Summer bacterio- and zooplankton in coastal waters of Svalbard |
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| Authors: | V G Dvoretsky M P Venger P R Makarevich D V Moiseev |
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| Institution: | 1.Murmansk Marine Biological Institute, Kola Science Center,Russian Academy of Sciences,Murmansk,Russia |
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| Abstract: | The distribution of bacterio- and zooplankton was studied in West Spitsbergen (Svalbard) coastal waters in August 2009. The
bacterial abundance and biomass varied from 110 to 3360 × 103 cells/ml and from 0.66 to 44.93 mg C/m3, respectively. These values were the highest in the surface water layers and decreased with depth. The greatest abundance
of bacteria (5099 individuals/m3) was found in the freshened and warm water layer in Isfjorden. The highest biomass of zooplankton
(182.41 mg C/m3) was registered in the zone of interaction of coastal and transformed Atlantic waters in the archipelago inner shelf. The
spatial variations of abundance and biomass of the planktonic communities were related to the thermohaline characteristics
of the water masses and, probably, to microalgal blooms. |
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