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  • Conservation  (1,003)
  • Oceanography  (944)
  • Deutschland
  • 2020-2022  (1,909)
  • 1920-1924
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  • 1
    Publication Date: 2021-06-07
    Description: The diagnosis of the conservation state of monumental structures from constraints to the spatial distribution of their physical properties on shallow and inner materials represents one of the key objectives in the application of non-invasive techniques. In situ, CRP and 3D ultrasonic tomography can provide an effective coverage of stone materials in space and time. The intrinsic characteristics of the materials that make up a monumental structure and affect the two properties (i.e., reflectivity, longitudinal velocity) through the above methods substantially differ. Consequently, the content of their information is mainly complementary rather than redundant. In this study we present the integrated application of different non-destructive techniques i.e., Close Range Photogrammetry (CRP), and low frequency (24 KHz) ultrasonic tomography complemented by petrographycal analysis based essentially on Optical Microscopy (OM). This integrated methodology has been applied to a Carrara marble column of the Basilica of San Saturnino, in Byzantine-Proto-Romanesque style, which is part of the Paleo Christian complex of the V-VI century. This complex also includes the adjacent Christian necropolis in the square of San Cosimo in the city of Cagliari, Sardinia, Italy. The column under study is made of bare material dating back probably to the first century A.D., it was subjected to various traumas due to disassembly and transport to the site, including damage caused by the close blast of a WWII fragmentation bomb. High resolution 3D modelling of the studied artifact was computed starting from the integration of proximal sensing techniques such as CRP based on Structure from Motion (SfM), with which information about the geometrical anomalies and reflectivity of the investigated marble column surface was obtained. On the other hand, the inner parts of the studied body were successfully inspected in a non-invasive way by computing the velocity pattern of the ultrasonic signal through the investigated materials using 3D ultrasonic tomography. This technique gives information on the elastic properties of the material related with mechanical properties and a number of factors, such as presence of fractures, voids, and flaws. Extracting information on such factors from the elastic wave velocity using 3D tomography provides a non-invasive approach to analyse the property changes of the inner material of the ancient column. The integrated application of in situ CRP and ultrasonic techniques provides a full 3D high resolution model of the investigated artifact. This model enhanced by the knowledge of the petrographic characteristics of the materials, improves the diagnostic process and affords reliable information on the state of conservation of the materials used in the construction processes of the studied monumental structure. The integrated use of the non-destructive techniques described above also provides suitable data for a possible restoration and future preservation.
    Description: Copernicus
    Description: Published
    Description: On line
    Description: 5T. Sismologia, geofisica e geologia per l'ingegneria sismica
    Keywords: Cultural Heritage ; Monumental Structures ; Non-Destructive Testing ; Close Range Photogrammetry ; 3D Ultrasonic Tomography ; High resolution 3D modelling ; Restoration ; Conservation ; 05.04. Instrumentation and techniques of general interest
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Abstract
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  • 2
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    Deutsche Geophysikalische Gesellschaft, Hamburg
    In:  Herausgeberexemplar
    Publication Date: 2021-08-07
    Description: Die Jubiläumsschrift zum 75jährigen Bestehen der Deutschen Geophysikalischen Gesellschaft (DGG) enthält zahlreiche Beiträge von Mitgliedern zu vier Schwerpunkten: 1) Eine Aktualisierung der Geschichte der DGG vor allem zu den an Ereignissen reichen letzten 25 Jahren sowie Ergänzungen zu vorausgegangenen Darstellungen. 2) Die Darstellung der Geschichte geophysikalischer Institute und Institutionen in Deutschland inklusive eines Rückblicks auf das erfolgreiche Wirken ihrer verdienstvollen Persönlichkeiten. 3) Die Beschreibung einer Auswahl in der deutschen Geophysik angegangener Großprojekte der letzten 25 Jahre. 4) In Anlehnung an die Festschrift zum 50jährigen Gründungsjubiläum ist schließlich noch ein Kapitel zu geophysikalischen 'Detailthemen' ausgeführt. In ihm sind auch Beiträge enthalten, die Traditionslinien bzw. Arbeiten betreffen, die in der früheren DDR aufgenommen worden waren und z.T. keine direkte Fortsetzung an einer Nachfolgeinstitution gefunden haben.
    Description: commemorativepublication
    Keywords: 550 ; Geschichte der Geophysik ; Festschriften {Geophysik} ; Deutsche Geophysikalische Gesellschaft ; Deutschland ; Geophysik ; Geschichte ; FID-GEO-DE-7
    Language: German
    Type: anthology_digi
    Format: 226 S.
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  • 3
    Publication Date: 2021-03-29
    Description: Under certain conditions, ocean surface gravity waves (SGW) interact with the seafloor underneath to trigger relatively faint but measurable seismic waves known as ocean microseisms. Cyclonic storms (e.g. hurricanes, typhoons) wandering over the ocean are major (non-stationary) sources of the former, thus opening the possibility of tracking and studying cyclones by means of their corresponding microseims. For this purpose, we identified storm-related microseisms hidden in the ambient seismic wavefield via array processing. Polarization beamforming, a robust and well-known technique is implemented. The analyses hinge on surface waves (Love and Rayleigh) which, in contrast to P-waves, are stronger but only constrain direction of arrival (without source remoteness). We use a few land-based virtual seismic arrays surrounding the North Atlantic to investigate the signatures of major hurricanes in the microseismic band (0.05-0.16 Hz), in a joint attempt to continuously triangulate their tracks. Our findings show that storm microseisms are intermittently excited with modulated amplitude at localized oceanic regions, particularly over the shallow continental shelves and slopes, having maximum amplitudes virtually independent of storm category. In most cases no detection was possible over deep oceanic regions, nor at distant arrays. Additionally, the rear quadrants and trailing swells of the cyclone provide the optimum SGW spectrum for the generation of microseisms, often shifted more than 500 km off the "eye". As a result of the aforementioned and added to the strong attenuation of storm microseisms, the inversion of tracks or physical properties of storms using a few far-field arrays is discontinuous in most cases, being reliable only if benchmark atmospheric and/or oceanic data is available for comparison. Even if challenging due to the complexity of the coupled phenomena responsible for microseisms, the inversion of site properties, such as bathymetric parameters (e.g. depth, seabed geomorphology), near- bottom geology or SGW spectrum might be possible if storms are treated as natural sources in time-lapse ambient noise investigations. This will likely require near-field (land and underwater) observations using optimal arrays or dense, widespread sensor networks. Improved detection and understanding of ocean microseisms carries a great potential to contribute to mechanically coupled atmosphere-ocean-earth models.
    Description: Universität Hamburg
    Description: poster
    Keywords: 550 ; 621 ; 004 ; 534 ; Ambient seismic noise ; Seismology ; Oceanography ; Microseisms ; Cyclones ; Hurricanes ; Marine Geophysics ; Beamforming ; FID-GEO-DE-7
    Language: English
    Type: poster
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  • 4
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    DGG, [Münster]
    In:  Herausgeberexemplar
    Publication Date: 2021-05-06
    Description: Wird heute genug für die wissenschaftliche und technologische Steuerung des sich immer rasanter vollziehenden globalen und regionalen Wandels der Bio- und Geosphäre getan? Hat die internationale Gemeinschaft die Kraft zu einem sinnvollen, übergreifenden "Umwelt-Management"? Geophysik kann auf Grund ihrer interdisziplinären Stellung innerhalb der Naturwissenschaften und mit ihren vielfältigen Beziehungen zur Technik zum effizienten Einsatz der Kräfte und Mittel beitragen - in einer Zeit weltweiter sozialer, politischer und eben auch ökologischer Konflikte. Geophysik kann notwendige Prioritäten wissenschaftlich begründen und verfechten und somit helfen, weittragende und konsensfähige Entscheidungen vorzubereiten, um gesellschaftliche Akzeptanz und Unterstützung für die Politik zu erreichen. Die Deutsche Geophysikalische Gesellschaft - getragen von ihrer Verantwortung um den Beitrag der Geophysik für die gemeinsame Zukunft - wendet sich im 75. Jahr ihres Bestehens mit dieser Denkschrift an die Öffentlichkeit. Teil I enthält einen Überblick zur Spezifik, zur Stellung, zu den Zielen und zur Bedeutung der Geophysik. Im Teil II stellen führende Geophysiker ausgewählte Beispiele moderner geophysikalischer Forschung vor. Teil III ist statistisch angelegt und gibt einen kurzen Überblick zu den in Deutschland angesiedelten Institutionen geophysikalischer Lehre und Forschung. Die Denkschrift "Mit Geophysik in die Zukunft" will Politiker, Industrielle, Wissenschaftler, Vertreter der Medien und interessierte Bürger erreichen, um im Interesse des Gemeinwohls zu angemessener Wissenschaftsförderung und kluger Zukunftsgestaltung beizutragen.
    Description: commemorativepublication
    Description: DFG, SUB Göttingen
    Keywords: 550 ; Wissenschaftsorganisation und -pflege {Geophysik} ; Geophysik ; Wissenschaft ; Forschung ; Deutschland ; FID-GEO-DE-7
    Language: German
    Type: anthology_digi
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  • 5
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    International Collective in Support of Fishworkers | Chennai, India
    In:  icsf@icsf.net | http://aquaticcommons.org/id/eprint/11303 | 25 | 2015-09-24 08:21:14 | 11303 | International Collective in Support of Fishworkers
    Publication Date: 2021-06-30
    Description: South Africa- Shifting livelihoods, Viet Nam-Strengthening livelihoods, Chile - gains and challenges, Uganda- making changes possible, Maritza Mena from Costa Rica, Ground-breaking gender indicators, You tube resources
    Description: ISSN 0973-1156
    Keywords: Conservation ; Fisheries ; Policies ; women ; livelihoods ; MPAs ; theatre ; feminism
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 12
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  • 6
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    International Collective in Support of Fishworkers | Chennai, India
    In:  icsf@icsf.net | http://aquaticcommons.org/id/eprint/11301 | 25 | 2015-05-19 15:10:57 | 11301 | International Collective in Support of Fishworkers
    Publication Date: 2021-06-30
    Description: Sticky issues - An update on the recent SSF guidelines, Forced into slavery- New Zealand, Grabbing oceans- MPAs fail to recognize human-rights issues, Getting rights wrong- GPO ignores the voices of SSF people, Smoking kilns- artisan fishers on the map, Depending on mangroves- Vietnam, Statement made at the GDF on work in fishing convention, fishy partnership- proposed GPO, Champion for fishers - Rolf Willmann
    Keywords: Conservation ; Fisheries ; Management ; Policies ; Sociology ; Forced labour ; fishing rights ; GPO ; small-scale fisheries ; MPAs ; mangroves
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 52
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  • 7
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    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)
    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
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 38
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  • 8
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    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)
    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
    Repository Name: AquaDocs
    Type: monograph
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  • 9
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    In:  http://aquaticcommons.org/id/eprint/12296 | 31 | 2013-11-15 23:20:20 | 12296 | Gulf and Caribbean Fisheries Institute
    Publication Date: 2021-06-28
    Description: Item includes an abstract in Spanish.
    Keywords: Fisheries ; Oceanography ; GCFI
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 106-113
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  • 10
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    Chesapeake Biological Laboratory | Solomons Island, MD
    In:  http://aquaticcommons.org/id/eprint/12400 | 130 | 2014-02-08 04:00:03 | 12400 | University of Maryland Center for Environmental Science. Chesapeake Biological Laboratory
    Publication Date: 2021-06-30
    Description: The crab pot as a fishing gear was introduced in Maryland waters, following some years of greatly expanded use in Virginia, during the 1939 season, and was widely used during 1940. The 1941 session of the Maryland Legislature, however, illegalized the crab pot. Since that time the device has been given up almost entirely by Maryland fishermen, its attempted use in a commercial way having persisted in diminishing numbers in only one region of the state.
    Keywords: Conservation ; Fisheries ; Policies
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 20
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  • 11
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    University of Maryland Center for Environmental Science. Chesapeake Biological Laboratory | Solomons, MD
    In:  http://aquaticcommons.org/id/eprint/12395 | 130 | 2014-02-10 02:30:32 | 12395 | University of Maryland Center for Environmental Science. Chesapeake Biological Laboratory
    Publication Date: 2021-06-30
    Description: This workshop was convened to begin building a foundation of understanding for developing and evaluating proposed measures for the rational management of the blue crab fishery in Chesapeake Bay. Our goal was to generate a summary of knowledge of blue crab stock dynamics. Specifically, we intended to address, and hoped to estimate, the basic parameters of an exploited stock - growth, mortality, natality, migration rates, sex ratios and abundance. In one sense these objectives were simply a means for organizing our discussions. A second objective was to compile at the workshop pertinent data held by the major research institutions on Chesapeake Bay so all participants could see the kinds and extent of existing data. As with many stock assessment problems, tailoring an estimating procedure around known existing data can be more productive than deciding on a procedure and then trying to find the required data in someone else's files.Authors of papers contributed to the report: B.S. Hester and P.R. Mundy (p. 50); Qisheng Tang (p. 86); L. Eugene Cronin (p. 111); J.R. McConaugha (p. 128); Cluney Stagg and Phil Jones (p. 153).
    Description: Chesapeake Bay Commission
    Description: University of Maryland Center for Environmental Science. Chesapeake Biological Laboratory
    Description: Editorial Series #ES-01-83, Center for Environmental and Estuarine Studies of the University of Maryland
    Keywords: Conservation ; Ecology ; Fisheries ; Management ; Planning ; Policies
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 168
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  • 12
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    Global Coral Reef Monitoring Network | Townsville, Australia
    In:  http://aquaticcommons.org/id/eprint/12585 | 9 | 2014-03-25 18:32:11 | 12585 | Central Caribbean Marine Institute
    Publication Date: 2021-07-03
    Keywords: Conservation ; Ecology ; Environment
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 73-84
    Format: 152
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  • 13
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    Global Coral Reef Monitoring Network and Reef and Rainforest Research Centre | Townsville, Australia
    In:  http://aquaticcommons.org/id/eprint/12584 | 9 | 2014-03-25 18:33:50 | 12584 | Central Caribbean Marine Institute
    Publication Date: 2021-07-03
    Keywords: Conservation ; Environment
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 239-252
    Format: 296
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  • 14
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    In:  http://aquaticcommons.org/id/eprint/12746 | 9 | 2013-12-09 19:57:32 | 12746 | Gulf and Caribbean Fisheries Institute
    Publication Date: 2021-07-05
    Keywords: Earth Sciences ; Fisheries ; Oceanography ; GCFI
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 838-838
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  • 15
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    Chesapeake Biological Laboratory | Solomons Island, MD
    In:  http://aquaticcommons.org/id/eprint/12760 | 130 | 2014-02-08 01:04:22 | 12760 | University of Maryland Center for Environmental Science. Chesapeake Biological Laboratory
    Publication Date: 2021-07-05
    Description: The Chesapeake Biological Laboratory is a research and study center founded to accelerate the acquisition of knowledge through the gathering and dissemination of facts to the end that there may be a fuller appreciation of nature.
    Keywords: Conservation ; Ecology ; Fisheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 21
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  • 16
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    Chesapeake Biological Laboratory | Solomons Island, MD
    In:  http://aquaticcommons.org/id/eprint/12761 | 130 | 2014-02-08 03:53:19 | 12761 | University of Maryland Center for Environmental Science. Chesapeake Biological Laboratory
    Publication Date: 2021-07-05
    Description: Substantial progress was made in 1938 both in respect to additions made in the physical plant and to the problems effectively pursued by an energetic staff.
    Keywords: Conservation ; Ecology ; Fisheries
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 19
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  • 17
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    Chesapeake Biological Laboratory | Solomons Island, MD
    In:  http://aquaticcommons.org/id/eprint/12824 | 130 | 2014-02-08 04:02:55 | 12824 | University of Maryland Center for Environmental Science. Chesapeake Biological Laboratory
    Publication Date: 2021-07-06
    Description: Baltimore Harbor is polluted by discharge of sewage and industrial wastes into tributary streams and peripheral waters. The Harbor is used extensively for navigation, industrial water supply, and recreation as well as for waste disposal. The degree of pollution varies from negligible in the principal fairway to severe in the innermost sections. Private industry discharges several hundred tons of acid materials daily and is also the principal source of organic pollution.
    Description: PDF includes 141 pp. (front matter + 132 pp.).
    Keywords: Conservation ; Ecology ; Environment ; Pollution
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 132
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  • 18
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    Texas Water Quality Board | Austin, TX
    In:  http://aquaticcommons.org/id/eprint/14162 | 9596 | 2020-08-31 20:23:31 | 14162 | Galveston Bay Information Collection
    Publication Date: 2021-06-24
    Description: The Houston Ship Channel is an area of intense interest with respect to water water quality. Frequent inquiries regarding its condition are received from diverse groups including industries, concerned citizens, environmental groups, school teachers, and students. In order to provide current and accurate information, the Water Quality Board is publishing herein water quality and biological data collected during the period July 1973 through June 1974. This information provides a fairly complete picture of the range of variation that is seen in Channel quality. The locations of all Water Quality Board monitoring stations, and of major industrial and municipal discharges, is given in Table I. Data from five representative sampling stations between Morgan's Point (Mile 0) and the Turning Basin (Mile 25), are sufficient to illustrate general conditions in the Ship Channel. Table II contains field measurements and laboratory results for water samples collected at depth of one foot (surface) and 40 feet. All values are expressed as milligrams/liter, essentially equivalent to parts/million, with the following exceptions: temperature (oF), pH (pH units), turbidity (Jackson Turbidity Units), conductivity (micromhs/cm), and coliform bacteria (Number/100 milliliters). The heavy metals results in Table III are based on samples collected by composting water from the surface to the bottom. Plankton samples (Table IV) were collected at or near each of the five stations. Nekton, the animals that are larger and stronger swimmers than plankton, were collected at the intake screens of Diamond Shamrock, Deer Park Plant, and Houston Lighting and Power Company, Deepwater Plant (Table V). It is important to realize that the Houston Ship Channel is a dynamic estuarine system. At no time will precisely the same conditions prevail that were previously found at the same location. The dissolved oxygen concentration may be the same as it was yesterday, for instance, but never will the combination of temperature, conductivity, pH, and all other parameters be the same.
    Keywords: Conservation ; Limnology ; Management ; monitoring program ; water quality
    Repository Name: AquaDocs
    Type: monograph
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    Format: application/pdf
    Format: 36
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  • 19
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    Texas Game and Fish Commission Marine Laboratory | Rockport, TX
    In:  http://aquaticcommons.org/id/eprint/14207 | 9596 | 2020-08-23 22:50:08 | 14207 | Galveston Bay Information Collection
    Publication Date: 2021-06-24
    Description: In order to obtain information on the characteristics of water and climate that prevail in Galveston Bay, East Bay, and West Bay, established stations were sampled regularly. Information derived from samples included water temperature and salinity. Additional information of this nature was derived from other bay studies. Information on river flow, air temperature and wind were derived from publications. Water temperatures were found to follow air temperatures closely. The prevailing winds in all but two months were on-shore winds. Salinities were found to vary inversely with the volume of fresh water entering the bays from the Trinity River. West Bay, due to its locations, is affected less than the other bays by fresh water from the Trinity River. Vertical and horizontal salinity gradients were found to be the normal pattern in East Bay and Galveston Bay. West Bay, with two major passes to the Gulf of Mexico and with no major source of fresh water, normally maintained higher salinities than the other bays.
    Keywords: Chemistry ; Oceanography ; GBIC ; hydrography ; meteorology ; salinity gradients ; temperature ; salinity ; water sampling
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    Type: book_section
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  • 20
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    Texas Game and Fish Commission | Rockport, Texas
    In:  http://aquaticcommons.org/id/eprint/14211 | 9596 | 2020-08-23 23:18:07 | 14211 | Galveston Bay Information Collection
    Publication Date: 2021-06-24
    Description: Samples of the bottom sediments in upper Galveston and Trinity Bays were obtained by various means including by hand, plastic tube, Eckman dredge, etc. and the distribution of the various bottom types were plotted throughout the area. Information and data were gathered from numerous sources and publications.
    Keywords: Oceanography ; GBIC ; Ekman dredge ; sediments ; sampling ; sediment sampling ; bottom topography
    Repository Name: AquaDocs
    Type: book_section
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    Format: application/pdf
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  • 21
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    In:  http://aquaticcommons.org/id/eprint/14315 | 8 | 2014-01-27 21:35:56 | 14315
    Publication Date: 2021-07-10
    Description: EXTRACT (SEE PDF FOR FULL ABSTRACT):Examining secular changes in relative sea level along the U.S. west coast, we have identified strong tectonic signals. Tectonism exists not only on a coherent plate-wide scale (assuming a rigid plate approximation), but also on a sub-plate scale. In fact, differential tectonism between exotic or suspect geological terrain explains much of the spatial patterns of west coast tide-gauge data. Peltier's isostatic model appears not to explain the spatial pattern, implying glacio-isostatic adjustment is not the dominant contribution to the low-frequency signals. Eustatic effects cannot be identified unambiguously.These studies suggest several major questions/observations with regard to relative sea-level studies ...
    Keywords: Earth Sciences ; Oceanography ; PACLIM
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  • 22
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    In:  http://aquaticcommons.org/id/eprint/14469 | 8 | 2014-02-14 00:44:32 | 14469
    Publication Date: 2021-06-25
    Description: Previous consideration of the relationship between climate and the survival rate of Pacific salmon eggs and fry has been confined to effects of large variation in the ambient freshwater environment; e.g., stream discharge, temperature, turbidity. This analysis shows sea surface temperatures during the last year of life of maturing adult salmon are also strongly associated with the subsequent survival rate of salmon eggs and fry is fresh water, presumably through development of the future eggs or sperm. In several stocks of three species of North American salmon, the association between the "marine" climate and egg survival is stronger than, or additive to, any estimated climatic association in fresh water. This apparent and surprising link between fresh water and the distant ocean has some interesting and complex implications for management of future salmon production.
    Keywords: Ecology ; Oceanography ; PACLIM
    Repository Name: AquaDocs
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    In:  http://aquaticcommons.org/id/eprint/14478 | 8 | 2014-02-08 00:25:37 | 14478
    Publication Date: 2021-06-25
    Description: Twenty-seven years (1956-1983) of oceanographic data collected at Ocean Station P (50°N/145°W), as well as supplementary data obtained in its neighborhood, have been examined for trends and interannual variability in the northeast Pacific Ocean. There is evidence that the water is warming and freshening and that the isopycnal surfaces are deepening. Trends in oxyty are mostly not significant. The most common periods for the interannual variability appear to be 2 1/2 and 6-7 years. The vertical movement of water accounts for one half of the changes in temperature and salinity and 30% of those in oxyty. Other factors, such as a shift of water masses, may also be important.
    Keywords: Oceanography ; PACLIM
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    Format: application/pdf
    Format: 43-43
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    In:  http://aquaticcommons.org/id/eprint/14407 | 8 | 2014-02-08 00:01:33 | 14407
    Publication Date: 2021-07-10
    Keywords: Atmospheric Sciences ; Earth Sciences ; Oceanography ; PACLIM
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 14
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    In:  http://aquaticcommons.org/id/eprint/14413 | 8 | 2014-02-06 00:03:28 | 14413
    Publication Date: 2021-07-10
    Description: EXTRACT (SEE PDF FOR FULL ABSTRACT):Chemical isolation of lattice-bound trace elements in marine carbonates has opened new windows to paleoceanographic study. In a modern context at the Galapagos Islands, oceanic upwelling variability is mirrored by changes in the Cd content of reef-building corals. This association derives from cadmium's nutrient-like distribution in the water column and its ability to substitute for calcium in the aragonite lattice of corals. Given corals of sufficient age, it is thus possible to reconstruct near-term ENSO-related changes in surface waters of the eastern Equatorial Pacific on annual and sub-annual timescales.
    Keywords: Atmospheric Sciences ; Earth Sciences ; Oceanography ; PACLIM
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    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 7-10
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    NOAA/National Centers for Coastal Ocean Science | Beaufort, NC
    In:  http://aquaticcommons.org/id/eprint/14941 | 403 | 2014-03-17 18:26:25 | 14941 | United States National Ocean Service
    Publication Date: 2021-06-29
    Description: The impact of recent changes in climate on the arctic environment and its ecosystems appear to have a dramatic affect on natural populations (National Research Council Committee on the Bering Sea Ecosystem 1996) and pose a serious threat to the continuity of indigenous arctic cultures that are dependent on natural resources for subsistence (Peterson D. L., Johnson 1995). In the northeast Pacific, winter storms have intensified and shifted southward causing fundamental changes in sea surface temperature patterns (Beamish 1993, Francis et al. 1998). Since the mid 1970’s surface waters of the central basin of the Gulf of Alaska (GOA) have warmed and freshened with a consequent increase in stratification and reduced winter entrainment of nutrients (Stabeno et al. 2004). Such physical changes in the structure of the ocean can rapidly affect lower trophic levels and indirectly affect fish and marine mammal populations through impacts on their prey (Benson and Trites 2002). Alaskan natives expect continued and perhaps accelerating changes in resources due to global warming (DFO 2006).and want to develop strategies to cope with their changing environment.
    Keywords: Fisheries ; Management ; Oceanography ; Planning
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 37
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    NOAA/National Centers for Coastal Ocean Science | Silver Spring, MD
    In:  http://aquaticcommons.org/id/eprint/14948 | 403 | 2014-03-14 23:02:39 | 14948 | United States National Ocean Service
    Publication Date: 2021-06-29
    Description: Gray’s Reef National Marine Sanctuary (GRNMS) is exploring the concept of a research area (RA) within its boundaries. The idea of a research area was first suggested in public scoping meetings held prior to the review of the Gray’s Reef Management Plan. An RA is a region specifically designed for conducting controlled scientific studies in the absence of confounding factors. As a result, a multidisciplinary group gathered by GRNMS was convened to consider the issue. This Research Area Working Group (RAWG) requested that a suite of analyses be conducted to evaluate the issue quantitatively. To meet this need, a novel selection procedure and geographic information system (GIS) was created to find the optimal location for an RA while balancing the needs of research and existing users. This report and its associated GIS files describe the results of the requested analyses and enable further quantitative investigation of this topic by the RAWG and GRNMS.
    Keywords: Conservation ; Fisheries ; Management
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 51
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    In:  joanne.b.mcneill@noaa.gov | http://aquaticcommons.org/id/eprint/14916 | 403 | 2014-03-11 19:19:32 | 14916 | United States National Marine Fisheries Service
    Publication Date: 2021-06-28
    Description: As sea turtles migrate along the Atlantic coast of the USA, their incidental capture in fisheries is a significant source of mortality. Because distribution of marine cheloniid turtles appears to be related, in part, to sea surface temperature (SST), the ability to predict water temperature over the continental shelf could be useful in minimizing turtle–fishery interactions. We analyzed 10 yr of advanced very high resolution radiometer (AVHRR) SST imagery to estimate the proportion of 18 spatial zones, nearshore and offshore of Hatteras, North Carolina, USA (35° N), to north of Cape Sable, Nova Scotia (44° N), at temperatures 〉10 to 15°C, by week. Detailed examples for 11°C, the temperature employed by some management actions in the study area, and for 14°C, the lowest temperature at which turtles were sighted by some studies in the area, demonstrate a predictable pattern of rapid warming in March and April, followed by rapid cooling in October and November, with nearshore waters warming more rapidly than those offshore. Of those loggerhead turtles Caretta caretta that stranded, were sighted, or were incidentally captured between Cape Hatteras, North Carolina, and Cape Cod, Massachusetts, those at lower latitudes occurred when 25% or more of the area reached a water temperature of 11°C, while those in the northern zones did not occur until 50% or more of the area had reached a water temperature of 14°C. This analysis provides a means of predicting marine cheloniid turtle presence, which can be helpful in regulating fisheries that seasonally interact with turtles.
    Keywords: Fisheries ; Management ; Oceanography
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    Format: application/pdf
    Format: 257-266
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    Interagency Ecological Studies Program for the Sacramento-San Joaquin Estuary
    In:  http://aquaticcommons.org/id/eprint/14593 | 8 | 2014-10-27 22:04:03 | 14593
    Publication Date: 2021-06-29
    Description: Technical Report 34 of the Interagency Ecological Studies Program for the Sacramento-San Joaquin Estuary
    Keywords: Atmospheric Sciences ; Ecology ; Oceanography ; PACLIM
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 9
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    Acuario Nacional de Cuba. | La Habana, Cuba
    In:  lucyr@acuarionacional.cu | http://aquaticcommons.org/id/eprint/14968 | 1545 | 2014-05-09 22:54:31 | 14968 | Acuario Nacional de Cuba
    Publication Date: 2021-06-29
    Description: Abarca los trabajos que se presentan durante los 3 días que dura el evento infantil.
    Keywords: Conservation ; Education ; children ; conservation ; niños ; conservación de la naturaleza ; círculos de interés
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 48
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    In:  http://aquaticcommons.org/id/eprint/15564 | 8 | 2014-11-06 00:57:26 | 15564
    Publication Date: 2021-07-08
    Description: EXTRACT (SEE PDF FOR FULL ABSTRACT):Arima analysis was used to compute cross-correlations between principal component axes that described environmental variables, chlorophyll concentration and zooplankton density for the Sacramento and San Joaquin rivers and Suisun Bay. ... Cross-correlations among the time series may provide information about links between environmental and biological variables within the estuary and the possible influence of climate.
    Keywords: Biology ; Environment ; Limnology ; Oceanography ; PACLIM
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    Format: application/pdf
    Format: application/pdf
    Format: 67-69
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    NOAA/Center for Coastal Fisheries and Habitat Research | Beaufort, NC
    In:  http://aquaticcommons.org/id/eprint/15156 | 403 | 2014-06-13 00:05:25 | 15156 | United States National Ocean Service
    Publication Date: 2021-07-03
    Description: In March of 2005, the National Oceanic and Atmospheric Administration's Special Projects Office released "Population Trends along the Coastal United States: 1980-2008." This report includes population changes and trends between 1980 and 2003 and projected changes in coastal populations by 2008. Given the findings, pressure on coastal resources around the country will continue to rise, particularly in Florida. ... One of our most valuable coastal resources is seagrass, but human desire and need to live on the coast means that our habitat overlaps with suitable seagrass habitat. Seagrasses can be found in coastal areas around the world but are limited to relatively shallow, relatively clear water because of their reliance on light for photosynthesis. Seagrasses provide food for both small and large marine organisms, larval and adult stage. They provide shelter and habitat to a variety of commercially important fish and invertebrates. They baffle the water column and inhibit the resuspension of sediments. They prevent erosion and fix and recycle nutrients. The physical and ecological benefits of seagrasses make them very important to human welfare, but their light-limited coastal distribution makes them highly susceptible to anthropogenic influences.
    Description: Report submitted to Protected Resources Division, National Marine Fisheries Service.
    Keywords: Biology ; Conservation ; Management
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 31
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    Publication Date: 2021-07-04
    Description: We employed ultrasonic transmitters to follow (for up to 48 h) the horizontal and vertical movements of five juvenile (6.8–18.7 kg estimated body mass) bluefin tuna (Thunnus thynnus) in the western North Atlantic (off the eastern shore of Virginia). Our objective was to document the fishes’ behavior and distribution in relation to oceanographic conditions and thus begin to address issues that currently limit population assessments based on aerial surveys. Estimation of the trends in adult and juvenile Atlantic bluefin tuna abundance by aerial surveys, and other fishery-independent measures, is considered a priority.Juvenile bluefin tuna spent the majority of their time over the continental shelf in relatively shallow water (generally less then 40 m deep). Fish used the entire water column in spite of relatively steep vertical thermal gradients (≈24°C at the surface and ≈12°C at 40 m depth), but spent the majority of their time (≈90%) above 15 m and in water warmer then 20°C. Mean swimming speeds ranged from 2.8 to 3.3 knots, and total distance covered from 152 to 289 km (82–156 nmi). Because fish generally remained within relatively con-fined areas, net displacement was only 7.7–52.7 km (4.1–28.4 nmi). Horizontal movements were not correlated with sea surface temperature. We propose that it is unlikely that juvenile bluefin tuna in this area can detect minor horizontal temperature gradients (generally less then 0.5°C/km) because of the steep vertical temperature gradients (up to ≈0.6°C/m) they experience during their regular vertical movements. In contrast, water clarity did appear to influence behavior because the fish remained in the intermediate water mass between the turbid and phytoplankton-rich plume exiting Chesapeake Bay (and similar coastal waters) and the clear oligotrophic water east of the continental shelf.
    Keywords: Biology ; Fisheries ; Management ; Oceanography
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    Format: application/pdf
    Format: 155-167
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    Publication Date: 2021-07-05
    Description: In the face of dramatic declines in groundfish populations and a lack of sufficient stock assessment information, a need has arisen for new methods of assessing groundfish populations. We describe the integration of seafloor transect data gathered by a manned submersible with high-resolution sonar imagery to produce a habitat-based stock assessment system for groundfish. The data sets used inthis study were collected from Heceta Bank, Oregon, and were derived from 42 submersible dives (1988–90) and a multibeam sonar survey (1998). The submersible habitat survey investigated seafloor topography and groundfish abundance along 30-minute transects over six predetermined stations and found a statistical relationship between habitat variability and groundfish distribution and abundance. These transects were analyzed in a geographic information system (GIS) by using dynamic segmentation to display changes in habitat along the transects. We used the submersible data to extrapolate fish abundance within uniform habitat patches over broad areas of the bank by means of a habitat classification based on the sonar imagery. After applying a navigation correction to the submersible-based habitat segments, a good correlation with major boundaries on the backscatter and topographic boundaries on the imagery were apparent. Extrapolation of the extent of uniform habitats was made in the vicinity of the dive stations and a preliminary stock assessment of several species of demersal fish was calculated. Such a habitat-based approach will allow researchers to characterize marine communities over large areas of the seafloor.
    Keywords: Fisheries ; Management ; Oceanography
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    Format: application/pdf
    Format: 739-751
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    Mote Marine Laboratory | Sarasota, FL
    In:  libarc@mote.org | http://aquaticcommons.org/id/eprint/15270 | 9719 | 2014-06-12 16:56:01 | 15270 | Mote Marine Laboratory
    Publication Date: 2021-07-05
    Description: The National Shark Research Consortium (NSRC) includes the Center for Shark Research at Mote Marine Laboratory, the Pacific Shark Research Center at Moss Landing Marine Laboratories, the Shark Research Program at the Virginia Institute of Marine Science, and the Florida Program for Shark Research at the University of Florida. The consortium objectives include shark-related research in the Gulf of Mexico and along the Atlantic and Pacific coasts of the U.S., education and scientific cooperation.
    Description: National Oceanic and Atmospheric Administration/National Marine Fisheries Service
    Description: National Shark Research Consortium (NSRC)
    Description: Five-year technical report to NOAA/NMFS
    Keywords: Biology ; Ecology ; Education ; Engineering ; Fisheries ; Oceanography ; fish migration ; fish tagging ; shark fisheries ; shark biology ; shark research ; fishery management
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 122
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    Acuario Nacional de Cuba | La Habana, Cuba
    In:  elenag@acuarionacional.cu | http://aquaticcommons.org/id/eprint/15273 | 1545 | 2014-06-30 10:46:33 | 15273 | Acuario Nacional de Cuba
    Publication Date: 2021-07-05
    Description: Versión electrónica para multimedia del libro Corales Pétreos de Cuba publicado en 1980 por Nereida Martínez Estalella y Vasil Zlatarski. La colección de Corales pétreos se formó en el Instituto de Oceanología entre los años 1970 y 1975. En 2005 pasa a ser custodiada por el Acuario Nacional con el resto de las colecciones biológicas.La colección está formada por 4,990 ejemplares, 2 Clases Anthozoa e Hydrozoa , 16 familias, 30 géneros, 45 especies y 23 formas.Multimedia electronic book version of Stony Corals Cuba published in 1980 by Nereida Martínez Estalella and Vasil Zlatarski.The collection of stony corals are formed at the Institute of Oceanology between 1970 and 1975. Renumbered in 2005 by the National Aquarium guarded with other biological collections. The collection consists of 4,990 samples, 2 classes Anthozoa and Hydrozoa, 16 families, 30 genera, 45 species and 23 forms.
    Keywords: Biology ; Conservation ; Ecology ; Instituto de Oceanología ; corals ; taxonomía ; taxonomy ; videos ; Scleractinea ; Acroporidae ; Agariciidae ; Astrangiidae ; Caryophylliidae ; Columnastraeidae ; Hydrozoa ; Milleporina ; zlatarski
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    Type: book , TRUE
    Format: other
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    All-Union Scientific Research Institute of Sea Fisheries and Oceanography (VNIRO) | Moscow, USSR
    In:  http://aquaticcommons.org/id/eprint/15303 | 8 | 2014-08-19 21:04:17 | 15303
    Publication Date: 2021-07-05
    Description: Canadian Translation of Fisheries and Aquatic Sciences No. 5506 (1990)
    Keywords: Biology ; Oceanography
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 187
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    Pacific Regional Environment Programme (SPREP) | Apia, Samoa
    In:  irc@sprep.org | http://aquaticcommons.org/id/eprint/15369 | 11964 | 2014-09-25 11:47:56 | 15369 | Secretariat of the Pacific Regional Environment Programme (SPREP)
    Publication Date: 2021-07-06
    Description: BIORAP
    Description: BEM
    Description: Hard copies are also available from: irc@sprep.org
    Keywords: Aquaculture ; Conservation ; Earth Sciences ; Ecology ; Environment ; Oceanography ; rapid biodiversity assessment ; pacific ; terrestrial ; marine ; guidelines ; natural resources conservation area ; oceania ; sprep ; 2014 ; Pacific Regional Environment Programme (SPREP) ; Wildlands
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 54
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    In:  http://aquaticcommons.org/id/eprint/15452 | 8 | 2014-11-06 01:07:24 | 15452
    Publication Date: 2021-07-07
    Description: In 1984, a workshop was held on "climatic variability of the eastern North Pacific and western North America." From it has emerged an annual series of workshops held each spring at the Asilomar Conference Center, Monterey Peninsula, California. These annual gatherings have come to be called PACLIM (Pacific Climate) Workshops, reflecting broad interests in the climatologies associated with the Pacific Ocean. Participants in the six workshops that have convened since 1984 have included atmospheric scientists, hydrologists, geologists, glaciologists, oceanographers, limnologists, and both marine and terrestrial biologists.
    Keywords: Atmospheric Sciences ; Earth Sciences ; Oceanography ; PACLIM
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    Interagency Ecological Studies Program for the Sacramento-San Joaquin Estuary
    In:  http://aquaticcommons.org/id/eprint/15451 | 8 | 2014-11-05 23:55:51 | 15451
    Publication Date: 2021-07-07
    Description: Technical Report 23 of the Interagency Ecological Studies Program for the Sacramento-San Joaquin Estuary
    Keywords: Atmospheric Sciences ; Earth Sciences ; Oceanography ; PACLIM
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 11
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    In:  http://aquaticcommons.org/id/eprint/15450 | 8 | 2014-11-20 18:42:53 | 15450
    Publication Date: 2021-07-07
    Description: As one facet of an effort to tie the pollen record of central Gulf of California deep cores to modern analogs, pollen was analyzed in the uppermost 150-200 years of varved core 7807-1410 taken nearby. Sampling at 2- to 8-year resolution yielded a noncomplacent record, suggesting pollen in these sediments may be a potential high resolution proxy record of short-term climatic events. The pollen spectrum as a whole matches that of upper-most DSDP Site 480 (means of all samples). Lack of a ratio or influx shift following damming of local rivers and a surplus of low-spine Compositae pollen relative to mainland sites support Baumgartner's theory that terrigenous influx to the site is largely aeolian and also suggest that a significant fraction of the pollen influx may come from Baja California.
    Keywords: Atmospheric Sciences ; Earth Sciences ; Oceanography ; PACLIM ; palynology
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    Format: application/pdf
    Format: application/pdf
    Format: 101-104
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    WorldFish | Penang, Malaysia
    In:  http://aquaticcommons.org/id/eprint/15596 | 115 | 2014-11-19 08:49:14 | 15596 | WorldFish Center
    Publication Date: 2021-07-08
    Description: Lake Victoria fisheries face severe environmental stresses. Stocks are declining in a context of increasing population and growing demand for the lake’s resources. Rising competition between users is putting conservation goals and rural livelihoods at risk. While Uganda’s co-management policy framework is well-developed, key resources for implementation are lacking, enforcement is poor, and the relations between stakeholders are unequal. Poor rural resource users face significant challenges to effectively participate in fisheries decision-making. This case study demonstrates the progress that can be made using a collaborative approach to catalyze community-led actions linking public health, sanitation and environmental conservation in difficult circumstances, even over a relatively short time period. Multistakeholder dialogue can bring to light the sources of conflict, pinpoint governance challenges, and identify opportunities for institutional collaboration to address community needs. At the same time, the process can help build trust, confidence in collective action and public accountability.
    Description: Collaborating for Resilience
    Keywords: Agriculture ; Aquaculture ; Accountability ; Aquatic Agricultural Systems ; Aquatic resources ; Capacity development ; Co-management ; Conservation ; Environmental protection ; Equity ; Fisheries management ; Fresh water ; Governance ; Health ; Human rights ; Livelihoods ; Monitoring and evaluation ; Natural resource management ; Participatory action research ; Partnerships ; Policy ; Research ; Resilience ; Vulnerability ; Uganda ; Africa
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 28
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    In:  http://aquaticcommons.org/id/eprint/16156 | 12051 | 2015-02-08 09:39:40 | 16156 | Society of Fisheries Technologists, India
    Publication Date: 2021-06-29
    Description: Studies conducted in the laboratory and field have shown that iced fish can be preserved for longer periods in fresh and edible condition in conventional bamboo baskets by providing additional insulated linings of double layer of gunny and polythene or bitumen coated kraft paper. The quality of fish is adjudged by chemical and organoleptic evaluations.
    Keywords: Conservation ; Fisheries ; fish storage ; packing fishery products ; storage conditions ; icing ; organoleptic properties
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 68-75
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    In:  http://aquaticcommons.org/id/eprint/16288 | 12051 | 2015-03-09 15:15:30 | 16288 | Society of Fisheries Technologists, India
    Publication Date: 2021-07-02
    Description: The wave data collected on board Ins Kistna from Bay of Bengal during July to August, 1964 and January, February and April, 1965 are presented. The wave parameters are analyzed and given in a form most suitable for model testing of ships. The variation of wave height with Beaufort number is remarkable. Wave periods from 2 to 10 seconds are observed with maximum frequency in the range of 2 to 5 seconds. The heights and period obtained are compared with those obtained by previous workers for the North Atlantic region and Bay of Bengal. The influence of the wave period 2 to 5 seconds on the rolling, pitching and heaving periods of medium size vessels is also discussed.
    Keywords: Oceanography ; sea state ; data collection ; geophysical data ; design wave ; wave period ; wave height ; statistical analysis ; wave statistics ; dynamical oceanography ; Bay of Bengal ; India
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 21-26
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    University of California, Berkeley | Berkeley, CA
    In:  http://aquaticcommons.org/id/eprint/16584 | 29 | 2015-04-27 20:24:53 | 16584 | University of California, Berkeley
    Publication Date: 2021-07-07
    Description: The purpose of this paper is to add to the identification of planktonic forms found in Monterey Bay, and also to compare the composition and population fluctuation with findings of previous years.
    Description: Copyright permission signed by Boone's son is on file with the IAMSLIC archive.
    Keywords: Biology ; Ecology ; Oceanography ; HMLR
    Repository Name: AquaDocs
    Type: monograph , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 22
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    International Collective in Support of Fishworkers | Chennai, India
    In:  icsf@icsf.net | http://aquaticcommons.org/id/eprint/11228 | 25 | 2013-07-05 06:44:37 | 11228 | International Collective in Support of Fishworkers
    Publication Date: 2021-06-29
    Description: This research focuses on the social dimensions of marine conservation, and makes an assessment of the experiences of coastal and fi shing communities with regard to the governance of MPAs in Central America, based on case studies from Honduras, Nicaragua, Costa Rica and Panama. It examines the national contexts of the above countries in relation to the governance of MPAs. Furthermore, it analyzes the social impacts of MPAs on coastal communities by gathering the experiences and the voices of the communities and institutions involved, and reflects on how to build bridges in the search for forms and models of conservation that respect human rights and which are able to successfully integrate into local development efforts without affecting cultural and/or social patterns. To this end, this monograph looks at nine case studies across the region: in Honduras, the Islas de la Bahia-Guanaja Marine National Park, the Cayos Cochinos Marine Archipelago Natural Monument, and the Cuero and Salado Wildlife Refuge; in Nicaragua, the Chacocente Wildlife Refuge; in Costa Rica, the Guanacaste Conservation Area, the Ballena Marine National Park and the Golfo Dulce Responsible Fishing Area; and, in Panama, the Nargana Protected Area, in the Comarca de la Biosfera Guna-Yala, the Bastimentos Island Marine National Park, and Bocas del Toro.
    Keywords: Conservation ; Fisheries
    Repository Name: AquaDocs
    Type: monograph
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    Format: application/pdf
    Format: 160
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    International Collective in Support of Fishworkers | Chennai, India
    In:  icsf@icsf.net | http://aquaticcommons.org/id/eprint/11229 | 25 | 2013-09-01 09:08:46 | 11229 | International Collective in Support of Fishworkers
    Publication Date: 2021-06-29
    Description: This brochure summarizes a series of case studies done in nine countries—Brazil, India, Indonesia, Mexico, Senegal, South Africa, Spain,Tanzania and Thailand—on the role of communities in the planning and implementation of marine protected areas (MPAs).The studies demonstrate that communities can be powerful allies in efforts for conservation and management of coastal and marine resources. They also underline the need for systematic attention, capacity building, funding and other resources for effective implementation of Programme Element 2 on governance, participation, equity, and benefit sharing of the Programme of Work on Protected Areas (PoWPA) of the Convention on Biological Diversity (CBD).
    Keywords: Conservation ; Fisheries ; Sociology
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 1-24
    Format: 24
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    International Collective in Support of Fishworkers | Chennai, India
    In:  icsf@icsf.net | http://aquaticcommons.org/id/eprint/11231 | 25 | 2013-06-20 10:42:00 | 11231 | International Collective in Support of Fishworkers
    Publication Date: 2021-06-24
    Description: The lacunae in fishing-community engagement in the management and governance of marine and coastal protected areas (MCPAs) were discussed in the 2009 Chennai Workshop organized by the International Collective in Support of Fishworkers (ICSF). To continue the discussion, a second, two-day workshop to review existing legal and institutional mechanisms for implemention and monitoring of MCPAs, titled ‘Fishery-dependent Livelihoods, Conservation and Sustainable Use of Biodiversity: The Case of Marine and Coastal Protected Areas in India’, was held in New Delhi during 1-2 March 2012.The objective was to understand the impact of MCPAs on fishing communities, from an environmental-justice and human-rights perspective, and make specific proposals for better conservation while securing the livelihoods of small-scale fishers. The workshop also served to underscore these issues in light of the upcoming Conference of the Parties (COP) to the Convention on Biological Diversity (CBD), to be held at Hyderabad in October 2012.This publication contains the prospectus of the workshop and a report of the proceedings. It will be useful for fishworkers, non-governmental organizations, policymakers, trade unions, researchers and others interested in natural resource management and coastal and fishing communities.
    Description: ISBN 978-93-80802-08-04
    Keywords: Conservation ; Fisheries ; Sociology
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    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)
    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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    Type: monograph
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    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)
    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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    United States Environmental Protection Agency | Washington, DC
    In:  http://aquaticcommons.org/id/eprint/14127 | 9596 | 2020-08-31 17:59:09 | 14127 | Galveston Bay Information Collection
    Publication Date: 2021-06-24
    Description: For the EPA, taking on the role of community helper and partner has been a challenge. As with any change of this magnitude, there has been a lot of trial and error, and important lessons have been learned by us, and our many partners, that are worth sharing. Oftentimes, these lessons have been shared informally through networking at conferences, by phone, or over the internet. This series of Watershed Lessons Learned is an attempt to identify the top lessons and present them in one place. We believe this document meets two real needs. First, it will help readers learn what works and what does not based on past experience. Second, it will assist people in reaching important resources and contacts that exist across the nation that can help them. In terms of using this piece, eash lesson is stand-alone and contains a short description of the lesson, a few examples to illustrate it (with a contact where more information can be obtained) and a list of key contacts and resources associated with the lesson. In addition, we have included in the appendix indices to help guide you - the reader - through the information. This includes answers to commonly asked questions - the ones that we heard over and over again as we developed this piece. In addition, this document is up on our fully searchable website at http://www.epa.gov/owow/lessons if you prefer to see and explore information that way.
    Keywords: Conservation ; Information Management ; watershed management
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    Type: monograph
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    Division of Planning Coordination, Office of the Governor | Austin, TX
    In:  http://aquaticcommons.org/id/eprint/14129 | 9596 | 2020-08-31 18:00:16 | 14129 | Galveston Bay Information Collection
    Publication Date: 2021-06-24
    Description: Many policy decisions which will affect Coastal Zone activities must be made within the near future with inadequate quantitative economic, social, and environmental criteria. It is feasible to have an interim state policy allowing continued economic growth in the Coastal Zone but constraining such activities to coastal environmental units that would receive minimum detrimental environmental impact, thereby retaining as many options as possible for the State in the future. Each coastal environmental unit was evaluated in terms of its natural capability to sustain human use that affects its physical, hydrological, geological, chemical, and biological properties, and is grouped in an appropriate resource capability class. Each coastal environmental unit has at least one human activity which if uncontrolled would exceed the natural capacity of the unit. The problem of pollution of the groundwater aquifers and the lack of controls on groundwater use are emphasized. Other coastal environmental units such as the freshwater input, the coastal barriers, the wetlands and the grassflats, and the oyster reefs are termed threatened because they are in a delicate natural balance, are particularly susceptible to certain uses, and are important in the protection of life, property, or the natural coastal ecosystem. Although the major emphasis in this report is on those activities of man that may detrimentally affect coastal environmental units and resources, compatible uses also are outlined. Hypothetical examples are given to indicate the economic and social consequences arising from the implementation of management tools to lessen detrimental environmental impact. The conclusions outlined present positive steps needed to develop an effective Texas coastal management program.
    Description: Coastal Resources Management Program
    Keywords: Conservation ; Environment ; Management ; Policies ; coastal zone management ; seashore ecology
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    Type: monograph
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    Format: application/pdf
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    Surveillance Section, Field Operations Division, Texas Water Quality Board | Austin, TX
    In:  http://aquaticcommons.org/id/eprint/14158 | 9596 | 2020-08-31 20:22:35 | 14158 | Galveston Bay Information Collection
    Publication Date: 2021-06-24
    Description: The water quality segment report is designed to describe prevailing water quality in a segment and to provide a basis for decision making in the continuing effort to maintain and improve the quality of Texas' surface waters. Periodic updating of the report offers a basis for evaluation the success of past and present programs concerning the segment. In summary, Segment No. 2484 is the entire length of Corpus Christi Inner Harbor, which is a dredged blind canal opening on its eastern end to Corpus Christi Bay. The Inner Harbor is operated and maintained by Nueces County Navigation District No. 1, primarily to provide access for industries to ship traffic in the Gulf of Mexico and Intracoastal Canal. Hydrology is probably most influenced by wind-generated circulation in winter and spring, whereas tidal changes and industrial withdrawals become more important when wind activity is reduced. Storm runoff is potentially an important hydrological factor. The meeting of fresh and salt water, and surface warming, result in the formation of relatively stable layers of water during periods of low wind activity; this stratification enhances the differences in water quality between the surface and the bottom.
    Keywords: Conservation ; Management ; water quality
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    In:  http://aquaticcommons.org/id/eprint/14179 | 9596 | 2020-08-31 20:27:25 | 14179 | Galveston Bay Information Collection
    Publication Date: 2021-06-24
    Keywords: Conservation ; Ecology ; ecology ; conservation ; man-induced effects ; environmental impact
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    Texas Game and Fish Commission | Rockport, TX
    In:  http://aquaticcommons.org/id/eprint/14216 | 9596 | 2020-08-23 22:28:16 | 14216 | Galveston Bay Information Collection
    Publication Date: 2021-06-24
    Description: Ray's technique was used in the determination of the oyster parasite Dermocystidium marinum. Tissue samples were collected from oysters in Galveston Bay, Matagorda Bay, Copano Bay, Aransas Bay, and the Lower Laguna Madre. Only oysters in Galveston Bay and Aransas Bay were found to be infected with the fungus. No serious moralities were observed among the infected oyster populations.
    Keywords: Oceanography ; GBIC ; oysters ; parasites ; parasitism ; fungal diseases ; Dermocystidium marinum
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    Publication Date: 2021-07-09
    Keywords: Atmospheric Sciences ; Earth Sciences ; Oceanography ; PACLIM
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    In:  http://aquaticcommons.org/id/eprint/14314 | 8 | 2014-01-27 21:25:05 | 14314
    Publication Date: 2021-07-10
    Description: During the winter of 1982-1983, a combination of high tides, higher than normal sea level and storm-induced waves were devastating to the coast of California. Damage estimates for public and private property destruction in the coastal counties of California totaled over $100,000,000.Much higher than average sea levels played a very important contributory role in the flooding damage. These unusually high sea levels were due to a combination of higher than normal mixed layer temperature associated with a strong, 2-year El Nino, storm surge due to low atmospheric pressure and persistent winds, and the cumulative effect of steady, "global" rise in relative sea level.Higher than average high tides coincided to an unusual extent with the peak sea levels reached during the numerous storms between November 1982 and March 1983. Important cyclical variations occur in California's mixed tide regime and the consequences of these on extreme tides have not been properly considered previously. In fact, erroneous "predictions" of much higher tides in the 1990's appearing in the popular press during the 1982-83 flooding, caused much public apprehension.
    Keywords: Atmospheric Sciences ; Oceanography ; PACLIM
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    Publication Date: 2021-07-10
    Description: The goal of this work is to examine the properties of recording mechanisms which are common to continuously recording high-resolution natural systems in which climatic signals are imprinted and preserved as proxy records. These systems produce seasonal structures as an indirect response to climatic variability over the annual cycle. We compare the proxy records from four different high-resolution systems: the Quelccaya ice cap of the Peruvian Andes;composite tree ring growth from southern California and the southwestern United States; and the marine varve sedimentation systems in the Santa Barbara basin (off California, United States) and in the Gulf of California, Mexico. An important focus of this work is to indicate how the interannual climatic signal is recorded in a variety of different natural systems with vastly different recording mechanisms and widely separated in space. These high-resolution records are the products of natural processes which should be comparable, to some degree, to human-engineered systems developed to transmit and record physical quantities. We therefore present a simple analogy of a data recording system as a heuristic model to provide some unifying concepts with which we may better understand the formation of the records. This analogy assumes special significance when we consider that natural proxy records are the principal means to extend our knowledge of climatic variability into the past, beyond the limits of instrumentally recorded data.
    Keywords: Atmospheric Sciences ; Earth Sciences ; Oceanography ; PACLIM
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    In:  http://aquaticcommons.org/id/eprint/14326 | 8 | 2014-01-27 23:26:26 | 14326
    Publication Date: 2021-07-10
    Keywords: Oceanography ; PACLIM
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    In:  http://aquaticcommons.org/id/eprint/14409 | 8 | 2014-02-07 22:55:40 | 14409
    Publication Date: 2021-07-10
    Description: EXTRACT (SEE PDF FOR FULL ABSTRACT):A selective but nontheless real record of phytoplankton activity over the Santa Barbara Basin can be obtained from the underlying varved sediments. The phytoplankton groups preserved are: diatoms (frustrules and spores), silicoflagellates, dinoflagellates (cysts) and coccoliths.
    Keywords: Earth Sciences ; Oceanography ; PACLIM
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    In:  http://aquaticcommons.org/id/eprint/14466 | 8 | 2014-02-14 01:14:53 | 14466
    Publication Date: 2021-06-25
    Description: Although the mechanisms of climatic fluctuations are not completely understood, changes in global solar irradiance show a link with regional precipitation. A proposed mechanism for this linkage begins with absorption of varying amounts of solar energy by tropical oceans, which may aid in development of ocean temperature anomalies. These anomalies are then transported by major ocean currents to locations where the stored energy is released into the atmosphere, altering pressure and moisture patterns that can ultimately affect regional precipitation. Correlation coefficients between annual averages of monthly differences in empirically modeled solar-irradiance variations and annual state-divisional precipitation values in the United States for 1950 to 1988 were computed with lag times of 0 to 7 years. The highest correlations (R=0.65) occur in the Pacific Northwest with a lag time of 4 years, which is about equal to the travel time of water within the Pacific Gyre from the western tropical Pacific Ocean to the Gulf of Alaska. With positive correlations, droughts coincide with periods of negative irradiance differences (dry, high-pressure development), and wet periods coincide with periods of positive differences (moist, low-pressure development).
    Keywords: Atmospheric Sciences ; Oceanography ; PACLIM
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    Format: application/pdf
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    In:  http://aquaticcommons.org/id/eprint/14418 | 8 | 2014-02-07 22:27:32 | 14418
    Publication Date: 2021-07-10
    Description: EXTRACT (SEE PDF FOR FULL ABSTRACT):Data were extracted from the U.S. Navy Fleet Numerical Oceanographic Center Master Oceanographic Observation Data Set for a 200 km to 300 km wide coastal strip on the west coast of the United States. These data were averaged for the September through February (winter) and March through August (summer) intervals. The resulting winter temperature anomaly values show the El Nino signal in the CCC [Coastal California Current] as positive temperature anomalies from the surface to at least 300 m.
    Keywords: Oceanography ; PACLIM
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    In:  http://aquaticcommons.org/id/eprint/14431 | 8 | 2014-02-05 23:47:05 | 14431
    Publication Date: 2021-07-11
    Description: EXTRACT (SEE PDF FOR FULL ABSTRACT):The 1983 El Nino resulted in a decrease in the flux of diatoms and planktonic foraminiferans into the Santa Barbara basin. These may both be related to the decrease in productivity and therefore standing crops of these two groups.
    Keywords: Oceanography ; PACLIM
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    In:  vegha16@gmail.com | http://aquaticcommons.org/id/eprint/14502 | 403 | 2014-02-13 04:15:55 | 14502 | United States National Marine Fisheries Service
    Publication Date: 2021-06-26
    Description: The effects of El Niño–Southern Oscillation events on catches of Bigeye Tuna (Thunnus obesus) in the eastern Indian Ocean (EIO) off Java were evaluated through the use of remotely sensed environmental data (sea-surface-height anomaly [SSHA], sea-surface temperature [SST], and chlorophyll a concentration), and Bigeye Tuna catch data. Analyses were conducted for the period of 1997–2000, which included the 1997–98 El Niño and 1999–2000 La Niña events. The empirical orthogonal function (EOF) was applied to examine oceanographic parameters quantitatively. The relationship of those parameters to variations in catch distribution of Bigeye Tuna was explored with a generalized additive model (GAM). The mean hook rate was 0.67 during El Niño and 0.44 during La Niña, and catches were high where SSHA ranged from –21 to 5 cm, SST ranged from 24°C to 27.5°C, and chlorophyll-a concentrations ranged from 0.04 to 0.16 mg m–3. The EOF analysis confirmed that the 1997–98 El Niño affected oceanographic conditions in the EIO off Java. The GAM results indicated that SST was better than the other environmental factors (SSHA and chlorophyll-a concentration) as an oceanographic predictor of Bigeye Tuna catches in the region. According to the GAM predictions, the highest probabilities (70–80%) for Bigeye Tuna catch in 1997–2000 occurred during oceanographic conditions during the 1997–98 El Niño event.
    Keywords: Biology ; Ecology ; Fisheries ; Oceanography
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    NOAA/National Marine Fisheries Service | Silver Spring, MD
    In:  http://aquaticcommons.org/id/eprint/14565 | 403 | 2014-02-19 22:33:38 | 14565 | United States National Marine Fisheries Service
    Publication Date: 2021-06-28
    Description: The Ecological Society of America and NOAA's Offices of Habitat Conservation and Protected Resources sponsored a workshop to develop a national marine and estuarine ecosystem classification system. Among the 22 people involved were scientists who had developed various regional classification systems and managers from NOAA and other federal agencies who might ultimately use this system for conservation and management. The objectives were to: (1) review existing global and regional classification systems; (2) develop the framework of a national classification system; and (3) propose a plan to expand the framework into a comprehensive classification system. Although there has been progress in the development of marine classifications in recent years, these have been either regionally focused (e.g., Pacific islands) or restricted to specific habitats (e.g., wetlands; deep seafloor). Participants in the workshop looked for commonalties across existing classification systems and tried to link these using broad scale factors important to ecosystem structure and function.
    Keywords: Conservation ; Ecology ; Policies
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    Type: monograph
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    NOAA/National Centers for Coastal Ocean Science | Beaufort, NC
    In:  http://aquaticcommons.org/id/eprint/14939 | 403 | 2014-03-17 18:38:51 | 14939 | United States National Ocean Service
    Publication Date: 2021-06-29
    Description: Boat wakes in the Atlantic Intracoastal Waterway (AIWW) of North Carolina occur in environments not normally subjected to (wind) wave events, making sections of AIWW potentially vulnerable to extreme wave events generated by boat wakes. The Snow’s Cut area that links the Cape Fear River to the AIWW is an area identified by the Wilmington District of the U.S. Army Corps of Engineers as having significant erosion issues; it was hypothesized that this erosion could be being exacerbated by boat wakes. We compared the boat wakes for six combinations of boat length and speed with the top 5% wind events. We also computed the benthic shear stress associated with boat wakes and whether sediment would move (erode) under those conditions. Finally, we compared the transit time across Snow’s Cut for each speed. We focused on two size classes of V-hulled boats (7 and 16m) representative of AIWW traffic and on three boat speeds (3, 10 and 20 knots). We found that at 10 knots when the boat was plowing and not yet on plane, boat wake height and potential erosion was greatest. Wakes and forecast erosion were slightly mitigated at higher, planing speeds. Vessel speeds greater than 7 knots were forecast to generate wakes and sediment movement zones greatly exceeding that arising from natural wind events. We posit that vessels larger than 7m in length transiting Snow’s Cut (and likely many other fetch-restricted areas of the AIWW) frequently generate wakes of heights that result in sediment movement over large extents of the AIWW nearshore area, substantially in exceedance of natural wind wave events. If the speed, particularly of large V-hulled vessels (here represented by the 16m length class), were reduced to pre-plowing levels (~ 7 knots down from 20), transit times for Snow’s Cut would be increased approximately 10 minutes but based on our simulations would likely substantially reduce the creation of erosion-generating boat wakes. It is likely that boat wakes significantly exceed wind wave background for much of the AIWW and similar analyses may be useful in identifying management options.
    Keywords: Earth Sciences ; Management ; Oceanography
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    Type: monograph
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    Comité Oceanográfico Nacional | La Habana, Cuba
    In:  http://aquaticcommons.org/id/eprint/14976 | 1545 | 2014-05-09 22:58:38 | 14976 | Acuario Nacional de Cuba
    Publication Date: 2021-06-30
    Description: Contiene los trabajos presentados, el programa científico y el perfil de instituciones marinas cubanas. Contains abstracts of the papers presented, the scientific program and the profile of Cuban marine institutions.
    Description: IAEA International Atomic Energy Agency
    Keywords: Conservation ; Ecology ; Fisheries ; Oceanography ; coastal zone ; marine resources ; aquaculture ; aquariology education ; genetics ; marine pollution ; microbiology ; zona costera ; recursos marinos ; acuacultura ; acuariología ; educación ; genética ; contaminación marina ; microbiología ; marine biodiversity ; biodiversidad marina ; congresos ; congress ; manejo integrado de la zona costera ; integrated management of the coastal zone ; simposio ; symposium ; cambio climático ; climate change ; Centro de Ingeniería y Manejo Ambiental de Bahías y Costas- CIMAB ; Instituto de Oceanología ; Instituto de Geología y Paleontología ; Acuario Nacional de Cuba ; taller ; workshop ; pesca ; fishery ; Cuba ; Congreso Latinoamericano ; ColacMarCuba ; Latin American Congress ; University for all ; Universidad para todos ; tabloides ; Conozcamos el Mar ; El Mundo subterráneao ; El Mar y sus recursos ; mamíferos marinos ; marine mammals ; biotechnology ; biotecnología ; marine ecosystem ; ecosistemas marinos ; marine sciences ; ciencias marinas ; CIM ; CIP ; conferencias ; conferences ; mesas redondas ; courses ; cursos.
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    Publication Date: 2021-06-29
    Description: Los peces constituyen uno de los atractivos principales en los arrecifes coralinos para el buceoturístico, por lo cual resulta necesario monitorear su abundancia y valores estéticos. El objetivo de estainvestigación fue evaluar el estado de conservación de las asociaciones de peces arrecifales en cuatro delos principales polos turísticos del Archipiélago Sabana-Camagüey, Cuba en el año 2010. Semuestrearon 23 sitios de buceo turísticos en áreas adyacentes a las regiones de Varadero (5 sitios),cayos de Villa Clara (6 sitios), Cayo Coco (6 sitios) y Santa Lucia (6 sitios). En cada uno de ellos serealizaron seis réplicas de censos visuales de todas las especies de peces en recorridos lineales de 50 mde largo por 2 m de ancho, ocupando un área total de 600 m2. El puntaje más alto de conservación lopresentó los cayos de Villa Clara (37), siguiéndole en orden decreciente Cayo Coco (35), y con valoresmás bajos Varadero (24) y Santa Lucia (22). Los puntajes de las cuatro regiones fueron inferiores a losencontrados en otros arrecifes de Cuba y el Caribe. Los valores de Varadero y Santa Lucia secorrespondieron con los de arrecifes de hábitats degradados y sometidos a explotación pesquera. Engeneral, en la mayoría de las regiones predominaron peces de talla pequeña (〈20 cm) pertenecientes alas familias Pomacentridae y Labridae y hubo poca abundancia de peces carnívoros y herbívoros demediana (20-40 cm) y gran talla (〉40 cm).ABSTRACTFish are one of the main attractions on coral reefs for diving tourism; therefore, it is necessary tomonitor their condition and aesthetic values. The objective of this research was to evaluate the status ofreef fish assemblages in four tourist areas of Sabana-Camaguey Archipelago, Cuba in 2010. Twentythreetourist diving sites were sampled in adjacent areas to regions of Varadero (five sites), Villa Clarakeys (6 sites), Coco key (6 sites) and Santa Lucia (6 sites). In each region, six replicated visual census ofall fish species were conducted along belt transects of 50 m length and 2 m width, occupying a total areaof 600 m2. The highest conservation score was obtained by Villa Clara keys (37), followed in decreasingorder by Coco key (35), and with lower values Varadero (24) and St. Lucia (22). The scores of the fourregions were lower than the values of other Cuban and Caribbean reefs. The values of Varadero andSanta Lucia corresponded to reefs with degraded habitats and subject to overfishing. In general, small fish(〈 20 cm) from families Pomacentridae and Labridae, and low abundance of carnivore and herbivore fishof middle (20-40 cm) and large size (〉 40 cm) predominated in most regions.
    Description: GEF-PNUD
    Keywords: Conservation ; Ecology ; Cayo Coco ; Santa Lucia ; GEF-PNUD ; Varadero
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  • 69
    Publication Date: 2021-06-30
    Description: Translated by S. Pearson and F.H. Fay
    Keywords: Biology ; Conservation
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    Type: monograph
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  • 70
    Publication Date: 2021-06-30
    Description: RESUMENSe comparó el grado de resiliencia de seis crestas arrecifales del este del golfo de Batabanó, Cuba. Tres fueron del norte del golfo de Cazones (Tramo Norte) y las restantes, del oeste de Cayo Largo (Tramo Sur). Las del primer tramo fueron las de faro Cazones, Norte de la cresta de cayo Diego Pérez y de faro Diego Pérez. Las otras tres fueron las de cayo Rico, arrecifes Los Ballenatos y arrecifes Hijos de Los Ballenatos. Se emplearon los indicadores biológicos del Protocolo AGRRA. El Tramo Norte presentó las crestas más resilientes, sobre todo la de faro Cazones. Las del Tramo Sur no exhibieron resiliencia. Fueron varios e interrelacionados, los factores aparentemente más determinantes en la resiliencia. Entre estos, cuatro se consideraron como fuerzas motrices: resguardo contra el oleaje, circulación habitual giratoria ciclónica en la ensenada de Cazones, entrada de nutrientes provenientes tanto de la ciénaga de Zapata como de aguas profundas, y abundancia del erizo herbívoro Diadema antillarum. Los demás factores, desencadenados por los anteriores y también interrelacionados, fueron, al parecer la menor afectación por oleaje y sedimentos, estabilización de fragmentos vivos de coral, índices favorables de macroalgas bentónicas, cierta retención de nutrientes y plancton, más alimentación heterotrófica de los corales, mayor auto reclutamiento de corales y del erizo Diadema; mejores condiciones para el asentamiento y viabilidad de los reclutas, y para el recapamiento de corales; mayor crecimiento y recuperación de los corales y mejores condiciones térmicas contra el blanqueamiento de coralesABSTRACTThe degree of resilience of six reef crest sites was compared at the east of the Gulf of Batabano, Cuba. Three of them were located north of the Gulf of Cazones (Northern Stretch), while the remaining ones were west of Cayo Largo (Southern Stretch). Those of the Northern Stretch were “Faro Cazones”, north of the crest of cayo Diego Pérez and “Faro Diego Pérez”. The remaining sites were those of the cayo Rico, Los Ballenatos reefs, and Hijos de Los Ballenatos reefs. The AGRRA biological indicators were applied. The Northern Stretch presented the most resilient crests, mainly that of “Faro Cazones”. Those of the Southern Stretch did not reveal signs of resilience. Several interrelated factors were apparently more linked to resilience. Four of them were considered as driving forces: shelter from waves, usual cyclonic revolving water circulation in the Ensenada de Cazones, nutrient input from the Zapata swamp and deep water, and the abundance of the herbivore sea urchin Diadema antillarum. Triggered by these driving forces, the remaining factors apparently were less effect of waves and sediments, stabilization of live coral fragments, favorable benthic macro-algae indices, some retention of nutrient and plankton, increased coral heterotrophic feeding; better conditions for recruit settlement and viability, and for coral re-sheeting; faster coral growth and recuperation and better thermal conditions against coral bleaching.
    Description: GEF-PNUD
    Keywords: Conservation ; Ecology ; Iniciativa Trinacional Cuba-México-EE.UU. ; cambio climático ; Conservación del Golfo de México ; Caribe Occidental
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    In:  tom.matthews@myfwc.com | http://aquaticcommons.org/id/eprint/15025 | 403 | 2014-06-02 18:21:53 | 15025 | United States National Ocean Service
    Publication Date: 2021-07-01
    Description: The fishery for spiny lobster Panulirus argus in the Florida Keys National Marine Sanctuary is well chronicled, but little information is available on the prevalence of lost or abandoned lobster traps. In 2007, towed-diver surveys were used to identify and count pieces of trap debris and any other marine debris encountered. Trap debris density (debris incidences/ha) in historic trap-use zones and in representative benthic habitats was estimated. Trap debris was not proportionally distributed with fishing effort. Coral habitats had the greatest density of trap debris despite trap fishers’ reported avoidance of coral reefs while fishing. The accumulation of trap debris on coral emphasizes the role of wind in redistributing traps and trap debris in the sanctuary. We estimated that 85,548 ± 23,387 (mean ± SD) ghost traps and 1,056,127 ± 124,919 nonfishing traps or remnants of traps were present in the study area. Given the large numbers of traps in the fishery and the lack of effective measures for managing and controlling the loss of gear, the generation of trap debris will likely continue in proportion to the number of traps deployed in the fishery. Focused removal of submerged trap debris from especially vulnerable habitats such as reefs and hardbottom, where trap debris density is high, would mitigate key habitat issues but would not address ghost fishing or the cost of lost gear.
    Keywords: Conservation ; Ecology ; Fisheries
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  • 72
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    In:  http://aquaticcommons.org/id/eprint/15041 | 403 | 2014-05-27 14:12:39 | 15041 | United States National Marine Fisheries Service
    Publication Date: 2021-07-01
    Description: Annual mean fork length (FL) of the Pacific stock of chub mackerel (Scomber japonicus) was examined for the period of 1970–97. Fork length at age 0 (6 months old) was negatively correlated with year-class strength which fluctuated between 0.2 and 14 billion in number for age-0 fish. Total stock biomass was correlated with FL at age but was not a significant factor. Sea surface temperature (SST) between 38–40°N and 141–143°E during April–June was also negatively correlated with FL at age 0. A modified von Bertalanffy growth model that incorporated the effects of population density and SST on growth was well fitted to the observed FL at ages. The relative FL at age 0 for any given year class was maintained throughout the life span. The variability in size at age in the Pacific stock of chub mackerel is largely attributable to growth during the first six months after hatching.
    Keywords: Ecology ; Fisheries ; Oceanography
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  • 73
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    In:  http://aquaticcommons.org/id/eprint/14661 | 403 | 2014-02-26 20:16:54 | 14661 | United States National Ocean Service
    Publication Date: 2021-07-01
    Description: Reef fish distributions are patchy in time and space with some coral reef habitats supporting higher densities (i.e., aggregations) of fish than others. Identifying and quantifying fish aggregations (particularly during spawning events) are often top priorities for coastal managers. However, the rapid mapping of these aggregations using conventional survey methods (e.g., non-technical SCUBA diving and remotely operated cameras) are limited by depth, visibility and time. Acoustic sensors (i.e., splitbeam and multibeam echosounders) are not constrained by these same limitations, and were used to concurrently map and quantify the location, density and size of reef fish along with seafloor structure in two, separate locations in the U.S. Virgin Islands. Reef fish aggregations were documented along the shelf edge, an ecologically important ecotone in the region. Fish were grouped into three classes according to body size, and relationships with the benthic seascape were modeled in one area using Boosted Regression Trees. These models were validated in a second area to test their predictive performance in locations where fish have not been mapped. Models predicting the density of large fish (≥29 cm) performed well (i.e., AUC = 0.77). Water depth and standard deviation of depth were the most influential predictors at two spatial scales (100 and 300 m). Models of small (≤11 cm) and medium (12–28 cm) fish performed poorly (i.e., AUC = 0.49 to 0.68) due to the high prevalence (45–79%) of smaller fish in both locations, and the unequal prevalence of smaller fish in the training and validation areas. Integrating acoustic sensors with spatial modeling offers a new and reliable approach to rapidly identify fish aggregations and to predict the density large fish in un-surveyed locations. This integrative approach will help coastal managers to prioritize sites, and focus their limited resources on areas that may be of higher conservation value.
    Keywords: Conservation ; Ecology ; Fisheries ; Management
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  • 74
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    In:  http://aquaticcommons.org/id/eprint/14680 | 403 | 2014-02-28 19:37:37 | 14680 | United States National Ocean Service
    Publication Date: 2021-07-01
    Description: Serial, cyclonic, mesoscale eddies arise just north of the Charleston Bump, a topographical rise on the continentalslope and Blake Plateau, and characterize the U.S. outer shelf and upper slope in the region of the Charleston Gyre.This region was transected during the winters of 2000, 2001, and 2002, and hydrographic data and larval fishes werecollected. The hydrodynamics of the cyclonic eddies of the Charleston Gyre shape the distribution of larval fishes bymixing larvae from the outer continental shelf and the Gulf Stream and entraining them into the eddy circulation atthe peripheral margins, the wrap-around filaments. Over all years and transects (those that intercepted eddies andthose that did not), chlorophyll a concentrations, zooplankton displacement volumes, and larval fish concentrations were positively correlated. Chlorophyll a concentrations were highest in filaments that wrapped around eddies, and zooplankton displacement volumes were highest in the continental shelf–Gulf Stream–frontal mix. Overall, the concentration of all larval fishes declined from inshore to offshore with highest concentrations occurring over the outer shelf. Collections produced larvae from 91 fish families representing continental shelf and oceanic species. The larvae of shelf-spawned fishes—Atlantic Menhaden Brevoortia tyrannus, Round Herring Etrumeus teres, Spot Leiostomus xanthurus, and Atlantic Croaker Micropogonias undulatus—were most concentrated over the outer shelf and in the continental shelf–Gulf Stream–frontal mix. The larvae of ocean-spawned fishes—lanternfishes, bristlemouths, and lightfishes—were more evenly dispersed in low concentrations across the outer shelf and upper slope, the highest typically in the Gulf Stream and Sargasso Sea, except for lightfishes that were highest in the continental shelf–Gulf Stream–frontal mix. Detrended correspondence analysis rendered groups of larval fishes that corresponded with a gradient between the continental shelf and Gulf Stream and Sargasso Sea. Eddies propagate northeastward with a residence time on the outer shelf and upper slope of ∼1 month, the same duration as the larval period of most fishes. The pelagic habitat afforded by eddies and fronts of the Charleston Gyre region can be exploited as nursery areas for feeding and growth of larval fishes within the southeastern Atlantic continental shelf ecosystem of the U.S. Eddies, and the nursery habitat they provide, translocate larvae northeastward.
    Keywords: Ecology ; Fisheries ; Oceanography
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    NOAA/National Centers for Coastal Ocean Science | Silver Spring, MD
    In:  http://aquaticcommons.org/id/eprint/14700 | 403 | 2014-02-26 21:20:56 | 14700 | United States National Ocean Service
    Publication Date: 2021-07-02
    Description: The Tortugas Integrated Biogeographic Assessment presents a unique analysis of demographic changes in living resource populations, as well as societal and socioeconomic benefits that resulted from the Tortugas Ecological Reserves during the first five years after their implementation. In 2001, state and federal agencies established two no-take reserves within the region as part of the Florida Keys National Marine Sanctuary. The northern reserve (Tortugas Ecological Reserve North) was established adjacent to the DryTortugas National Park, which was first declared a national monument in 1935. The reserves were designed to protect a healthy coral reef ecosystem that supports diverse faunal assemblages and fisheries, serves as important spawning grounds for groupers and snappers, and includes essential feeding and breeding habitats for seabirds. The unique ecological qualities of the Tortugas region were recognized as far back as 1850, and it remains an important ecosystem and research area today.The two main goals of the Tortugas Ecological Reserve Integrated Ecological Assessment were: 1) to determineif demographic changes such as increases in abundance, average size and spawning potential of exploited populations occurred in the Tortugas region after reserve implementation; and 2) whether short-term economic losses occurred to fishers displaced by the reserve. This project utilized a biogeographic approach in which information on the physical features (i.e., habitat) and oceanographic patterns were first used to determine the spatial distribution of selected fish populations within and outside the Tortugas Ecological Reserve. Before-and-after reserve implementation comparisons of selected fish populations were then conducted to determine if demographic changes occurred in reef fish assemblages. These comparisonswere done for the Tortugas region and also for a subset of available habitats within the Tortugas Ecological Reserve Study Area. Social and economic impacts of the reserves were determined through: 1) analyses of commercial landings and revenues from fishers, operating in the Tortugas region before and after reserve implementation and 2) surveys of recreational tour guides. Analyses of the commercial landings and revenues excluded areas inside Dry Tortugas National Park because commercial fishing has been prohibitedwithin park boundaries since 1992. Key findings and outcomes of this integrated ecological assessment areorganized by chapter and listed below.
    Keywords: Conservation ; Fisheries ; Management
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  • 76
    Publication Date: 2021-07-02
    Description: This project characterized and assessed the condition of coastal water resources in the Dry Tortugas National Park (DRTO) located in the Florida Keys. The goal of the assessment was to: (1) identify the state of knowledge of natural resources that exist within the DRTO, (2) summarize the state of knowledge about natural and anthropogenic stressors and threats that affected these resources, and (3) describe strategies being implemented by DRTO managers to meet their resource management goals.The park, located in the Straits of Florida 113 km (70 miles) west of Key West, is relatively small (269 square kilometers) with seven small islands and extensive shallow water coral reefs. Significant natural resources within DRTO include coastal and oceanic waters, coral reefs, reef fisheries, seagrass beds, and sea turtle and bird nesting habitats. This report focuses on marine natural resources identified by DRTO resource managers and researchers as being vitally important to the Tortugas region and the wider South Florida ecosystem. Selected marine resources included physical resources (geology, oceanography, and water quality) and biological resources (coral reef and hardbottom benthic assemblages, seagrass and algal communities, reef fishes and macro invertebrates, and wildlife [sea turtles and sea-birds]). In the past few decades, some of these resources have deteriorated because of natural and anthropogenic factors that are local and global in scale. To meet mandated goals (Chapter 1), resource managers need information on: (1) the types and condition of natural and cultural resources that occur within the park and (2) the stressors and threats that can affect those resources. This report synthesizes and summarizes information on: (1) the status of marine natural resources occurring at DRTO; and (2) types of stressors and threats currently affecting those resources at the DRTO.Based on published information, the assessment suggests that marine resources at DRTO and its surrounding region are affected by several stressors, many of which act synergistically. Of the nine resource components assessed, one resource category – water quality – received an ecological condition ranking of "Good"; two components – the nonliving portion of coral reef and hardbottom and reef fishes – received a rating of "Caution"; and two components – the biotic components of coral reef and hardbottom substrates and sea turtles – received a rating of "Significant concern" (Table E-1). Seagrass and algal communities and seabirds were unrated for ecological condition because the available information was inadequate. The stressor category of tropical storms was the dominant and most prevalent stressor in the Tortugas region; it affected all of the resource components assessed in this report. Commercial and recreational fishing were also dominant stressors and affected 78% of the resource components assessed. The most stressed resource was the biotic component of coral reef and hardbottom resources, which was affected by 76% of the stressors. Water quality was the least affected; it was negatively affected by 12% of stressors. The systematic assessment of marine natural resources and stressors in the Tortugas region pointed to several gaps in the information. For example, of the nine marine resource components reviewed in this report, the living component of coral reefs and hardbottom resources had the best rated information with 25% of stressor categories rated "Good" for information richness. In contrast, the there was a paucity of information for seagrass and algal communities and sea birds resource components.
    Keywords: Biology ; Conservation ; Ecology ; Fisheries ; Management
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  • 77
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    In:  http://aquaticcommons.org/id/eprint/14712 | 403 | 2020-10-11 21:39:04 | 14712 | United States National Ocean Service
    Publication Date: 2021-07-02
    Description: The purpose of this project is to model seabird flock size data to provide recommendations to the Bureau of Ocean and Energy Management for offshore wind turbine placement. Our hypothesis is that ecological characteristics influence which statistical distribution will provide the best fit toseabird flock size data. To test this, seabird species can be grouped based on shared ecological traits, such as foraging mechanism or diet.
    Description: 33 page file also contains the Programme for the meeting.
    Keywords: Conservation ; Management
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    NOAA/NOC NCCOS | Silver Spring, MD
    In:  http://aquaticcommons.org/id/eprint/14713 | 403 | 2014-02-21 21:43:07 | 14713 | United States National Ocean Service
    Publication Date: 2021-07-02
    Description: BOEM
    Description: USGS
    Description: Powerpoint presentation - 23 slides
    Keywords: Conservation ; Management
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  • 79
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    In:  http://aquaticcommons.org/id/eprint/14714 | 403 | 2014-02-21 21:42:29 | 14714 | United States National Ocean Service
    Publication Date: 2021-07-02
    Description: Powerpoint presentation
    Keywords: Conservation ; Management
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  • 80
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    NOAA/Centers for Coastal Ocean Science | Silver Spring, MD
    In:  http://aquaticcommons.org/id/eprint/14760 | 403 | 2014-02-26 21:17:06 | 14760 | United States National Ocean Service
    Publication Date: 2021-07-03
    Description: The Chesapeake Bay is the largest estuary in theUnited States. It is a unique and valuable national treasurebecause of its ecological, recreational, economicand cultural benefits. The problems facing the Bay arewell known and extensively documented, and are largelyrelated to human uses of the watershed and resourceswithin the Bay. Over the past several decades as theorigins of the Chesapeake’s problems became clear, citizensgroups and Federal, State, and local governmentshave entered into agreements and worked together torestore the Bay’s productivity and ecological health.In May 2010, President Barack Obama signed ExecutiveOrder number 13508 that tasked a team of Federalagencies to develop a way forward in the protectionand restoration of the Chesapeake watershed. Successof both State and Federal efforts will depend on havingrelevant, sound information regarding the ecology andfunction of the system as the basis of management anddecision making. In response to the executive order, theNational Oceanic and Atmospheric Administration’sNational Centers for Coastal Ocean Science (NCCOS)has compiled an overview of its research in ChesapeakeBay watershed.NCCOS has a long history of Chesapeake Bay research,investigating the causes and consequences of changesthroughout the watershed’s ecosystems. This documentpresents a cross section of research results that have advanced the understanding of the structure and functionof the Chesapeake and enabled the accurate and timelyprediction of events with the potential to impact bothhuman communities and ecosystems. There are three main focus areas: changes in land use patterns in the watershed and the related impacts on contaminant and pathogen distribution and concentrations; nutrient inputs and algal bloom events; and habitat use and life history patterns of species in the watershed.Land use changes in the Chesapeake Bay watershed have dramatically changed how the system functions. Acomparison of several subsystems within the Bay drainageshas shown that water quality is directly related to land use and how the land use affects ecosystem health of the rivers and streams that enter the Chesapeake Bay. Across the Chesapeake as a whole, the rivers that drain developed areas, such as the Potomac and James rivers, tend to have much more highly contaminated sediments than does the mainstem of the Bay itself. In addition to what might be considered traditional contaminants, such as hydrocarbons, new contaminants are appearing in measurable amounts. At fourteen sites studied in the Bay, thirteen different pharmaceuticals were detected. The impact of pharmaceuticals on organisms and the people who eat them is still unknown. The effects of water borne infections on people and marine life are known, however, and the exposure to certain bacteria is a significant health risk. A model is now available that predicts the likelihood of occurrence of a strain of bacteria known as Vibrio vulnificus throughout Bay waters.
    Keywords: Conservation ; Ecology ; Fisheries ; Management
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    NOAA/National Centers for Coastal Ocean Science | Charleston, SC
    In:  http://aquaticcommons.org/id/eprint/14762 | 403 | 2014-02-26 21:14:38 | 14762 | United States National Ocean Service
    Publication Date: 2021-07-03
    Description: In June 2008, the NOAA National Ocean Service (NOS), in conjunction with the EPA National Health and Environmental Effects Laboratory (NHEERL), conducted an assessment of the status of ecological condition of soft-bottom habitat and overlying waters within the boundaries of Stellwagen Bank National Marine Sanctuary (SBNMS). The sanctuary lies approximately 20 nautical miles east of Boston, MA in the southwest Gulf of Maine between Cape Ann and Cape Cod and encompassing 638 square nautical miles (2,181 km2). A total of 30 stations were targeted for sampling using standard methods and indicators applied in prior NOAA coastalstudies and EPA’s Environmental Monitoring and Assessment Program (EMAP) and National Coastal Assessment (NCA). A key feature adopted from these studies was the incorporation of a random probabilistic sampling design. Such a design provides a basis for making unbiased statistical estimates of the spatial extent of ecological condition relative to various measured indicators and corresponding thresholds of concern. Indicators included multiple measures of water quality, sediment quality, and biological condition (benthic fauna, fish tissue contaminant levels).Depths ranged from 31 – 137 m throughout the study area. About 76 % of the area had sediments composed of sands (〈 20 % silt-clay), 17 % of the area was composed of intermediate muddy sands (20 – 80 % silt-clay), and 7 % of the sampled area consisted of mud (〉 80 % siltclay). About 70 % of the area (represented by 21 sites) had sediment total organic carbon (TOC) concentrations 〈 5 mg/g and all but one site (located in Stellwagen Basin) had levels of TOC 〈 20 mg/g, which is well below the range potentially harmful to benthic fauna (〉 50 mg/g).Surface salinities ranged from 30.6 – 31.5 psu, with the majority of the study region (approximately 80 % of the area) having surface salinities between 30.8 and 31.4 psu. Bottom salinities varied between 32.1 and 32.5 psu, with bottom salinities at all sites having values above the range of surface salinities. Surface-water temperatures varied between 12.1 and 16.8 ºC, while near-bottom waters ranged in temperature from 4.4 – 6.2 ºC. An index of densitystratification (Δσt) indicated that the waters of SBNMS were stratified at the time of sampling. Values of Δσt at 29 of the 30 sites sampled in this study (96.7 % of the study area) varied from 2.1 – 3.2, which is within the range considered to be indicative of strong vertical stratification (Δσt 〉 2) and typical of the western Gulf of Maine in summer.Levels of dissolved oxygen (DO) were confined to a fairly narrow range in surface (8.8 – 10.4 mg/L) and bottom (8.5 – 9.6 mg/L) waters throughout the survey area. These levels are within the range considered indicative of good water quality (〉 5 mg/L) with respect to DO. None of these waters had DO at low levels (〈 2 mg/L) potentially harmful to benthic fauna and fish.
    Keywords: Conservation ; Ecology ; Fisheries ; Management
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    ESRI | Redlands, CA
    In:  http://aquaticcommons.org/id/eprint/14770 | 403 | 2014-04-26 19:01:54 | 14770 | United States National Ocean Service
    Publication Date: 2021-07-03
    Description: Ecologic researchers are modeling the impact of vessel grounding to seagrass beds using GIS in the Florida Keys National Marine Sanctuary. The surface creation tools in the ArcGIS 3D Analyst extension help assess both the damage and recovery of these seagrass beds.
    Keywords: Ecology ; Management ; Oceanography
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    NOAA/National Centers for Coastal Ocean Science | Charleston, SC
    In:  http://aquaticcommons.org/id/eprint/14778 | 403 | 2014-02-27 19:42:59 | 14778 | United States National Ocean Service
    Publication Date: 2021-07-03
    Description: Remotely operated vehicle (ROV) surveys were conducted from NOAA’s state-of-the-art Fisheries Survey Vessel (FSV) Bell M. Shimada during a six-day transit November 1-5, 2010 between San Diego, CA and Seattle, WA. The objective of this survey was to locate and characterize deep-sea coral and sponge ecosystems at several recommended sites insupport of NOAA’s Coral Reef Conservation Program. Deep-sea corals and sponges were photographed and collected whenever possible using the Southwest Fisheries Science Center’s (SWFSC) Phantom ROV ‘Sebastes’ (Fig. 1).The surveyed sites were recommended by National Marine Sanctuary (NMS) scientists at Monterey Bay NMS, Gulf of the Farallones NMS, and Olympic Coast NMS (Fig. 2). The specific sites were: Sur Canyon, The Football, Coquille Bank, and Olympic Coast NMS. During each dive, the ROV collected digital still images, video, navigation, and along-track conductivity-temperature-depth (CTD), and optode data. Video and high-resolution photographs were used to quantify abundance of corals, sponges, and associated fishes and invertebrates to the lowest practicable taxonomic level, and also to classify the seabed by substrate type. A reference laser system was used to quantify area searched and estimate the density of benthic fauna.
    Keywords: Ecology ; Fisheries ; Management ; Oceanography
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    In:  http://aquaticcommons.org/id/eprint/14787 | 403 | 2014-02-27 22:40:29 | 14787 | United States National Ocean Service
    Publication Date: 2021-06-25
    Description: Marine protected areas (MPAs) represent a form of spatial management, and geospatial information on living marine resources and associated habitat is extremely important to support best management practices in a spatially discrete MPA. Benthic habitat maps provide georeferenced information on the geomorphic structure and biological cover types in the marine environment. This information supports an enhanced understanding of ecosystem function and species habitat utilization patterns. Benthic habitat maps are most useful for marine management and spatial planning purposes when they are created at a scale that is relevant to management actions. We sought to improve the resolution of existing benthic habitat maps created during a regional mapping effort in Hawai`i. Our results complemented these existing regional maps and provided more detailed, finer-scale habitat maps for a network of MPAs in West Hawai`i. The map products created during this study allow local planners and managers to extract information at a spatial scale relevant to the discrete management units, and appropriate for local marine management efforts on the Kona Coast. The resultant benthic habitat maps were integrated in a geographic information system (GIS) that also included aerial imagery, underwater video, MPA regulations, summarized ecological data and other relevant and spatially explicit information. The integration of the benthic habitat maps with additional “value added” geospatial information into a dynamic GIS provide a decision support tool with pertinent marine resource information available in one central location and support the application of a spatial approach to the management of marine resources. Further, this work can serve as a case study to demonstrate the integration of remote sensing products and GIS tools at a fine spatial scale relevant to local-level marine spatial planning and management efforts.
    Keywords: Conservation ; Management ; Planning
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    In:  http://aquaticcommons.org/id/eprint/14822 | 8 | 2014-12-10 22:52:53 | 14822
    Publication Date: 2021-06-25
    Description: A distinct, 1- to 2-cm-thick flood deposit found in Santa Barbara Basin with a varve-date of 1605 AD ± 5 years testifies to an intensity of precipitation that remains unmatched for later periods when historical or instrumental records can be compared against the varve record. The 1605 AD ± 5 event correlates well with Enzel's (1992) finding of a Silver Lake playa perennial lake at the terminus of the Mojave River (carbon-14-dated 1560 AD ± 90 years), in relative proximity to the rainfall catchment area draining into Santa Barbara Basin. According to Enzel, such a persistent flooding of the Silver Lake playa occurred only once during the last 3,500 years and required a sequence of floods, each comparable in magnitude to the largest floods in the modern record. To gain confidence in dating of the 1605 AD ± 5 event, we compare Southern California's sedimentary evidence against historical reports and multi-proxy time-series that indicate unusual climatic events or are sensitive to changes in large-scale atmospheric circulation patterns. The emerging pattern supports previous suggestions that the first decade of the 17th century was marked by a rapid cooling of the Northern Hemisphere, with some indications for global coverage. A burst of volcanism and the occurrence of El Nino seem to have contributed to the severity of the events. The synopsis of the 1605 AD ± 5 years flood deposit in Santa Barbara Basin, the substantial freshwater body at Silver Lake playa, and much additional paleoclimatic, global evidence testifiesfor an equatorward shift of global wind patterns as the world experienced an interval of rapid, intense, and widespread cooling.
    Keywords: Atmospheric Sciences ; Earth Sciences ; Limnology ; Oceanography ; PACLIM ; dendrochronology
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    In:  richard.stumpf@noaa.gov | http://aquaticcommons.org/id/eprint/14834 | 403 | 2014-02-28 22:29:15 | 14834 | United States National Ocean Service
    Publication Date: 2021-06-26
    Description: The band-by-band vicarious calibration of on-orbit satellite ocean color instruments, such as SeaWiFS and MODIS, using ground-based measurements has significant residual uncertainties. This paper applies spectral shape and population statistics to tune the calibration of the blue bands against each other to allow examination of the interband calibration and potentially provide an analysis of calibration trends. This adjustment does not require simultaneous matches of ground and satellite observations. The method demonstrates the spectral stability of the SeaWiFS calibration and identifies a drift in the MODIS instrument onboard Aqua that falls within its current calibration uncertainties.
    Keywords: Oceanography
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    NOAA/National Centers for Coastal Ocean Science | Silver Spring, MD
    In:  http://aquaticcommons.org/id/eprint/14840 | 403 | 2014-03-04 22:05:00 | 14840 | United States National Ocean Service
    Publication Date: 2021-06-26
    Description: We have recently exchanged and integrated into a single database tag detections for conch, teleost and elasmobranch fish from four separately maintained arrays in the U.S. Virgin Islands including the NMFS queen conch array (St. John nearshore), NOAA’s Biogeography Branch array (St. John nearshore & midshelf reef); UVI shelf edge arrays (Marine Conservation District, Grammanik & other shelf edge); NOAA NMFS Apex Predator array COASTSPAN (St. John nearshore). The integrated database has over 7.5 million hits. Data is shared only with consent of partners and full acknowledgements. Thus, the summary of integrated data here uses data from NOAA and UVI arrays under a cooperative agreement.The benefits of combining and sharing data have included increasing the total area of detection resulting in an understanding of broader scale connectivity than would have been possible with a single array. Partnering has also been cost-effectiveness through sharing of field work, staff time and equipment and exchanges of knowledge and experience across the network. Use of multiple arrays has also helped in optimizing the design of arrays when additional receivers are deployed. The combined arrays have made the USVI network one of the most extensive acoustic arrays in the world with a total of 150+ receivers available, although not necessarily all deployed at all times. Currently, two UVI graduate student projects are using acoustic array data.
    Keywords: Ecology ; Fisheries ; Management ; Oceanography
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    NOAA/National Centers for Coastal Ocean Science | Silver Spring, MD
    In:  http://aquaticcommons.org/id/eprint/14843 | 403 | 2014-03-04 22:11:11 | 14843 | United States National Ocean Service
    Publication Date: 2021-06-26
    Description: The United States Coral Reef Task Force (USCRTF) was established in 1998 by Presidential Executive Order 13089 to lead U.S. efforts to preserve and protect coral reef ecosystems. Current, accurate, and consistent maps greatly enhance efforts to preserve and manage coral reef ecosystems. With comprehensive maps and habitat assessments, coral reef managers can be more effective in designing and implementing a variety of conservation measures, including:• Long-term monitoring programs with accurate baselines from which to track changes;• Place-based conservation measures such as marine protected areas (MPAs); and• Targeted research to better understand the oceanographic and ecological processes affecting coral reef ecosystem health.The National Oceanic and Atmospheric Administration’s (NOAA) National Ocean Service (NOS) is tasked with leading the coral ecosystem mapping element of the U.S. Coral Reef Task Force (CRTF) under the authority of the Presidential Executive Order 13089 to map and manage the coral reefs of the United States.
    Keywords: Conservation ; Environment ; Fisheries ; Management
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    Type: monograph
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    In:  http://aquaticcommons.org/id/eprint/14858 | 403 | 2014-03-07 19:40:13 | 14858 | United States National Ocean Service
    Publication Date: 2021-06-26
    Description: Marine microalgae support world fisheries production and influence climate through various mechanisms. They are also responsible for harmful blooms that adversely impact coastal ecosystems and economies. Optimal growth and survival of many bloom-forming microalgae, including climatically important dinoflagellates and coccolithophores, requires the close association of specific bacterial species, but the reasons for these associations are unknown. Here, we report that several clades of Marinobacter ubiquitously found in close association with dinoflagellates and coccolithophores produce an unusual lower-affinity dicitrate siderophore, vibrioferrin (VF). Fe-VF chelates undergo photolysis at rates that are 10–20 times higher than siderophores produced by free-living marine bacteria, and unlike the latter, the VF photoproduct has no measurable affinity for iron. While both an algal-associated bacterium and a representative dinoflagellate partner, Scrippsiella trochoidea, used iron from Fe-VF chelates in the dark, in situ photolysis of the chelates in the presence of attenuated sunlight increased bacterial iron uptake by 70% and algal uptake by 〉20-fold. These results suggest that the bacteria promote algal assimilation of iron by facilitating photochemical redox cycling of this critical nutrient. Also, binary culture experiments and genomic evidence suggest that the algal cells release organic molecules that are used by the bacteria for growth. Such mutualistic sharing of iron and fixed carbon has important implications toward our understanding of the close beneficial interactions between marine bacteria and phytoplankton, and the effect of these interactions on algal blooms and climate.
    Keywords: Chemistry ; Oceanography
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    NOAA/National Centers for Coastal Ocean Science | Charleston, SC
    In:  http://aquaticcommons.org/id/eprint/14867 | 403 | 2014-03-06 20:25:00 | 14867 | United States National Ocean Service
    Publication Date: 2021-06-27
    Description: In May 2006, the NOAA National Ocean Service (NOS), in conjunction with the EPA National Health and Environmental Effects Laboratory (NHEERL), conducted an assessment of the status of ecological condition of soft-bottom habitat and overlying waters throughout the mid-Atlantic Bight (MAB) portion of the eastern U.S. continental shelf. The study area encompassed the region from Cape Cod, MA and Nantucket Shoals in the northeast to Cape Hatteras in the south, and was defined using a one nautical mile buffer of the shoreline extended seaward to the shelf break (~100-m depth contour). A total of 50 stations were targeted for sampling using standard methods and indicators applied in prior NOAA coastal studies and EPA’s Environmental Monitoring and Assessment Program (EMAP) and National Coastal Assessment (NCA). A key feature adopted from these studies was the incorporation of a random probabilistic sampling design. Such a design provides a basis for making unbiased statistical estimates of the spatial extent of ecological condition relative to various measured indicators and corresponding thresholds of concern. Indicators included multiple measures of water quality, sediment quality, and biological condition (benthic fauna). Through coordination with the NOAA Fisheries Service/Northeast Fisheries Science Center (NFS/NEFSC), samples of summer flounder (Paralichthys dentatus) also were obtained from 30 winter 2007 bottom-trawl survey stations in overlapping portions of the study area and used for analysis of chemical-contaminant body burdens.
    Description: EPA 600/R-09/159
    Keywords: Ecology ; Oceanography
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    NOAA/National Centers for Coastal Ocean Science | Silver Spring, MD
    In:  charles.menza@noaa.gov | http://aquaticcommons.org/id/eprint/14873 | 403 | 2014-03-06 20:46:57 | 14873 | United States National Ocean Service
    Publication Date: 2021-06-27
    Description: Nonindigenous species (NIS) are a major threat to marine ecosystems, with possible dramatic effects on biodiversity, biological productivity, habitat structure and fisheries. The Papahānaumokuākea Marine National Monument (PMNM) has taken active steps to mitigate the threats of NIS in Northwestern Hawaiian Islands (NWHI). Of particular concern are the 13 NIS already detected in NWHI and two invasive species found among the main Hawaiian Islands, snowflake coral (Carijoa riseii) and a red alga (Hypnea musciformis).Much of the information regarding NIS in NWHI has been collected or informed by surveys using conventional SCUBA or fishing gear. These technologies have significant drawbacks. SCUBA is generally constrained to depths shallower than 40 m and several NIS of concern have been detected well below this limit (e.g., L. kasmira – 256 m) and fishing gear is highly selective. Consequently, not all habitats or species can be properly represented.Effective management of NIS requires knowledge of their spatial distribution and abundance over their entire range. Surveys which provide this requisite information can be expensive, especially in the marine environment and even more so in deepwater. Technologies which minimize costs, increase the probability of detection and are capable of satisfying multiple objectives simultaneously are desired.This report examines survey technologies, with a focus on towed camera systems (TCSs), and modeling techniques which can increase NIS detection and sampling efficiency in deepwater habitats of NWHI; thus filling a critical data gap in present datasets. A pilot study conducted in 2008 at French Frigate Shoals and Brooks Banks was used to investigate the application of TCSs for surveying NIS in habitats deeper than 40 m. Cost and data quality were assessed. Over 100 hours of video was collected, in which 124 sightings of NIS were made among benthic habitats from 20 to 250 m. Most sightings were of a single cosmopolitan species, Lutjanus kasmira, but Cephalopholis argus, and Lutjanus fulvus, were also detected.The data expand the spatial distributions of observed NIS into deepwater habitats, identify algal plain as an important habitat and complement existing data collected using SCUBA and fishing gear. The technology’s principal drawback was its inability to identify organisms of particular concern, such as Carijoa riseii and Hypnea musciformis due to inadequate camera resolution and inability to thoroughly inspect sites. To solve this issue we recommend incorporating high-resolution cameras into TCSs, or using alternative technologies, such as technical SCUBA diving or remotely operated vehicles, in place of TCSs. We compared several different survey technologies by cost and their ability to detect NIS and these results are summarized in Table 3.
    Keywords: Ecology ; Management ; Oceanography
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    NOAA/National Centers for Coastal Ocean Science | Silver Spring, MD
    In:  doug.pirhalla@noaa.gov | http://aquaticcommons.org/id/eprint/14874 | 403 | 2014-03-06 20:51:23 | 14874 | United States National Ocean Service
    Publication Date: 2021-06-27
    Description: This report presents the results of a two-year investigation and summary of oceanographic satellite data obtained from multiple operational data providers and sources, spanning years of operational data collection. Long-term summaries of Sea Surface Temperature (SST) and SST fronts, Sea Surface Height Anomalies (SSHA), surface currents, ocean color chlorophyll and turbidity, and winds are provided.Merged satellite oceanographic data revealed information on: (1) seasonal cycles and timing of transition periods; (2) linkages between seasonal effects (warming and cooling), upwelling processes and transport; and (3) nutrient/sediment sources, sinks, and physical limiting factors controlling surface response for Olympic Coast marine environments. These data and information can be used for building relevant hind cast models, ecological forecasts, and regional environmental indices (e.g. upwelling, climate, “hot spot”) on biological distribution and/or response in the PNW.
    Keywords: Atmospheric Sciences ; Ecology ; Management ; Oceanography
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    In:  http://aquaticcommons.org/id/eprint/15051 | 403 | 2014-05-27 14:23:42 | 15051 | United States National Marine Fisheries Service
    Publication Date: 2021-07-01
    Description: A major cause of the steep declines of American oyster (Crassostrea virginica) fisheries is the loss of oyster habitat through the use of dredges that have mined the reef substrata during a century of intense harvest. Experiments comparing the efficiency and habitat impacts of three alternative gears for harvesting oysters revealed differences among gear types that might be used to help improve the sustainability of commercial oyster fisheries. Hand harvesting by divers produced 25−32% more oysters per unit of time of fishing than traditional dredging and tonging, although the dive operation required two fishermen, rather than one. Per capita returns for dive operations may nonetheless be competitive with returns for other gears even in the short term if one person culling on deck can serve two or three divers. Dredging reduced the height of reef habitat by 34%, significantly more than the 23% reduction caused by tonging, both of which were greater than the 6% reduction induced by diver hand-harvesting. Thus, conservation of the essential habitat and sustainability of the subtidal oyster fishery can be enhanced by switching to diver hand-harvesting. Management schemes must intervene to drive the change in harvest methods because fishermen will face relatively high costs in making the switch and will not necessarily realize the long-term ecological benefits.
    Keywords: Conservation ; Fisheries ; Management
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    NOAA National Marine Fisheries Service, Southeast Fisheries Science Center | Pascagoula, MS
    In:  http://aquaticcommons.org/id/eprint/15062 | 9717 | 2014-05-21 21:19:38 | 15062 | United States National Marine Fisheries Service
    Publication Date: 2021-07-02
    Description: The Gulf of Mexico (GMx) is a subtropical marginal sea of the western North Atlantic Ocean with a diverse cetacean community. Ship-based, line-transect abundance surveys were conducted in oceanic waters (〉200 m deep) of the northern GMx within U.S. waters (380,432 square km) during summer 2003 and spring 2004. Data from these surveys were pooled and minimum abundance estimates were based on 10,933 km of effort and 433 sightings of at least 17 species.The most commonly sighted species (number of groups) were pantropical spotted dolphin, Stenella attenuata (115); sperm whale, Physeter macrocephalus (85); dwarf/pygmy sperm whale, Kogia sima/breviceps (27); Risso’s dolphin, Grampus griseus (26); and bottlenose dolphin, Tursiops truncatus (26). The most abundant species (number of individuals; coefficient of variation) were S. attenuata (34,067; 0.18); Clymene dolphin, S. clymene (6,575; 0.36); T. truncatus (3,708; 0.42); and striped dolphin, S. coeruleoalba (3,325; 0.48). The only largewhales sighted were P. macrocephalus (1,665; 0.20) and Bryde’s whale, Balaenoptera edeni (15; 1.98). Abundances for other species or genera ranged from 57 to 2,283 animals. Cetaceanswere sighted throughout the oceanic northern GMx, and whereas many species were widely distributed, some had more regional distributions. Compared to abundance estimates for this area based on 1996-2001 surveys, the estimate for S. attenuata was significantly smaller (P 〈0.05) and that for the spinner dolphin, S. longirostris, appeared much smaller. Also, P. macrocephalus estimates were based on less negatively biased estimates of group-size using 90-minute counts during 2003 and 2004.
    Keywords: Biology ; Environment ; Oceanography
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    In:  http://aquaticcommons.org/id/eprint/15553 | 8 | 2014-10-27 22:04:26 | 15553
    Publication Date: 2021-07-08
    Description: The 1992 PACLIM meeting featured the Long-Term Ecological Research (LTER) program, sponsored by the National Science Foundation. Ranging from hot to cold and wet to dry climatic regimes, these 18 sites are attempting to understand the web of relationships in different locations as communities evolve over time scales of years to decades to centuries. During this time they are subject to external forcings, including those that vary smoothly and somewhat predictably, like the seasons, upon which are superimposed random "shocks" of various magnitudes.
    Keywords: Atmospheric Sciences ; Ecology ; Oceanography ; PACLIM
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    In:  http://aquaticcommons.org/id/eprint/15561 | 8 | 2014-11-06 00:59:34 | 15561
    Publication Date: 2021-07-08
    Description: The extreme phases of the Southern Oscillation (SO) have been linked to fairly persistent classes of circulation anomalies over the North Pacific and parts of North America. It has been more difficult to uncover correspondingly consistent patterns of surface temperature and precipitation over much of the continent. The few regions that appear to have consistent SO-related patterns of temperature and precipitation anomalies are identified and discussed. Also discussed are regions that appear to have strong SO-related surface anomalies whose sign varies from episode to episode.
    Keywords: Atmospheric Sciences ; Oceanography ; PACLIM
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    Publication Date: 2021-07-08
    Description: Radiolarian number and/or flux rates extracted from Holocene and fossil sediments are used to help detect the presence of, type of (weak or strong), and exact location of the depocenter under an El Niño. These data, along with known provenances of certain radiolarians, support an earlier model that suggests a weak El Niño is a northern and coupled expression of a more southerly strong component dominated by eastern tropical Pacific water underlain by California current and gyre water.
    Keywords: Earth Sciences ; Oceanography ; PACLIM
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    Format: 87-90
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    Interagency Ecological Studies Program for the Sacramento-San Joaquin Estuary
    In:  http://aquaticcommons.org/id/eprint/15581 | 8 | 2014-11-10 20:56:15 | 15581
    Publication Date: 2021-07-08
    Description: Technical Report 26 of the Interagency Ecological Studies Program for the Sacramento-San Joaquin Estuary
    Keywords: Atmospheric Sciences ; Earth Sciences ; Ecology ; Limnology ; Oceanography ; PACLIM
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    In:  http://aquaticcommons.org/id/eprint/15614 | 8 | 2014-11-10 22:48:38 | 15614
    Publication Date: 2021-07-08
    Description: The National Oceanic and Atmospheric Administration Center for Ocean Analysis and Prediction (COAP) in Monterey, California, has assembled information to suggest how NOAA's facilities for observing the ocean and atmosphere might be applied to studies of paleoclimate. This effort resulted, indirectly, in several projects that combine direct observations of the ocean/atmosphere system with studies of past climate of the Pacific region. This article considers concepts that link the two kinds of investigations. It defines the thesis that direct observation of systems that generate paleoclimatic information is the nexus upon which understanding of climatic variability begins and upon which prediction of climate and global change depends.
    Keywords: Atmospheric Sciences ; Earth Sciences ; Oceanography ; PACLIM
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    Format: 137-145
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    In:  http://aquaticcommons.org/id/eprint/15617 | 8 | 2014-11-10 23:13:07 | 15617
    Publication Date: 2021-07-09
    Description: A 1844-1987 time-series of carbon stable isotope ratios from dated sedimentary total organic carbon from the center of the Santa Barbara basin is compared with historical climate and oceanographic records. Carbon derived from carbon-13-depleted phytoplankton and carbon-13-enriched kelp appear responsible for a large part of the isotopic variance in sedimentary total organic carbon. El Niño/Southern Oscillation events are recorded by the isotopic response of marine organic carbon in sediments.
    Keywords: Chemistry ; Earth Sciences ; Oceanography ; PACLIM
    Repository Name: AquaDocs
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    Format: application/pdf
    Format: 157-163
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