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  • Articles  (9)
  • Open Access-Papers  (9)
  • Louisiana Universities Marine Consortium  (9)
  • 2020-2023  (9)
  • 1965-1969
  • 1
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    LaSER Oceanography: Data Report Number 4, R/V Pelican Cruise, September 20-27, 1989, CTD and Hydrographic Data (2022)
    Louisiana Universities Marine Consortium | Chauvin, LA
    Details
    Publication Date: 2022-03-06
    Description: This five year multi-institutional and multi-investigator program is entitled "Oceanographic Processes on Continental Shelves Influenced by Large Rivers." Funding began in January, 1987. The scientific goals of this program are a) investigations on a large spatial scale, from the Mississippi River delta to some far field (down-plume) location, to examine biological responses to riverine inputs of dissolved nutrients, suspended sediments, and fresh water; b) investigations on small spatial scales, both horizontally and vertically, in a cross plume direction to examine the role of oceanographic fronts, convergences, and discontinuities in biological production; and c) investigations on small temporal scales, particularly to examine the biological responses to the passage of winter storms. This report summarizes the CTD and hydrographic data from the fourth LaSER oceanography cruise, for the Mississippi River plume region west of the delta.
    Description: Published
    Description: Non Refereed
    Keywords: ASFA_2015::O::Oceanography ; ASFA_2015::C::CTD measurements
    Repository Name: AquaDocs
    Type: Report
    Format: 99pp.
    Location Call Number Expected Availability
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    PAPER (OA)
  • 2
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    Nutrient Enhanced Coastal Ocean Productivity (NECOP): Data Report: CTD and Hydrographic Data, R/V Pelican Cruise, May 5-17, 1992. (2022)
    Louisiana Universities Marine Consortium | Chauvin, LA
    Details
    Publication Date: 2022-03-06
    Description: The Nutrient Enhanced Coastal Ocean Productivity (NECOP) Program is a component of NOAA's Coastal Ocean Program. The central hypothesis of this research is: anthropogenic nutrient inputs have enhanced coastal ocean productivity with subsequent impacts on coastal ocean water quality, living resource yields, and the global marine carbon cycle. The initial study area for this program is the Mississippi/Atchafalaya River Outflow and adjacent Louisiana shelf region. The focus of this cruise, P26-92, was on water column processes particularly phytoplankton, bacterial, and zooplankton processes as they relate to particulate flux. To accomplish these objectives we visited the plume region, the hypoxia region and a blue water region well offshore. In each region, the surface water was initially characterized by use of a flow-through mapping system aboard the vessel Pelican, the MIDAS system. In addition an ADCP system was deployed during portions of the cruise. Within the plume and hypoxia regions, work was accomplished while following free floating sediment traps over 48 hour periods. In addition to routine hydrographic sampling (CTD, nutrients, chlorophyll, suspended particulate matter) experimental measurements of phytoplankton production, bacterial production, zooplankton biomass and zooplankton feeding rates were made at appropriate intervals while tracking the sediment traps. This report summarizes the CTD and basic hydrographic measurements made during the cruise.
    Description: Published
    Description: Non Refereed
    Keywords: ASFA_2015::O::Oceanography ; ASFA_2015::C::CTD measurements
    Repository Name: AquaDocs
    Type: Report
    Format: 200
    Location Call Number Expected Availability
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    PAPER (OA)
  • 3
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    LaSER Oceanography: Data Report Number 6, R/V Pelican Cruise, October 23-29, 1990, CTD and Hydrographic Data (2022)
    Louisiana Universities Marine Consortium | Chauvin, LA
    Details
    Publication Date: 2022-03-06
    Description: This five year multi-institutional and multi-investigator program is entitled "Oceanographic Processes on Continental Shelves Influenced by Large Rivers." Funding began in January, 1987. The scientific goals of this program are a) investigations on a large spatial scale, from the Mississippi River delta to some far field (down-plume) location, to examine biological responses to riverine inputs of dissolved nutrients, suspended sediments, and fresh water; b) investigations on small spatial scales, both horizontally and vertically, in a cross plume direction to examine the role of oceanographic fronts, convergences, and discontinuities in biological production; and c) investigations on small temporal scales, particularly to examine the biological responses to the passage of winter storms. This report summarizes the CTD and hydrographic data from the sixth LaSER oceanography cruise, for the Mississippi River plume region west of the delta.
    Description: Published
    Description: Non Refereed
    Keywords: ASFA_2015::O::Oceanography ; ASFA_2015::C::CTD measurements
    Repository Name: AquaDocs
    Type: Report
    Format: 121
    Location Call Number Expected Availability
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    PAPER (OA)
  • 4
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    Nutrient Enhanced Coastal Ocean Productivity (NECOP) Data Report: CTD and Hydrographic Data, R/V Pelican Cruise, September 12-18, 1991 (2022)
    Louisiana Universities Marine Consortium | Chauvin, LA
    Details
    Publication Date: 2022-03-06
    Description: The Nutrient Enhanced Coastal Ocean Productivity (NECOP) Program is a component of NOAA's Coastal Ocean Program. The central hypothesis of this research is: Anthropogenic nutrient inputs have enhanced coastal ocean productivity with subsequent impacts on coastal ocean water quality, living resource yields, and the global marine carbon cycle. The initial study area for this program is the mississippi/Atchafalaya River Outflow and adjacent Louisiana shelf region. NECOP cruises I and II were in July/August 1990 and March 1991. The focus of this cruise, NECOP III, was on water column processes particularly phytoplankton, bacterial, and zooplankton processes as they relate to particulate flux. To accomplish these objectives we visited the plume region, the hypoxia region and a blue water region well offshore. In each region, the surface water was initially characterized by use of a flow-through mapping system aboard the vessel PELICAN, the MIDAS system. In addition an ADCP system was deployed with a different frequency being selected for each region. The high Frequency (1200 khz) transducer was used in the plume region, the mid-frequency (600 khz) transducer in the hypoxia region and the low frequency (300 khz) system in the offshore region. Within the plume and hypoxia regions, work was accomplished while following free floating sediment traps over 36-48 hour periods. In addition to routine hydrographic sampling (CTD, nutrients, chlorophyll, suspended particulate matter) experimental measurements of phytoplankton production, bacterial production, phosphorus uptake and turnover, zooplankton biomass and zooplankton feeding rates were made at appropriate intervals while tracking the sediment traps. This report summarizes the CTD and basic hydrographic measurements made during the cruise.
    Description: Published
    Description: Non Refereed
    Keywords: ASFA_2015::O::Oceanography ; ASFA_2015::C::CTD measurements
    Repository Name: AquaDocs
    Type: Report
    Format: 135
    Location Call Number Expected Availability
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    PAPER (OA)
  • 5
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    DOE Coastal Ocean Program: "Assimilation and Transfer of Carbon in Oligotrophic and Eutrophic Coastal Water Columns" Data Report: CTD and Hydrographic Data, R/V Pelican Cruise no. 92-10, October 19-27, 1992. (2022)
    Louisiana Universities Marine Consortium | Chauvin, LA
    Details
    Publication Date: 2022-03-18
    Description: Water column processes were examined in two environments within the continental margin of the northern Gulf of Mexico. Location I was at the shelf break and location II was at the inner to mid shelf. Each location was first characterized by a brief mapping exercise with the ship's flow-through monitoring system called MIDAS. This system monitors surface water conditions of temperature, salinity, chlorophyll fluorescence and light transmission. Each is plotted as a function of the ship's cruise track, providing a real time image of surface water properties. CTD profiles provided vertical resolution at selected sites. At each location, the information provided by the mapping output and CTD was used to select a location for deployment of a floating sediment trap array. At the slope location, traps were set at 65 m and 90 m. At the inner shelf station, traps were set for 17 m and 25 m. In both cases, water column processes in the vicinity of the drifting trap array were characterized over a 2 day deployment. During each trap deployment, depth profiles of temperature, salinity, chlorophyll and nutrient concentrations were made several times a day. Process measurements included phytoplankton primary production, P I properties and growth rate, bacterial production, water column respiration, microzooplankton grazing (2 methods), and mesozooplankton grazing (2 methods). At each location, additional water column measurements included: DOC profiles; quantification of dissolved carbohydrates; isolation and characterization of dissolved organic matter; phytoplankton pigments; irradiance profiles; and POC/PON. A budget of water column processes will be constructed at each of the two environmentally distinct deployment sites to determine carbon inputs, rates of recycling and fates within the upper water column.
    Description: Published
    Description: Non Refereed
    Keywords: ASFA_2015::O::Oceanography ; ASFA_2015::C::CTD measurements
    Repository Name: AquaDocs
    Type: Report
    Format: 97pp.
    Location Call Number Expected Availability
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  • 6
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    DOE Coastal Ocean Program: Cruise in Support of Proposal Titled "Assimilation and Transfer of Carbon in Oligotrophic and Eutrophic Coastal Water Columns", Data Report: CTD and Hydrographic Data, R/V Pelican Cruise no. PE930504, May 5 - May 13, 1993. (2022)
    Louisiana Universities Marine Consortium | Chauvin, LA
    Details
    Publication Date: 2022-03-18
    Description: Water column processes were examined in two environments within the continental margin of the northern Gulf of Mexico. Location I was at the shelf break/slope and location II was at an inner to mid shelf location. Each location was first characterized by a brief mapping exercise done with the ship's flow-through monitoring system called MIDAS. This system monitors surface water conditions of temperature, salinity, chlorophyll fluorescence and light transmission. Each is plotted as a function of the ship's cruise track, providing a real time image of surface water properties. CTD profiles were used to provide vertical resolution at selected sites during the map. At each location, the information provided by the mapping output and CTD drops was used to select a location for deployment of a floating sediment trap array. Traps were set for 2 depths. At the slope location, traps were set for 65 m and 90 m. At the inner shelf station, traps were set for 17 m and 25 m. At the slope station, water column processes at the trap site was measured over a 3 day duration during which the trap array was tracked by the vessel. At the mid-shelf site, the traps were deployed for two days. During each trap deployment, hydrographic measurements were measured four times a day with the CTD. Depth profiles of chlorophyll and nutrient concentrations were made for each cast. Process measurements included phytoplankton production and P vs. I curves, bacterial production, water column respiration, microzooplankton grazing (2 methods), and mesozooplankton grazing (2 methods). At each location, additional water column measurements included: DOC profiles; quantification of dissolved carbohydrates; and isolation and characterization of dissolved organic matter. A budget of water column processes will be compared with vertical flux measured by sediment traps at each site to determine what fraction of production is recycled within the photic zone and whether recycling efficiency varies between sites.
    Description: Published
    Description: Non Refereed
    Keywords: ASFA_2015::O::Oceanography ; ASFA_2015::C::CTD measurements
    Repository Name: AquaDocs
    Type: Report
    Format: 229pp.
    Location Call Number Expected Availability
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  • 7
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    Zooplankton Community Characterization: Oceanic and Shelf Transect (ZCCOAST) Data Report: CTD and Hydrographic Data, Zooplankton Counts, R/V Pelican Cruise, June 25-27, 1991. (2022)
    Louisiana Universities Marine Consortium | Chauvin, LA
    Details
    Publication Date: 2022-03-18
    Description: The purpose of this cruise was to characterize the zooplankton community across the continental shelf and into the oceanic Gulf of Mexico. Five stations due south of the sea buoy off of Cocodrie (LA) were selected at approximately the 25, 50, 100, 400, and 600 fathom contours. At each station a CTD cast was done to acquire hydrographic data. At the time of each cast, water was also collected for pigment and nutrient analyses. Also, at each station, net tows were done for zooplankton collection.
    Description: Published
    Description: Non Refereed
    Keywords: ASFA_2015::O::Oceanography ; ASFA_2015::C::CTD measurements
    Repository Name: AquaDocs
    Type: Report
    Format: 57pp.
    Location Call Number Expected Availability
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  • 8
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    LaSER Oceanography: Data Report Number 3, R/V Pelican Cruise, April 10-22, 1989, CTD and Hydrographic Data (2022)
    Louisiana Universities Marine Consortium | Chauvin, LA
    Details
    Publication Date: 2022-02-23
    Description: This five year multi-institutional and multi-investigator program is entitled "Oceanographic Processes on Continental Shelves Influenced by Large Rivers." Funding began in January, 1987. The scientific goals of this program are a) investigations on a large spatial scale, from the Mississippi River delta to some far field (down-plume) location, to examine biological responses to riverine inputs of dissolved nutrients, suspended sediments, and fresh water; b) investigations on small spatial scales, both horizontally and vertically, in a cross plume direction to examine the role of oceanographic fronts, convergences, and discontinuities in biological production; and c) investigations on small temporal scales, particularly to examine the biological responses to the passage of winter storms. This report summarizes the CTD and hydrographic data from the third LaSER oceanography cruise, for the Mississippi River plume region west of the delta.
    Description: Published
    Description: Non Refereed
    Keywords: ASFA_2015::O::Oceanography ; ASFA_2015::C::CTD measurements
    Repository Name: AquaDocs
    Type: Report
    Format: 135pp.
    Location Call Number Expected Availability
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    PAPER (OA)
  • 9
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    LaSER Oceanography: Data Report Number 5, R/V Pelican Cruise, April 23-29, 1990, CTD and Hydrographic Data (2022)
    Louisiana Universities Marine Consortium | Chauvin, LA
    Details
    Publication Date: 2022-02-24
    Description: This five year multi-institutional and multi-investigator program is entitled "Oceanographic Processes on Continental Shelves Influenced by Large Rivers." Funding began in January, 1987. The scientific goals of this program are a) investigations on a large spatial scale, from the Mississippi River delta to some far field (downplume) location, to examine biological responses to riverine inputs of dissolved nutrients, suspended sediments, and fresh water; b) investigations on small spatial scales, both horizontally and vertically, in a cross plume direction to examine the role of oceanographic fronts, convergences, and discontinuities in biological production; and c) investigations on small temporal scales, particularly to examine the biological responses to the passage of winter storms. This report summarizes the CTD and hydrographic data from the fifth LaSER oceanography cruise, for the Mississippi River plume region west of the delta.
    Description: Published
    Description: Non Refereed
    Keywords: ASFA_2015::O::Oceanography ; ASFA_2015::C::CTD measurements
    Repository Name: AquaDocs
    Type: Report
    Format: 141pp.
    Location Call Number Expected Availability
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    PAPER (OA)
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