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Title: Biological processes in the water column of the South Atlantic Bight: Zooplankton responses

The goal of the Fall Removal Experiment 1987 was to determine the processes affecting the dependent and fate of low salinity coastal water and of biological material therein during fall when winds are mainly south-to westward. Five zooplankton taxa, Acartia tonsa, (A. tonsa) Paracalanus species (sp), Temora turbinata (T. turbinata), Oncaea sp, and Sagitta enflata were examined. Data on the distribution of all five taxa were presented, and distribution over time was also studied. The abundance of A. tonsa decreased tenfold over the 13 day sampling period, Paracalanus varied twofold and T. Turbinata showed little variability. The A. tonsa decrease was postulated to result from food abundance or predation, although the possible role of size distribution, water displacement and chlorophyll distribution will be examined in the future. A possible role of turbulence in zooplankton abundance is being examined. 8 refs., 5 figs.
Publication Date:
OSTI Identifier:
6279866
Report Number(s):
DOE/ER/60354-5
ON: DE91006389; CNN: OCE85-00917; OCE 87-23174
DOE Contract Number:
FG09-85ER60354
Resource Type:
Technical Report
Research Org:
Skidaway Inst. of Oceanography, Savannah, GA (USA)
Sponsoring Org:
DOE/ER; NSF
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; SOUTH ATLANTIC BIGHT; OCEANOGRAPHY; ZOOPLANKTON; SPATIAL DISTRIBUTION; COASTAL WATERS; COPEPODS; FEDERAL REGION IV; PROGRESS REPORT; SALINITY; SAMPLING; SURFACE WATERS; TEMPERATURE DEPENDENCE; TEMPERATURE SURVEYS; TIME DEPENDENCE; TIME RESOLUTION; TURBULENCE; UPWELLING; WIND; ANIMALS; AQUATIC ORGANISMS; ARTHROPODS; ATLANTIC OCEAN; CRUSTACEANS; DISTRIBUTION; DOCUMENT TYPES; GEOPHYSICAL SURVEYS; INVERTEBRATES; NORTH AMERICA; PLANKTON; RESOLUTION; SEAS; SURVEYS; TIMING PROPERTIES; USA 540310* -- Environment, Aquatic-- Basic Studies-- (1990-)