported in this study. For the pre-monsoon cruise, the metal concentrations ranged between 1.01 – 13.0 µgg-1 Pb, 8.28 – 99.8 µgg-1 Cu, 27.8 – 137.0 µgg-1 Zn, 10.1 – 75.7 µgg-1 Cr, 175 – 1166 µgg-1 Mn, 0.83 – 4.57% and Fe 0.16 – 2.25%. The range of metal concentrations measured in the post-monsoon cruise varied between 1.63 – 18.9 µgg-1 Pb, 7.52 – 38.0 µgg-1 Cu , 14.4 – 105 µgg-1 Zn, 19.6 – 87.6 µgg-1 Cr, 157– 1890 µgg-1 Mn, 1.37 – 9.83 % Al and 0.51 – 4.47 % Fe. The distribution of metals in the sediment showed different patterns between the pre-monsoon and the post-monsoon periods. The Rajang River seems to be one of the major factors affecting the distribution of metals in the seabed off Sarawak.
    Keywords: Oceanography ; Sediment pollution ; Pollution monitoring ; Industrial wastes ; Heavy metals ; Pollution dispersion ; River discharge ; Trace metals ; Monsoons ; South China Sea ; Malaysia ; Sarawak ; Sabah ; Brunei Darussalam
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    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 146-155
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    PICES Press, Vol. 23, No. 2, Summer 2015 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/21572 | 121 | 2017-09-28 18:16:20 | 21572 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-15
    Description: The 2015 Inter-sessional Science Board meeting: A note from the Science Board Chairman (pp. 1-3); 2015 Symposium on “Effects of climate change on the world’s oceans” (pp. 4-7); 2015 Santos Joint BrOA and SOLAS Workshop (pp. 8-8); 2015 Santos Workshop on “Effects of climate change on the biologically-driven ocean carbon pumps” (pp. 9-11); 2015 Santos Workshop on “Upwelling systems under future climate change” (pp. 12-13); 2015 Santos Workshop on “Moving towards climate-ready fishery systems” (pp. 14-16); International Symposium on “Pacific salmon and steelhead production in a changing climate” (pp. 17-21); Mitigation of harmful algal blooms: The way forward (pp. 22-24); S-HAB contributions to FUTURE (pp. 25-27); A psychological perspective on “human well-being” (pp. 28-29); PICES calendar of events (pp-30-30); A good relationship between local communities and seafood diversity (pp. 31-31); Modeling the drift of marine debris generated by the 2011 tsunami in Japan (pp. 32-36); Opening of the Hakodate Research Center for Fisheries and Oceans (pp. 37-38); The state of the western North Pacific during the 2014/2015 cold season (pp. 39-40); The Bering Sea: Current status and recent trends (pp. 41-43); The warm Blob continues to dominate the ecosystem of the northern California Current (pp. 44-46); 2015 Pacific Ecology and Evolution Conference (pp. 47-48)
    Keywords: Ecology ; Environment ; Fisheries ; Information Management ; Oceanography ; Pollution ; Sociology ; climate change ; oceans ; ocean carbon pumps ; upwelling ; Pacific salmon ; steelhead ; harmful algal blooms ; human well-being ; seafood diversity ; marine debris ; Japan tsunami ; fisheries ; western North Pacific ; Bering Sea ; warm blob ; northern California Current ; eastern North Pacific
    Repository Name: AquaDocs
    Type: monograph
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    Format: application/pdf
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    PICES Press, Vol. 23, No. 1, Winter 2015 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/21569 | 121 | 2017-09-28 17:55:30 | 21569 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-15
    Description: PICES science in 2014: A note from the Science Board Chairman (pp. 1-5); 2014 PICES awards (pp. 6-8); Fisheries bycatch: Global issues and creative solutions (pp. 9-12); 2014 PICES Summer School: End-to-End models for marine resources management and research (pp. 13-17); Seabirds as early warning indicators of climate events in the Pacific (pp. 18-20); Japan launches a new, state-of-the-art training ship – the Oshoro Maru V (pp. 21-22); PICES calendar of events (pp. 23-23); Workshop W4 on “Networking ocean observatories around the North Pacific Ocean” (pp. 24-27); The impact of Japanese tsunami debris on North America (pp. 28-30); The state of the western North Pacific in the first half and warm season of 2014 (pp. 31-32); The Bering Sea: Current status and recent trends (pp. 33-35); The warm blob – Conditions in the northeastern Pacific Ocean (pp. 36-38); Changes in the Secretariat (pp. 39-46)
    Keywords: Ecology ; Environment ; Fisheries ; Information Management ; Oceanography ; fisheries ; bycatch ; end-to-end models ; seabirds ; early warning indicators ; ocean observatories ; North Pacific Ocean ; western North Pacific ; Bering Sea ; warm blob ; northeastern Pacific Ocean
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    Type: monograph
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    Format: application/pdf
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    PICES Advisory Report on the decline of Fraser River sockeye salmon Oncorhynchus nerka (Steller, 1743) in relation to marine ecology (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/21578 | 121 | 2017-09-28 19:50:26 | 21578 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-15
    Description: In the spring of 2010, the Government of Canada invited PICES to participate in a Commission of Inquiry into the Decline of Sockeye Salmon in the Fraser River by considering how marine ecology may have affected their abundance. A major objective that was achieved in this report was to assemble, within an eight week period, as comprehensive a summary as was possible of what is known about Fraser River sockeye salmon (Oncorhynchus nerka) in the ocean. While much of this effort involved summarizing information published in data/technical reports and the primary literature, where necessary, original data have been re-examined and new analyses conducted to fulfill the terms of the Statement of Work. The compilation provides a background of knowledge against which to judge what can be known regarding the two major questions posed by the Cohen Commission to PICES:-Can the decline in Fraser River sockeye in 2009 be explained by the conditions the fish experienced in the marine environment?-Is there any evidence for declines in marine productivity or changes in Fraser River sockeye distribution that can be associated with the 15-year gradual decrease in Fraser River sockeye productivity?
    Keywords: Ecology ; Environment ; Fisheries ; Oceanography ; advisory report ; Fraser River ; sockeye salmon ; Cohen Commission ; sockeye decline
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    PICES Press, Vol. 24, No. 1, Winter 2016 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/21573 | 121 | 2017-09-28 18:20:43 | 21573 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-15
    Description: PICES science in 2015: A note from the Science Board Chairman (pp. 1-7); 2015 PICES awards (pp. 8-10); Face to face with oceanographers: PICES outreach (pp. 11-13); An update on the FUTURE science program (pp. 14-15); International Scientific Symposium on “Harmful algal blooms and climate change” (pp. 16-17); International Scientific Conference on “Our common future under climate change” (pp. 18-19); PICES/ICES Workshop on “Modelling effects of climate change on fish and fisheries” (pp. 20-23); The mussel Mytilus galloprovincialis on Japanese tsunami marine debris (pp. 24-28); Moving towards more sustainable shrimp and tilapia aquaculture in Karawang, Indonesia (pp. 29-30); New leadership in PICES (pp. 31-21); Alexander S. Bychkov – Connecting regional organizations on a global scale (pp. 33-33); Japanese translation of “Guide to Best Practices for Ocean CO2 Measurements” (pp. 34-34); Global ocean carbon dioxide (CO2) uptake: Distribution and temporal variation (pp. 35-35); For the e-bookshelf: “Impacts of the Fukushima Nuclear Accident on Fish and Fishing Grounds” (pp. 36-37); PICES interns (pp. 38-38); PICES calendar of events (pp. 39-39); The state of the western North Pacific during the 2015 warm season (pp. 40-41); The Bering Sea: Current status and recent trends (pp. 42-45); The Blob (Part Three): Going, going, gone? (pp. 46-48)
    Keywords: Aquaculture ; Ecology ; Education ; Environment ; Fisheries ; Information Management ; Oceanography ; Pollution ; oceanography ; outreach ; harmful algal blooms ; climate change ; Japanese tsunami ; marine debris ; Mytilus galloprovincialis ; aquaculture ; Karawang ; Indonesia ; CO2 measurements ; CO2 uptake ; CO2 distribution ; Fukushima nuclear accident ; western North Pacific ; Bering Sea ; blob ; eastern North Pacific
    Repository Name: AquaDocs
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    PICES Press, Vol. 25, No. 1, Winter 2017 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/21575 | 121 | 2017-09-28 18:36:40 | 21575 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-15
    Description: PICES science in 2016: A note from the Science Board Chair (pp. 1-8); 2016 PICES awards (pp. 9-12); PICES calendar of events (pp. 13-13); Impressions of PICES from old friends (pp. 14-17); S-CCME Workshop W5, “Modeling effects of climate change on fish and fisheries (pp. 18-22); In memoriam: Professor Emeritus Paul J. Harrison (pp. 23-23); Workshop W9, “The role of the northern Bering Sea in modulating arctic environments” (pp. 24); A symposium to mark the 60th anniversary of Station Papa/Line P (pp. 28-29); To the interface and beyond: Results and legacy of SCOR Working Group 140 (pp. 30-31); Webcam monitoring and modeling of Japanese tsunami marine debris (pp. 32-35); Mapping patterns of marine debris in the main Hawaiian Islands using aerial imagery and spatial analysis (pp. 36-39); New leadership in PICES (pp. 40-44); PICES interns (pp. 45-45); The Bering Sea: Current status and recent trends (pp. 46-49); The state of the western North Pacific during the 2016 warm season (pp. 50-51)
    Keywords: Ecology ; Environment ; Fisheries ; Information Management ; Oceanography ; Pollution ; modeling ; climate change ; fisheries ; Station Papa ; Line P ; Japanese tsunami ; tsunami marine debris ; Hawaiian Islands marine debris ; Bering Sea ; western North Pacific
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
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    Report of Working Group 24 on Environmental Interactions of Marine Aquaculture (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/21581 | 121 | 2017-09-28 20:01:13 | 21581 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-15
    Description: This report is a summary of the activities that WG 24 undertook from 2009 to 2012. The Working Group, with the guidance of FIS and MEQ, refined the activities under the terms of reference so that each PICES member country with active Working Group members could contribute to the report. This refinement was required due to the different types of expertise needed to meet the three very different activities outlined in the terms of reference.Through topic sessions, workshops and targeted Working Group activities, different aspects of sustainable marine aquaculture research relevant to WG 24’s terms of reference were highlighted. Research activities in all PICES member countries focus on identifying aquaculture–environment interactions, whether to model the impacts or to minimize them through optimizing culture approaches, as well as on research related to disease identification and management.Based on the experience of WG 24 and the direction of PICES under its FUTURE science plan, some marine aquaculture issues and analysis can be more holistically addressed through expert groups that include consideration of anthropogenic stressor effects on the marine environment. Additionally, any future marine aquaculture-related PICES expert group should be more narrowly focused to not only allow for more directed work, but also to increase the likelihood of experts from all PICES member countries being able to participate and contribute.This report is composed of three sections: Assessing environmental interactions of marine aquaculture, marine aquaculture legislative frameworks and environmental interactions research, and pathogens of aquatic animals organized as country reports.
    Keywords: Aquaculture ; Environment ; Oceanography ; marine aquaculture ; legislative framework ; aquaculture-environmental interaction ; aquatic animal pathogens ; North Pacific Ocean
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    Report of Working Group 23 on Comparative Ecology of Krill in Coastal and Oceanic Waters around the Pacific Rim (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/21580 | 121 | 2017-09-28 19:56:36 | 21580 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-15
    Description: In October 2007, the PICES Working Group on Comparative Ecology of Krill in Coastal and Oceanic Waters around the Pacific Rim (WG 23) was established under the direction of the Biological Oceanography Committee. This report brings together reviews of the state of knowledge of Euphausia pacifica and Thysanoessa species in the six PICES member countries over the time period from 2008 to 2012. The chances to conduct euphausiid research varied amongst countries, but PICES scientists rose to the challenge and made the most of the opportunities available to them. From mining euphausiid data out of existing time-series data sets to conducting live euphausiid experiments (using the protocol available on the PICES website, http://www.pices.int/projects/Euphasiid/euphasiid.aspx), WG 23 members generated new and interesting data on euphausiids throughout the North Pacific.
    Keywords: Biology ; Ecology ; Environment ; Oceanography ; comparative ecology ; krill ; euphausiids ; Euphausia pacifica ; Thysanoessa species ; North Pacific Ocean ; euphausiid experiment protocol
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    PICES Press, Vol. 24, No. 2, Summer 2016 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/21574 | 121 | 2017-09-28 18:34:48 | 21574 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-15
    Description: The 2016 Inter-sessional Science Board meeting: A note from the Science Board Chairman (pp. 1-3); PICES at the 9th International Conference on Marine Bioinvasions (pp. 4-6); The ICES/PICES 6th International Zooplankton Production Symposium (pp. 7-12); PICES/ICES Workshop on “Use of zooplankton indicators to characterize state of pelagic ecosystems” (pp. 13-14); PICES/ICES Workshop on “ICES/PICES cooperative research initiative” (pp. 15-16); PICES/ICES Workshop on “Zooplankton as a potential harvestable resource” (pp. 17-17); PICES/ICES Workshop on “A hands-on introduction to time series analysis, visualization and inter-comparison of plankton survey data” (pp. 18-20); PICES/ICES Workshop on “Toward a taxonomically-comprehensive global reference database for DNA barcodes of marine zooplankton” (pp. 21-23); MSEAS 2016—Understanding marine socio-ecological systems (pp. 24-25); The Little Green Bucket’s 10,000 mile journey (pp. 26-27); A community needs assessment for coastal Guatemala (pp. 28-31); GlobalHAB – a new initiative in the HAB community (pp. 32-32); IMBER – Synthesis and the way forward (pp. 33-35); GLODAPv2: Data synthesis product published at CDIAC (pp. 36-37); PICES calendar of upcoming events (pp.38-38); Important dates (pp. 39-39); PEEC 2016 – A West Coast conference (pp. 43-45); The Blob is gone (pp. 46-47); The state of the western North Pacific during the 2015/2016 cold season (pp. 48-50); The Bering Sea: Current status and recent trends (pp. 51-54)
    Keywords: Biology ; Ecology ; Environment ; Information Management ; Oceanography ; Pollution ; Sociology ; marine bioinvasions ; zooplankton production ; pelagic ecosystems ; zooplankton taxonomy ; marine socio-ecological systems ; human dimension ; Japanese tsunami ; tsunami debris ; harmful algal blooms ; CO2 data synthesis ; blob ; eastern North Pacific ; western North Pacific ; Bering Sea
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    Report of the Study Group on Marine Pollutants (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/21583 | 121 | 2017-09-28 20:31:08 | 21583 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-15
    Description: This report does not provide a comprehensive overview of all pollution issues that are relevant to the PICES community. However, it does give input to the broader PICES community on:• some of the priority pollutants in the North Pacific Ocean as identified by scientists from PICES’ six member countries.• some of the promising indicator approaches or 'sentinel species' that are being used within the PICES community, or elsewhere, and could be used more widely across PICES member countries.• some of the opportunities to share technical information on logistical, analytical, and/or field study methods in support of improved and/or standardized methodologies that could be used by all PICES member countries.The ultimate objective of the SG-MP was to design a proposal (plan) for future PICES activities related to marine pollution.
    Keywords: Environment ; Oceanography ; Pollution ; marine pollutants ; North Pacific Ocean ; persistent bioaccumulative contaminants ; toxic contaminants ; hydrocarbons ; microplastics ; marine debris ; biological pollution
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    Report of the PICES/ICES Working Group on Forecasting Climate Change Impacts on Fish and Shellfish (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/21582 | 121 | 2017-09-28 20:20:34 | 21582 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-15
    Description: In 2008, the North Pacific Marine Science Organization (PICES) and the International Council for the Exploration of the Sea (ICES) approved the formation of an interdisciplinary Working Group on Forecasting Climate Change Impacts on Fish and Shellfish (WG-FCCIFS). This Working Group was designed to enagage the PICES and ICES scientific communities in an effort to discuss and assess our current understanding of the implications of climate change on marine fish and fisheries. The group was quite active, and the products of WG-FCCIFS include one major scientific symposium, a symposium volume and several peer reviewed journal articles. WG-FCCIFS’s primary accomplishments and research findings are described in this report. The group promoted research on climate change impacts on marine ecosystems by scientists in PICES and ICES member countries through coordinated communication, exchange of methodology, and organization of meetings to discuss and publish results. In collaboration with relevant expert groups in PICES and ICES, WG-FCCIFS developed frameworks and methodologies for projecting the impacts of climate change on marine ecosystems, with particular emphasis on shifts in the distribution, abundance and production of commercial fish and shellfish. WG-FCCIFS members met to review the results of designated case studies to test methods. Given the limitations of our forecasts, they also explored techniques for estimating and communicating uncertainty in forecasts and strategies for research and management under climate change scenarios. As the 3-year term for WG-FCCIFS approached, it was clear that PICES and ICES were well positioned to serve as world leaders in advancing science on assessments of climate change impacts on marine ecosystems. This recognition led to the formation of the ICES Strategic Initiative on Climate Change Effects on Marine Ecosystems (SICCME), referred to as the Section on Climate Change Effects on Marine Ecosystems (S-CCME) within PICES.
    Keywords: Atmospheric Sciences ; Ecology ; Environment ; Fisheries ; Oceanography ; climate change impact ; fish and fisheries ; marine ecosystems ; commercial fish and shellfish
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    Format: application/pdf
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    PICES Press, Vol. 25, No. 2, Summer 2017 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/21576 | 121 | 2017-09-28 18:38:17 | 21576 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-15
    Description: 2017 Inter-sessional Science Board Meeting (pp. 1-4); Highlights from the FUTURE SSC’s 3rd Inter-sessional Meeting (pp. 5-6); WG 35 (WG-NPESR3) meets inter-sessionally in Honolulu (pp. 7-8); PICES/ICES International Symposium on “Drivers of dynamics of small pelagic fish resources” (pp. 9-12); SPF Workshop on “Environmental control of spatio-temporal changes in population size, distribution and migration of small pelagic fish in an ecosystem context” (pp. 13-15); SPF Workshop on “Methods and techniques for sampling and assessing small pelagic fish populations” (16-17); SPF Workshop on “Modeling migratory fish behavior and distribution” (pp. 18-19); SPF Workshop on “Recent advances in the life stage ecophysiology of small pelagic fish” (pp. 20-21); SPF Workshop on “Remote sensing and ecology of small pelagics” (pp. 22-23); SPF Workshop on “Simulation approaches of forage fish populations for management strategy evaluations” (pp. 24-26); An ICES/PICES Workshop on “Understanding the impacts and consequences of ocean acidification for commercial species and end-users” (pp. 27-28); The 26th International Hydrological Program (IHP) training course on “Coastal vulnerability andfreshwater discharge” (pp. 29-30); PICES/MAFF MarWeb project collaborates with the United Nations program on the development of Marine Protected Areas in Guatemala (pp. 31-34); Program of topic sessions and workshops at PICES-2017 (pp. 35-35); The 3rd PICES/ICES Early Career Scientist Conference takes place in Busan, Korea (pp. 36-39); The Bering Sea: Current status and recent trends (pp. 40-42); The state of the western North Pacific during the 2016 warm season (pp. 43-44)
    Keywords: Aquaculture ; Conservation ; Ecology ; Environment ; Fisheries ; Information Management ; Oceanography ; Sociology ; ecosystem status report ; small pelagic fish ; ocean acidification ; coastal vulnerability ; freshwater discharge ; marine protected areas ; Guatemala ; human dimension ; human well-being ; Bering Sea ; western North Pacific
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    Ortho-phosphate in the sea water of the South China Sea. Area II: Sabah, Sarawak and Brunei Darussalam (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26400 | 23782 | 2019-04-10 08:34:23 | 26400 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2021-07-24
    Description: The distribution of ortho-phosphate in the South China Sea off Sarawak, Sabah and Brunei Darussalam waters was studied in the SEAFDEC Interdepartmental Collaborative Research Survey: Area II. The samples were collected by M.V. SEAFDEC on 8 July to 3 August 1996 (pre monsoon period) and 1 to 24 May 1997 (post monsoon period). Seventy-nine stations were established in this study. The average concentration of ortho-phosphate of the pre monsoon period at 0-1 meter, 10 meter, 20 meter, 50 meter, 100 meter and 200 meter, 500 meter, 1000 meter and 1500 meter depth of the third survey cruise were 0.14 μM, 0.09 μM, 0.10 μM, 0.09 μM, 0.50 μM, 0.90 μM, 1.94 μM, 2.59 μM and 3.10 μM respectively. The average concentration of ortho-phosphate of the post monsoon period at 0-1 meter, 10 meter, 20 meter, 50 meter, 100 meter, 200 meter, 500 meter, 1000 meter and 1500 meter depth were 0.24μM, 0.28 μM, 0.20 μM, 0.25 μM, 1.15 μM and 2.27 μM, 4.13 μM, 5.19 μM and 5.41 μM respectively. The ortho-phosphate levels were low in the surface water and increase with depth. The results indicated that the deep water of the study area is very rich in phosphate.
    Keywords: Oceanography ; Biological production ; Orthophosphate ; Nutrients (mineral) ; South China Sea ; Malaysia ; Sarawak ; Sabah ; Brunei Darussalam
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    Distribution, abundance and biological studies of economically important fishes in the South China Sea, Area II: Sarawak, Sabah and Brunei Darussalam waters (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26418 | 23782 | 2019-04-10 08:23:26 | 26418 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2021-07-24
    Description: The studies were carried out between 9th July and 3rd August 1996 (3rd cruise) and 30th April and 30th May, 1997 (4th cruise) in the Exclusive Economic Zone of Sarawak and the western part of Sabah. The species distribution, abundance, composition and length-weight relationships of some commercially important fish were investigated and compared for both cruises. The results indicate that the overall catch rate ranged from 3.5 to 194 kg/hr and averaged at 55.9 kg/hr during the 3rd cruise. For the 4th cruise, it ranged from 10.9 to 90.5 kg/hr and averaged at 50.2 kg/hr. During the 3rd cruise, 46.9% of the catch were dominated by demersal fish followed by 41.6% trash fish, 7.8% pelagic fish and 3.1% cephalopod. Priacanthidae was the most dominant family, which made up of 14.1% of the catch followed by Nemipteridae (10.8%), Carangidae (5.0%), Lutjanidae (3.7%) and Mullidae (2.1%). The ten most dominant species found during the 3rd cruise were 1. Priacanthus macracanthus (13.2%), 2. Nemipterus bathybius (3.3%), 3. Abalistes stellaris (2.8%), 4. Arius spp.(2.5%), 5. N. nematophorus (2.2%), 6. Gymnocranius griseus (1.9%), 7. N. marginatus (1.7%), 8. Sepia spp. (1.7%), 9. Decapterus spp. (1.6%) and 10. Carcharhinus spp (1.3%). During the 4th cruise, the family Nemipteridae (12.7%) formed the most dominant fish family followed by Carangidae (8.7%), Mullidae (7.1%), Lutjanidae (4.9%) and Priacanthidae (2.2%). The ten most dominant species were: 1. Loligo spp. (5.7%), 2. Nemipterus bathybius (4.2%), 3. Abalistes stellaris (4.0%), 4. Upeneus moluccensi (3.8%), 5. Nemipterus nemurus (3.8%), 6. Gymnocranius griseus (3.2%), 7. Carangoides malabaricus (3.2%), 8. Plectorhynchus pictus (3.1%), 9. Upeneus bensasi (2.4%) and 10. Arius spp. (1.8%). The morphometric study shows that the population of fish are normally distributed.
    Keywords: Fisheries ; Oceanography ; Marine fish ; Fishery surveys ; Pelagic fisheries ; Demersal fisheries ; Commercial species ; Fishery biology ; South China Sea ; Malaysia ; Sarawak ; Sabah ; Brunei Darussalam
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    Stock assessment by hydro-acoustic method in the South China Sea Area II: Sabah, Sarawak, Brunei Darussalam (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26417 | 23782 | 2019-04-10 08:18:26 | 26417 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2021-07-24
    Description: Acoustic resource surveys were conducted by M/V SEAFDEC off Sarawak, Brunei and the east coast of Sabah from July 10 to August 2, 1996 for pre-NE monsoon season and from May 1 to May 24, 1997 for post-NE monsoon season, using the scientific echo sounder FQ-70, developed by Furuno Electric Co. Japan. Collected raw values of backscattering strength (SV) from the 200 kHz transducer were carefully corrected and filtered to eliminate the influence of plankton. These corrected SV values were divided into pelagic and demersal fish, and were used to estimate the biomass of pelagic and demersal multi-species in the limited coastal waters off Sarawak. Decapterus macrosoma for pelagic fish and Priacanthus macracanthus for demersal fish were selected as representative species, based on the fisheries statistics, landing place survey, and research vessel survey in order to estimate biomass. The standard length (SL) and weight of these representative species were obtained from research vessel survey and supported by previous literatures. Target strength (TS) of these representative species were calculated using formula TS = 20 log(SL) - 66. The distribution of the SV values for pelagic fish showed distinct difference between pre and post Northeast (NE) monsoon seasons along the coastal waters. Greater concentrations of SVs were observed from depth 100 and 200m on the continental shelf along the survey area for both the seasons. The estimated biomass of multi-species fish off coastal Sarawak waters for the pre and post NE monsoon seasons was 120,000 tonnes (100,000 tonnes of pelagic fish and 2x105 tonnes of demersal fish) and 470,000 tonnes (360,000 tonnes of pelagic fish and 110,000 tonnes of demersal fish), respectively. Estimated Maximum Sustainable Yield (MSY) was 83,000 tonnes for pelagic fish and 31,000 tonnes for demersal fish when using Cadima’s model.
    Keywords: Fisheries ; Oceanography ; Marine fisheries ; Pelagic fisheries ; Fishery surveys ; Stock assessment ; Demersal fisheries ; Echo surveys ; Fishery resources ; South China Sea ; Malaysia ; Sarawak ; Sabah ; Brunei Darussalam
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    Physical characteristics of watermass in the South China Sea, Area II: Sarawak, Sabah and Brunei Darussalam waters (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26398 | 23782 | 2019-04-08 06:33:50 | 26398 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2021-07-24
    Description: This study provides new information on the physical characteristics of water masses in Sabah and Sarawak waters. The aim was to determine the effect of Southwest (SW) monsoon on the variability of water masses, in Sabah and Sarawak waters. Physical characteristics data were obtained using an instrument called “Integrated Conductivity Temperature Depth” (iCTD), during the third (July 1996) and fourth (May 1997) cruises of the MV SEAFDEC research vessel, conducted during the SW monsoon season. Vertical distributions and profiles of temperature, salinity and density were analyzed and their variations between the two cruises compared. It is concluded that there were no great variations of temperature, salinity and density values in the study area, during both cruises. This is because both cruises were conducted during the SW monsoon season. However, variations of temperature, salinity and density values were observed between shallow and deep waters, as well as coastal and offshore waters. Based on their vertical distributions and profiles obtained during the two cruises, water properties in shallow waters were found to vary slightly from the deeper ones. As a result, in the southern tip of the South China Sea, where the water was shallow, its properties here differed a little from the rest of the study area. This was due to the pronounced mixing effect of surface waves in shallow waters. At the same time, lower salinity and consequently, lower density values were detected in coastal waters, resulting from of the influx of freshwater from Sabah and Sarawak rivers during this monsoon season.
    Keywords: Oceanography ; Salinity data ; Water masses ; Physical oceanography ; Density ; Temperature data ; Vertical profiles ; Monsoons ; South China Sea ; Sarawak ; Malaysia ; Sabah
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    Distribution of dinoflagellate cysts in the surface sediment of South China Sea: Area 2. Off Sabah, Sarawak and Brunei Darussalam (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26415 | 23782 | 2019-04-10 08:04:47 | 26415 | Southeast Asian Fisheries Development Center, Training Department
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    Publication Date: 2021-07-24
    Description: The surface sediment samples of 47 stations in Sabah, Sarawak and Brunei Darussalam waters were collected by M.V. SEAFDEC for identification and quantitative analysis of benthic dinoflagellate cysts. A total of 18 dinoflagellate cyst belonging to family Gonyaulacaceae, Pyrophacaceae and Protoperiniaceae were identified. The cyst density in this area was in a range of 6 to 278 cysts/cm3 with Spiniferites bulloideus was the dominant species. Cysts of harmful species were not observed in this study but a small number of Alexandrium cyst-like was found at a station near coastal area of Sarawak.
    Keywords: Oceanography ; Biological surveys ; Cysts ; Sediment analysis ; Benthos ; South China Sea ; Malaysia ; Sarawak ; Sabah ; Brunei Darussalam ; Protoperiniaceae ; Zoomastigophora ; Spiniferites bulloideus ; Gonyaulacaceae ; Pyrophacaceae
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    Temporal changes in the abundance of macrobenthos in the South China Sea, Area II: Sarawak, Brunei and Sabah (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26416 | 23782 | 2019-04-10 08:09:08 | 26416 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2021-07-24
    Description: The macrobenthic fauna in the South China Sea (Sarawak, Brunei and Sabah) was surveyed during pre NE monsoon (4 Jul.- 8 Aug. 1996) and post NE monsoon (25 Apr.-31 May 1997). Over 90 species were collected by Smith-McIntyre grab of 47 stations. The overall density of macrobenthic fauna in Sarawak, Brunei and Sabah area was 100 ind. m-2 on average in the pre NE monsoon and 167 ind.m-2 on average in the post NE monsoon. Most species were carnivore/scavengers followed by deposit-feeder and fewer suspension-feeder or herbivores both in the pre and post NE monsoon. There was a marked seasonal variation in faunal composition between the pre and post NE monsoon. During the pre NE monsoon polychaeta was the most abundance followed by crustacea while during the post NE monsoon crustacea was the most abundance followed by polychaete and the remaining groups of macrobenthic fauna which were poorly represented in the survey areas both in the pre and post NE monsoon periods. All the diversity indices decline from the pre to post NE monsoon.
    Keywords: Fisheries ; Oceanography ; Species diversity ; Abundance ; Population density ; Zoobenthos ; South China Sea ; Malaysia ; Sarawak ; Sabah ; Brunei Darussalam ; Polychaeta ; Crustacea
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    Kind, abundance and distribution of the fish larvae in the South China Sea, Area II: Sarawak, Sabah and Brunei Darussalam (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26413 | 23782 | 2019-04-10 07:55:08 | 26413 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2021-07-24
    Description: Fish larvae samples were obtained from 79 stations in South China Sea of the Sarawak , Brunei and Sabah during the pre northeast monsoon season (August - September 1996) and the post northeast monsoon (April - May 1997). The standard larvae net and bongo net were used for the surface and oblique sampling. The specimens were identified which comprise of 112 families and 186 species of fish larvae observed from both cruises. For the pre northeast monsoon sampling there were 5,156 individuals observed from 86 families and 125 species in the surface horizontal haul and 16,277 individuals from 96 families and 149 species in the oblique haul. The post northeast monsoon collection showed 6,595 individuals from 79 families and 114 species collected in the surface horizontal hauls and 24,450 individuals from 94 families and 158 species observed in the oblique hauls. From the surface horizontal sampling, the abundant larvae observed were Stolephorus sp., Sardinella sp., Upeneus sp., Myripristis sp., Holocentrus sp., Gobiidae, Decapterus sp. and Diaphus sp. Specimens from the oblique hauls, Gobiidae, Bregmaceros rarisquamosus, Nemipterus sp., Stolephorus sp. and Callionymus sp. were the most species observed abundant in the collection. The mesopelagic fish larvae, Hygophum sp., Myctophum sp., Pollichthys sp. and Lampadena sp. were found abundant in the oblique specimens in the deep sea stations. The larvae were collected in more abundant during the early morning, night time and cloudy day sampling.
    Keywords: Fisheries ; Oceanography ; Marine fish ; Distribution records ; Quantitative distribution ; Check lists ; Biomass ; Fish larvae ; Fishery resources ; South China Sea ; Malaysia ; Sarawak ; Sabah ; Brunei Darussalam ; Stolephorus ; Gobiidae ; Upeneus ; Myripristis ; Decapterus ; Sardinella ; Holocentrus ; Diaphus
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    Biomass estimation by hydro-acoustic methods in the South China Sea, Area II: Sarawak, Sabah and Brunei Darussalam (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26419 | 23782 | 2019-04-10 08:26:18 | 26419 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2021-07-24
    Description: The abundance of fisheries resources and their structure off shore of Sarawak, Sabah and Brunei Darussalam were investigated under the SEAFDEC Collaborative Research Survey. Hydro-acoustic surveying by using a scientific echo sounder model FQ-70 was conducted for estimating the fish abundance and biomass. Two survey cruises were carried out by M.V. SEAFDEC during 10 July to 2 August 1996 and 1 to 24 May 1997 for pre and post-northeast monsoon seasons, respectively. The scientific echo-sounder was equipped with an echo-integrator and two quasi-ideal beam transducers with operating frequencies of 50 and 200 kHz. For pre and post-northeast monsoon season was 1,717,852 tons and 956,397 tons, respectively. The maximum fish abundance were found at the water depth between 100 to 200 m was 92.4% and 49.8% of total abundance for pre and post-northeast monsoon season, respectively.
    Keywords: Fisheries ; Oceanography ; Marine fisheries ; Fishery surveys ; Abundance ; Stock assessment ; Echo surveys ; Fishery resources ; South China Sea ; Malaysia ; Sarawak ; Sabah ; Brunei Darussalam
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    Report of Working Group 26 on Jellyfish Blooms around the North Pacific Rim: Causes and Consequences (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/26953 | 42 | 2020-01-27 18:01:55 | 26953 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-24
    Keywords: Biology ; Ecology ; Oceanography
    Repository Name: AquaDocs
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    Format: application/pdf
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    Conditions promoting extreme Pseudo-nitzschia events in the eastern Pacific but not the western Pacific (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/26955 | 42 | 2020-01-28 00:10:25 | 26955 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-24
    Keywords: Biology ; Ecology ; Oceanography
    Repository Name: AquaDocs
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    Format: application/pdf
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    Ocean acidification and deoxygenation in the North Pacific Ocean (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/26958 | 42 | 2020-01-27 18:23:14 | 26958 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-24
    Keywords: Atmospheric Sciences ; Chemistry ; Earth Sciences ; Environment ; Oceanography
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 116
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    The effects of marine debris caused by the Great Japan Tsunami of 2011 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/26959 | 42 | 2020-01-27 18:28:45 | 26959 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-24
    Keywords: Environment ; Oceanography ; Pollution
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 270
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    PICES Press, Vol. 27, No. 1, Winter 2019 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/26962 | 42 | 2020-01-28 18:05:22 | 26962 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-24
    Description: PICES science in 2017: Notes from the Science Board Chair. 2018 PICES awards. ECCWO-4 Workshop on “Intercomparison of fisheries and marine ecosystem models”. The PICES–MAFF-sponsored Project on “Building capacity for coastal monitoring by local small-scale fishers”. Northeast Pacific juvenile salmon summer surveys in 2018. 2018 PICES Summer School on “Coastal ocean observatory science”. Working Group 37 organizes a Practical Workshop on “Production methodologies and measurements for in situ zooplankton”. PICES in Ireland: ADRIFT marine bioinvasions study presented at NEOBIOTA 2018. The Bering Sea: Current status and recent trends. The Northeast Pacific: Current status and recent trends. The western North Pacific during the 2018 warm season. In memory of Boris Kotenev. New leadership in PICES.
    Keywords: Biology ; Chemistry ; Fisheries ; Oceanography
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    Format: application/pdf
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    PICES Press, Vol. 27, No. 2, Summer 2019 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/26963 | 42 | 2020-01-28 18:10:05 | 26963 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-24
    Description: 2019 Inter-sessional Science Board Meeting. 2019 Pacific Ecology and Evolution Conference. Highlights from the FUTURE SSC’s 5th Inter-sessional Meeting. Working together at the 4th GOA-ON International Workshop. Scientific dialogue between the ocean and the atmosphere. SOLAS Early-Career Scientist Day. FishGIS: Incorporating community-based research principles. Future Oceans2 IMBeR Open Science Conference. First global planning meeting for the United Nations Decade of Ocean Science for Sustainable Development. In memoriam: Dr. Olga Nikolaevna Lukyanova. Topic sessions and workshops at PICES-2019. Upcoming Shellfish – Resources and Invaders of the North symposium. The Northeast Pacific: Current status and recent trends. The Bering Sea: Current status and recent trends. The western North Pacific during the 2018/2019 cold season.
    Keywords: Biology ; Chemistry ; Ecology ; Environment ; Oceanography
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    Format: application/pdf
    Format: 39
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    PICES Press, Vol. 26, No. 2, Summer 2018 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/26961 | 42 | 2020-01-28 18:00:59 | 26961 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-24
    Description: 2018 Inter-sessional Science Board Meeting. 2018 Pacific Ecology and Evolution Conference. Applying global experiences to regional assessments: A workshop on the Protection of Vulnerable Marine Ecosystems. Activities of the joint PICES/ICES/PAME WG on an Integrated Ecosystem Assessment for the Central Arctic Ocean. In memoriam: Dr. Mary N. Arai. Highlights from the FUTURE SSC’s 4th Inter-sessional Meeting. PICES Interns. A new PICES MAFF-sponsored project: Building capacity for coastal monitoring by small-scale fishers. Scientists from PICES and Mexico meet to discuss closer ties in North Pacific research. An International Symposium on “Understanding changes in transitional areas of the Pacific”. The 4th International Symposium on “The effects of climate change on the world’s oceans”. ECCWO-4 Workshop on “Communicating and responding to climate change”. ECCWO-4 Workshop on “Advances in Earth System Models (ESMs) for marine applications”. ECCWO-4 Workshop on “Exploring potential ocean-based solutions to climate change impacts on marine biodiversity and ecosystem services”. ECCWO-4 Workshop on “Climate change adaptation of fisheries and aquaculture: examples of field projects supporting countries and communities”. ECCWO-4 Workshop on “Climate change and fishing communities: Interactions with environmental conservation, sustainable livelihoods and food security”. ECCWO-4 Workshop on “Utilizing bioenergetics measurements and modeling to evaluate climate change effects on marine species and ecosystems”. ECCWO-4 Workshop on “What do seabirds reveal about the effects of climate change on the world’s oceans?”. ECCWO-4 Workshop on “Connecting climate, ocean and ecosystem observation – Ocean observation futures”. ECCWO-4 Workshop on “Vulnerability of Low Elevated Coastal Zones (LECZ) to SLR in changing oceans”. ECCWO-4 Workshop on “Quantifying thresholds in driver-response relationships to identify reference points”. The Bering Sea: Current status and recent trends. The Northeast Pacific: Current status and recent trends. The western North Pacific during the 2017/2018 cold season. Topic sessions and workshops at PICES-2018. Progress in Oceanography Special Commemorative Issue.
    Keywords: Biology ; Chemistry ; Fisheries ; Oceanography
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    PICES Press, Vol. 28, No. 1, Winter 2020 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/26964 | 42 | 2020-01-28 18:17:52 | 26964 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-24
    Description: PICES science in 2019: Notes from the Science Board Chair. 2019 PICES awards. Working Group 37 organizes Phase 2 of a Practical Workshop. Communicating science. Integrating biological research, fisheries science and management of Pacific halibut and other widely distributed fish species across the North Pacific. Two decades of the North Pacific CPR program. PICES calendar of events for 2020. PICES/ICES collaborative research initiative. PICES/NPFC collaborative research. The 2019 International Gulf of Alaska Expedition. GlobalHAB: Evaluating, reducing and mitigating the cost of Harmful Algal Blooms. PICES on the cloud. New leadership in PICES. PICES Interns. PICES Special Project: Sea turtle ecology in relation to environmental stressors in North Pacific regions. Regional Consultative and Planning Workshop towards the UN Decade of Ocean Science for Sustainable Development. Towards an integrated approach to understanding ecosystem predictability in the North Pacific. Shellfish –Resources and invaders of the North. Highlights of the 2019 FAO International Symposium on Fisheries Sustainability. The Bering Sea: Current status and recent trends. Copepod responses to, and recovery from, the recent marine heatwave in the Northeast Pacific . The western North Pacific during the 2019 warm season. Northeast Pacific juvenile salmon summer surveys in 2019.
    Keywords: Biology ; Chemistry ; Ecology ; Environment ; Oceanography
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    Format: application/pdf
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    Report of Working Group 29 on Regional Climate Modeling (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/26956 | 42 | 2020-01-27 18:15:09 | 26956 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-24
    Keywords: Atmospheric Sciences ; Chemistry ; Ecology ; Environment ; Oceanography
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 177
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    PICES Press, Vol. 26, No. 1, Winter 2018 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/26960 | 42 | 2020-01-28 18:10:56 | 26960 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-24
    Description: PICES science in 2017: A note from the Science Board Chair. 2017 PICES awards. Capacity building: PICES scientists reach out to the next generation of oceanographers in Vladivostok. A MONITOR/TCODE Workshop on “The role of the northern Bering Sea in modulating the Arctic II”. New leadership in PICES. PICES Interns. An unusual gelatinous plankton event in the NE Pacific: The Great Pyrosome Bloom of 2017. Building international partnerships to enhance science-based ecosystem approaches. The Bering Sea: Current status and recent trends. The state of the western North Pacific during the 2017 warm season. Ocean acidification and carbon dioxide uptake in the global ocean. In remembrance of Dr. William T. Peterson. Call for Papers - William Peterson Commemorative Issue. Global Ocean Observing System – Biology and Ecosystems Panel report. OceanObs’19 call for Community White Paper abstracts. Calendar of events.
    Keywords: Biology ; Chemistry ; Environment ; Fisheries ; Oceanography
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    Format: application/pdf
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    PICES Press, Vol. 15, No. 2, July 2007 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/1120 | 121 | 2011-09-29 21:06:36 | 1120 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-05
    Description: Contents [Individual sections are downloadable from the official URL link listed below]: PICES Science in 2007 (pdf, 0.1 Mb) 2007 Wooster Award (pdf, 0.1 Mb) FUTURE - A milestone reached but our task is not done (pdf, 〈 0.1 Mb) International symposium on "Reproductive and Recruitment Processes of Exploited Marine Fish Stocks" (pdf, 0.1 Mb) Recent results of the micronekton sampling inter-calibration experiment (pdf, 0.1 Mb) 2007 PICES workshop on "Measuring and monitoring primary productivity in the North Pacific" (pdf, 0.1 Mb) 2007 Harmful Algal Bloom Section annual workshop events (pdf, 0.1 Mb) A global approach for recovery and sustainability of marine resources in Large Marine Ecosystems (pdf, 0.3 Mb) Highlights of the PICES Sixteenth Annual Meeting (pdf, 0.4 Mb) Ocean acidification of the North Pacific Ocean (pdf, 0.3 Mb) Workshop on NE Pacific Coastal Ecosystems (2008 Call for Salmon Survival Forecasts) (pdf, 0.1 Mb) The state of the western North Pacific in the first half of 2007 (pdf, 0.4 Mb) PICES Calendar (pdf, 0.4 Mb) The Bering Sea: Current status and recent events (pdf, 0.3 Mb) PICES Interns (pdf, 0.3 Mb) Recent trends in waters of the subarctic NE Pacific (pdf, 0.3 Mb) Election results at PICES (pdf, 0.2 Mb) A new PICES award for monitoring and data management activities (pdf, 〈 0.1 Mb)
    Description: ISSN: 1195-2512
    Keywords: Oceanography ; Information Management ; North Pacific Ocean ; marine research ; micronekton sampling ; ocean acidification ; salmon ; Bering Sea ; subarctic waters ; large marine ecosystems
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    PICES Press, Vol. 14, No. 2, July 2006 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/1157 | 121 | 2011-09-29 21:02:41 | 1157 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-06
    Description: The 2006 inter-sessional Science Board and Governing Council meeting: A note from the Chairman (pdf, 0.1 Mb) Future Integrative Science Program – Progress report (pdf, 0.2 Mb) Big-picture synthesis requires understanding the small and "in-between" stuff - A summary of the CCCC Synthesis Symposium (pdf, 0.4 Mb) PICES Calendar (pdf, 0.4 Mb) Integration of ecological indicators for the North Pacific with emphasis on the Bering Sea (pdf, 0.2 Mb) Time series of the Northeast Pacific: A symposium to mark the 50th anniversary of Line-P (pdf, 0.1 Mb) PICES hosts an ESSAS workshop in St. Petersberg, Russia (pdf, 0.2 Mb) Professor Mikhail N. Koshlyakov (pdf, 0.5 Mb) The state of the western North Pacific in the second half of 2005 (pdf, 0.8 Mb) Recent trends in waters of the subarctic NE Pacific (pdf, 0.2 Mb) Unusual invertebrates and fish observed in the Gulf of Alaska, 2004-2005 (pdf, 0.1 Mb) The Bering Sea: Current status and recent events (pdf, 0.2 Mb) The Year of the Euphausiid (pdf, 0.01 Mb) Michio J. Kishi awarded 2005 Uda Prize by the Japan Society of Fisheries Oceanography (pdf, 0.03 Mb)
    Description: ISSN: 1195-2512
    Keywords: Oceanography ; Information Management ; North Pacific Ocean ; marine research ; micronekton sampling ; ocean acidification ; salmon ; Bering Sea ; subarctic waters ; large marine ecosystems
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    PICES Press, Vol. 14, No. 1, January 2006 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/1158 | 121 | 2011-09-29 21:03:06 | 1158 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-06
    Description: The state of PICES science - 2005 (pdf, 0.2 Mb) 2005 Wooster Award (pdf, 0.4 Mb) Korea and U.S. federate metadata collection (pdf, 0.3 Mb) PICES Interns (pdf, 0.3 Mb) Studies on long-term variation of ocean ecosystem / climate interactions based on the Odate collection (pdf, 0.2 Mb) Hokkaido University Fisheries & Oceanographic Database CD-ROM (pdf, 0.2 Mb) Workshop on sardine and anchovy fluctuations (pdf, 0.1 Mb) Photo highlights of PICES XIV (pdf, 0.4 Mb) Workshop on SEEDS-II (pdf, 0.2 Mb) NPAFC-PICES joint symposium "The status of Pacific salmon and their role in North Pacific marine ecosystems" (pdf, 0.2 Mb) PICES Calendar (pdf, 0.2 Mb) New Chairman of the PICES Fishery Science Committee (pdf, 0.1 Mb) The state of the western North Pacific in the first half of 2005 (pdf, 0.4 Mb) Latest and upcoming PICES publications (pdf, 0.4 Mb) Recent trends in waters of the subarctic NE Pacific (pdf, 0.2 Mb) The Bering Sea: Current status and recent events (pdf, 0.1 Mb) PICES and GLOBEC to sponsor workshop on sub-arctic seas (pdf, 0.1 Mb) Professor Mikhail N. Koshlyakov - 75 (pdf, 0.1 Mb) Obituary - Dr. Al Tyler (pdf, 0.1 Mb)
    Keywords: Oceanography ; Information Management ; North Pacific Ocean ; marine research ; micronekton sampling ; ocean acidification ; salmon ; Bering Sea ; subarctic waters ; large marine ecosystems
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    PICES Press, Vol. 4, No. 2, July 1996 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/1177 | 121 | 2010-12-14 16:08:12 | 1177 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-06
    Description: ISSN: 1195-2512
    Keywords: Oceanography ; Information Management ; North Pacific Ocean ; marine research ; micronekton sampling ; ocean acidification ; salmon ; Bering Sea ; subarctic waters ; large marine ecosystems
    Repository Name: AquaDocs
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    PICES Press, Vol. 2, No. 2, July 1994 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/1181 | 121 | 2010-12-14 16:08:22 | 1181 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-06
    Description: ISSN: 1195-2512
    Keywords: Oceanography ; Information Management ; North Pacific Ocean ; marine research ; micronekton sampling ; ocean acidification ; salmon ; Bering Sea ; subarctic waters ; large marine ecosystems
    Repository Name: AquaDocs
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    PICES Press, Vol. 11, No. 1, January 2003 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/1164 | 121 | 2011-09-29 21:03:23 | 1164 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-06
    Description: Editorial and Contents The state of PICES science - 2002 Second annual Wooster Award to Yutaka Nagata Qingdao Open Science Meeting: A major landmark for GLOBEC GLOBEC OSM Session Highhlights PICES/GLOBEC Data Management Workshop PICES and GLOBEC modelling Some personal impressions of the GLOBEC OSM Photo highlights of PICES XI and GLOBEC OSM PICES Climate Change and Carrying Capacity (CCCC) Integration Workshop PICES/CLIVAR Workshop on Climate Variability in the Pacific and its impact on the marine ecosystem IGBP/SCOR Open Science Meeting on Ocean Biogeochemistry and Ecosystem Analysis Subarctic Ecosystem Response to Iron Enrichment Study (SERIES): eastern subarctic Pacific in July 2002 Introducing the GLOBEC International Project Office / GLOBEC Calendar 2003 Introducing the PICES Secretariat PICES Calendar
    Description: ISSN: 1195-2512
    Keywords: Oceanography ; Information Management ; North Pacific Ocean ; marine research ; micronekton sampling ; ocean acidification ; salmon ; Bering Sea ; subarctic waters ; large marine ecosystems
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    PICES-GLOBEC International Program on Climate Change and Carrying Capacity: Summary of the 1998 MODEL, MONITOR and REX Workshops, and Task Team Reports. (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/1321 | 121 | 2011-09-29 20:45:24 | 1321 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-07
    Description: This volume summarizes the results of three workshops organized by the PICES-GLOBEC Climate Change and Carrying Capacity Program that were held just prior to the PICES Seventh Annual Meeting in Fairbanks, Alaska, in October 1998. These workshops represent the efforts of the REX, MODEL, and MONITOR Task Teams to integrate the results of national GLOBEC and GLOBEC-like programs to arrive at a better understanding of the ways in which climate change affects North Pacific ecosystems. (PDF contains 91 pages)
    Description: ISSN: 1198-273X
    Keywords: Oceanography ; North Pacific Ocean
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    PICES Climate Change and Carrying Capacity Workshop on the Development of Cooperative Research in Coastal Regions of the North Pacific, October 17-18, 1997, Pusan, Republic of Korea (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/1323 | 121 | 2011-09-29 20:45:58 | 1323 | North Pacific Marine Science Organization (PICES)
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    Publication Date: 2021-07-07
    Description: (PDF contains 53 pages)
    Description: North Pacific Marine Science Organization (PICES)
    Keywords: Oceanography
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    Science Plan, Implementation Plan (Report of the PICES-GLOBEC International Program on Climate Change and Carrying Capacity) (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/1329 | 121 | 2011-09-29 20:44:55 | 1329 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-07
    Description: Describes the PICES-GLOBEC International Program on Climate Change and Carrying Capacity (PDF contains 60 pages)
    Description: North Pacific Marine Science Organization (PICES)
    Description: ISSN: 1198-273X
    Keywords: Oceanography
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    PICES-GLOBEC International Program on Climate Change and Carrying Capacity (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/1258 | 121 | 2011-09-29 20:54:22 | 1258 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-06
    Description: Introduction [pdf, 0.27 MB]Methods [pdf, 0.15 MB]Results and discussion [pdf, 2.1 MB]Conclusions [pdf, 0.12 MB]Appendix A: Data gathering review, results and balancing [pdf, 0.3 MB]Appendix B: Data tables [pdf, 0.35 MB]Appendix C: BASS Workshop on the "Development of a conceptual model of the subarctic Pacific Basin ecosystems" [pdf, 0.16 MB]Appendix D: BASS/MODEL Workshop on "Higher trohic level modeling" [pdf, 0.24 MB]Appendix E: BASS/MODEL Workshop to review ecosystem models for the subarctic Pacific gyres [pdf, 4.39 MB]Appendix F: BASS/MODEL Workshop on "Perturbation analysis" on subarctic Pacific gyre ecosystem models using ECOPATH/ECOSIM" [pdf, 0.37 MB]Appendix G: Proposal for a BASS Workshop on "Linkages between open and coastal systems" [pdf, 0.15 MB]References [pdf, 0.14 MB](97 page document)
    Description: ISSN: 1198-273X
    Keywords: Oceanography ; North Pacific Ocean
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    PICES Press, Vol. 12, No. 2, July 2004 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/1161 | 121 | 2011-09-29 21:03:14 | 1161 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-06
    Description: The future of PICES [pdf, 1.7 MB] Paris by day - Symposium on "Quantative ecosystem indicators in fisheries management" [pdf, 0.2 MB] The Bering Sea: Current status and recent events [pdf, 0.4 MB] The state of the western North Pacific in the second half of 2003 [pdf, 0.7 MB] The state of the eastern North Pacific entering spring 2004 [pdf, 0.4 MB] PICES-IFEP Workshop on "In-situ iron enrichment experiments in the eastern and western subarctic Pacific" [pdf, 1.4 MB] Canadian SOLAS/PICES-IFEP session on "Response of the upper ocean to meso-scale iron enrichment" [pdf, 0.3 MB] Fisheries and ecosystem responses to recent regime shifts [pdf, 0.8 MB] PICES Interns [pdf, 0.8 MB] Did a regime shift occur in 1998 around Japan?- Highlights from a symposium addressing this question [pdf, 0.8 MB] The Global Ocean Carbon Observing System - Connecting national programs and regional networks [pdf, 1.7 MB] The North Pacific Ecosystem Metadatabase [pdf, 1.2 MB] International GLOBEC Symposium on "Climate variability and Sub-Arctic marine ecosystems" [pdf, 0.2 MB] PICES Calendar [pdf, 0.2 MB] PICES/GLOBEC Symposium on "Climate variability and ecosystem impacts on the North pacific: A basin-scale synthesis" [pdf, 0.2 MB]
    Description: ISSN: 1195-2512
    Keywords: Oceanography ; Information Management ; North Pacific Ocean ; marine research ; micronekton sampling ; ocean acidification ; salmon ; Bering Sea ; subarctic waters ; large marine ecosystems
    Repository Name: AquaDocs
    Type: monograph
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    PICES Press, Vol. 12, No. 1, January 2004 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/1162 | 121 | 2011-09-29 21:03:17 | 1162 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-06
    Description: The state of PICES science - 2003 (pdf 281 KB) 2003 Wooster Award (pdf 764 KB) The state of the eastern North Pacific through summer 2003 (pdf 448 KB) The Bering Sea: Current status and recent events (pdf 951 KB) The state of the western North Pacific in the first half of 2003 (pdf 684 KB) The status of oceanic zooplankton in the eastern North Pacific (pdf 390 KB) The precautionary approach to the PDO (pdf 976 KB) Photo highlights of PICES XII (pdf 2.79 MB) William G. Pearcy: Renaissance oceanographer (pdf 2.86 MB) KORDI/PICES/CoML Workshop on "Variability and status of the Yellow Sea and East China Sea ecosystems (pdf 785 KB) PICES/IOC Workshop on "Harmful algal blooms - Harmonization of data" (pdf 330 KB) From physics to predators: Monitoring North Pacific ecosystem dynamics (pdf 270 KB) Toward a coast-wide network of Northeast Pacific coastal-ocean monitoring programs - a brief workshop report (pdf 640) PICES publications (pdf 103 KB) PICES calendar (pdf 45 KB)
    Description: ISSN: 1195-2512
    Keywords: Oceanography ; Information Management ; North Pacific Ocean ; marine research ; micronekton sampling ; ocean acidification ; salmon ; Bering Sea ; subarctic waters ; large marine ecosystems
    Repository Name: AquaDocs
    Type: monograph
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    PICES Press, Vol. 6, No. 2, July 1998 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/1173 | 121 | 2011-09-29 21:01:53 | 1173 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-06
    Description: CREAMS, PICES and the exploration of the Japan/East Sea The state of the eastern North Pacific from September 97 to February 98 The state of the western North Pacific in the second half of 1997 The status of the Bering Sea in the second half of 1997 Hyung Tack Huh Report on GOOS Living Marine Resource Panel Meeting Global connections: A report of the GLOBEC International Open Science Meeting Update on U.S. GLOBEC research projects and coordination activities in the Northeast Pacific Institutional framework for oceanographic research in Japan The Kuroshio Edge Exchange Processes (KEEP) Project Report on NPAFC Workshop on Climate Change and Salmon Production A new ocean time series station in the western subarctic Pacific
    Description: ISSN: 1195-2512
    Keywords: Oceanography ; Information Management ; North Pacific Ocean ; marine research ; micronekton sampling ; ocean acidification ; salmon ; Bering Sea ; subarctic waters ; large marine ecosystems
    Repository Name: AquaDocs
    Type: monograph
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  • 95
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    PICES Press, Vol. 4, No. 1, January 1996 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/1178 | 121 | 2010-12-14 16:08:15 | 1178 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-06
    Description: ISSN: 1195-2512
    Keywords: Oceanography ; Information Management ; North Pacific Ocean ; marine research ; micronekton sampling ; ocean acidification ; salmon ; Bering Sea ; subarctic waters ; large marine ecosystems
    Repository Name: AquaDocs
    Type: monograph
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  • 96
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    PICES Press, Vol. 3, No. 2, July 1995 (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/1179 | 121 | 2010-12-14 16:08:18 | 1179 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-06
    Description: ISSN: 1195-2512
    Keywords: Oceanography ; Information Management ; North Pacific Ocean ; marine research ; micronekton sampling ; ocean acidification ; salmon ; Bering Sea ; subarctic waters ; large marine ecosystems
    Repository Name: AquaDocs
    Type: monograph
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    Proceedings of the Second PICES Workshop on the Okhotsk Sea and Adjacent Areas [Nemuro, Japan, November 9-12, 1998] (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/1320 | 121 | 2011-09-29 20:45:40 | 1320 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-07
    Description: Table of Contents [pdf, 0.01 Mb]Preface [pdf, 0.01 Mb]Masaaki AotaLong-term tendencies of sea ice concentration and air temperature in the Okhotsk Sea coast of Hokkaido [pdf, 0.05 Mb]Hajime Ito & Miki YoshiokaGeography of the seasonally ice covered seas [pdf, 0.5 Mb]George V. Shevchenko & Victor F. PutovOn wind and tide induced sea-ice drift on the northeastern shelf of Sakhalin Island (analysis of radar data) [pdf, 0.96 Mb]Boris S. Dyakov, A.A. Nikitin, L. S. Muktepavel & T.A. ShatilinaVariability of the Japan and Okhotsk Seas ice cover depending on geopotential field H500 over the Far-Eastern region [pdf, 0.10 Mb]Aleksandr G. Petrov & Nikolay A. RykovIntermediate cold layer and ice cover in the Sea of Okhotsk [pdf, 0.37 Mb]Vladimir Ponomarev, Olga Trusenkova, Elena Ustinova & Dmitry KaplunenkoInterannual variations of oceanographic and meteorological characteristics in the Sea of Okhotsk [pdf, 0.16 Mb]George V. Shevchenko & Akie KatoSeasonal and interannual changes of atmospheric pressure, air and water temperature in the area of the Kuril Ridge [pdf, 0.13 Mb]George V. Shevchenko & Vladimir Yu. SavelievSpatial variability of the wind field in the area of the Kuril Islands [pdf, 0.15 Mb]Alexander L. Figurkin & Igor A. ZhigalovSeasonal variability and specifity of the oceanological conditions in the northern Okhotsk Sea in 1997 [pdf, 1.04 Mb]Igor A. ZhabinVentilation of the upper portion of the intermediate water in the Okhotsk Sea [pdf, 0.80 Mb]Vladimir A. Luchin & Alexander L. FigurkinOceanographic conditions over the Kashevarov Bank [pdf, 0.61 Mb]Toshiyuki Awaji, Tomohiro Nakamura, Takaki Hatayama, Kazunori Akimoto & Takatoshi TakizawaTidal exchange through the Kuril Straits [pdf, 2.01 Mb]Tomohiro Nakamura, Toshiyuki Awaji, Takaki Hatayama, Kazunori Akimoto, Takatoshi Takizawa & Masao FukasawaVertical mixing induced by tidally generated internal waves in the Kuril Straits [pdf, 0.83 Mb]Katsuro Katsumata & Ichiro YasudaWater exchange between the Okhotsk Sea and the North Pacific Ocean estimated by simple models [pdf, 0.97 Mb]Konstantin A. RogachevOyashio west path culmination as the consequence of a rapid thermohaline transition in the Pacific Subarctic [pdf, 0.22 Mb]Yasuhiro KawasakiOn the year-to-year change in subarctic water characteristics around the Kuril Islands [pdf, 0.39 Mb]Alexander L. Figurkin & Evgeniy E. OvsyannikovInfluence of oceanological conditions of the West Kamchatka shelf waters on spawning grounds and on pollock egg distribution [pdf, 0.97 Mb]Igor E. Kochergin & Alexander A. BogdanovskyTransport and turbulence characteristics for the northeastern Sakhalin shelf conditions [pdf, 0.08 Mb]Igor E. Kochergin, Alexander A. Bogdanovsky, Valentina D. Budaeva, Vyacheslav G. Makarov, Vasily F. Mishukov, S.N. Ovsienko, Victor F. Putov, L.A. Reitsema, J.W. Sciallabba, O.O. Sergucheva & P.V. YaroshModeling of oil spills for the shelf conditions of northeastern Sakhalin [pdf, 0.32 Mb]Valentina D. Budaeva & Vyacheslav G. MakarovA peculiar water regime of currents in the area of eastern Sakhalin shelf [pdf, 0.66 Mb]Nikolay A. RykovThe oceanographic databases on the Sakhalin shelf [pdf, 0.27 Mb]Akifumi Nakata, Iori Tanaka, Hiroki Yagi, Tomomi Watanabe, Gennady A. Kantakov & Andrew D. SamatovFormation of high-density water (over 26.8 sigma-t) near the La Perouse Strait (the Soya Strait) [pdf, 0.09 Mb]Minoru Odamaki & Kouji IwamotoCurrents and tidal observations by Hydrographic Department of Maritime Safety Agency, off the Okhotsk coast of Hokkaido [pdf, 0.16 Mb]Yasushi Fukamachi, Genta Mizuta, Kay I. Ohshima, Motoyo Itoh, Masaaki Wakatsuchi & Masaaki AotaMooring measurements off Shiretoko Peninsula, Hokkaido in 1997-1998 [pdf, 0.19 Mb]Mikhail A. Danchenkov, David Aubrey & Stephen C. RiserOceanographic features of the La Perouse Strait [pdf, 0.91 Mb]Iori Tanaka & Akifumi NakataResults of direct current measurements in the La Perouse Strait (the Soya Strait), 1995-1998 [pdf, 0.06 Mb]Gennady A. Kantakov & George V. ShevchenkoIn situ observations of Tsushima and West-Sakhalin currents near La Perouse (Soya) Strait [pdf, 0.79 Mb]Irina Y. BraginaGeographical and biological characteristics of the net zooplankton in the southwestern part of the Sea of Okhotsk during 1987-1996 [pdf, 0.27 Mb]List of corresponding authors [pdf, 0.01 Mb](Document pdf contains 193 pages)
    Description: ISSN: 1198-273X
    Keywords: Oceanography ; North Pacific Ocean
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  • 98
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    The Okhotsk Sea and Oyashio Region (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/1331 | 121 | 2011-09-29 20:45:01 | 1331 | North Pacific Marine Science Organization (PICES)
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    Publication Date: 2021-07-07
    Description: This is a final report(1993)of PICES Working Group 1. The objective of the report was to present a review of the importance of the Okhotsk Sea and Oyashio Region on the Ventilation of the North Pacific Ocean, such as the formation of the North Pacific intermediate water. (PDF contains 235 pages)
    Description: ISSN: 1198-273X
    Keywords: Oceanography
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  • 99
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    Coastal Pelagic Fishes (Report of Working Group 3); Subarctic Gyre (Report of Working Group 6) (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/1333 | 121 | 2011-09-29 20:43:51 | 1333 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-07
    Description: This is a report of PICES Working Group 3 (Coastal Pelagic Fishes) for 1993 and the first Annual Report of the Subarctic Gyre Working Group (WG-6). (PDF contains 131 pages)
    Description: North Pacific Marine Science Organization (PICES)
    Keywords: Oceanography
    Repository Name: AquaDocs
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  • 100
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    Environmental Assessment of Vancouver Harbour Data Report for the PICES Practical Workshop (2021)
    North Pacific Marine Science Organization (PICES) | Sidney, British Columbia
    In:  http://aquaticcommons.org/id/eprint/1313 | 121 | 2011-09-29 20:46:01 | 1313 | North Pacific Marine Science Organization (PICES)
    Details
    Publication Date: 2021-07-07
    Description: Table of Contents [pdf, 0.13 Mb] Section I - Practical Workshop Description [pdf, 21.22 Mb]Section II - Site Description and Oceanography [pdf, 0.40 Mb]Section III - Extended AbstractsContaminant Concentrations in Sediment and Biota [pdf, 1.36 Mb]Biochemical and Physiological Studies [pdf, 0.77 Mb]Community Studies [pdf, 1.01 Mb]Harmful Algae Studies [pdf, 0.67 Mb]Section IV - Comprehensive Data TablesSite Locations [pdf, 0.10 Mb]Sediment Chemistry [pdf, 0.54 Mb]Tissue Chemistry – Fish [pdf, 1.20 Mb]Tissue Chemistry – Bivalves [pdf, 0.49 Mb]Lipid and Fatty Acids in Mytilus trossulus [pdf, 0.15 Mb]Biochemical, Physiological and Histopathological Parameters [pdf, 1.20 Mb]Biological Community Data – Fish and Mussels [pdf, 0.87 Mb]Biological Community Data – Macrobenthos [pdf, 0.85 Mb]Harmful Algae [pdf, 0.07 Mb](Document contains 205 pages)
    Description: ISSN: 1198-273X
    Keywords: Oceanography ; North Pacific Ocean
    Repository Name: AquaDocs
    Type: monograph
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