Seasonal changes in zooplankton composition in the Barents Sea, with special attention to Calanus spp. (Copepoda) |
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Authors: | Hassel Arne |
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Institution: | Institute of Marine Research, Directorate of Fisheries PO Box 1870, 5011 Bergen-Nordnes, Norway |
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Abstract: | The Barents Sea is an important area with respect to fisheriesresources (i.e. capelin and cod). In May, June and August 1981zooplankton biomass was measured along a transect at 30°E,from the ice border southwards. A maximum was recorded in Atlanticwater by the end of June (>100 g wet weight m2 InAugust the biomass values were relatively low south of the Polarfront and increased northwards into Arctic water (50g m2 The species composition was influenced by the distributionof cold Arctic water and warmer Atlantic water. The zooplanktonwas dominated by the copepods Calanus finmarchicus and C. glacialis;the former is regarded as an Atlantic species and C. glacialisas an Arctic species. |
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