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Winter Zooplankton in a Small Arctic Lake: Abundance and Vertical Distribution

Murmansk Marine Biological Institute (MMBI), 183010 Murmansk, Russia
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Academic Editor: Artem Y. Sinev
Water 2021, 13(7), 912; https://doi.org/10.3390/w13070912
Received: 24 February 2021 / Revised: 22 March 2021 / Accepted: 24 March 2021 / Published: 26 March 2021
(This article belongs to the Special Issue Zooplankton Diversity in Water Bodies)
Zooplankton assemblages are of great importance in aquatic food webs because they link lower (microplankton) and higher trophic levels (top predators). Small water bodies in the Arctic regions of Russia are less studied in winter because of severe ice conditions. For this reason, we analyzed the winter zooplankton community in Lake Kulonga (western coast of Kola Bay, Barents Sea). A total of 9 taxa were found in the samples. The total abundance varied from 200 to 1320 ind. m−3, averaging 705 ind. m−3. The total zooplankton biomass was 1.8–72.8 mg of wet mass m−3 with an average of 30 mg m−3. These parameters were lower than in other Russian Arctic and sub-arctic lakes in summer. Old copepodites of Cyclops spp. dominated the zooplankton community at deep-water stations in terms of the total abundance consisting of 24–33%. The copepod Macrocyclops albidus prevailed in terms of the total zooplankton biomass comprising 30–33% at deep-water stations while Cyclops scutifer and copepodites Cyclops spp. had the highest biomass at shallow water stations. Vertical distribution demonstrated different patterns at neighboring stations, probably as a result of differences in the density of fish predators. View Full-Text
Keywords: freshwater zooplankton; copepods; vertical distribution; Lake Kulonga; Arctic freshwater zooplankton; copepods; vertical distribution; Lake Kulonga; Arctic
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MDPI and ACS Style

Dvoretsky, V.G.; Dvoretsky, A.G. Winter Zooplankton in a Small Arctic Lake: Abundance and Vertical Distribution. Water 2021, 13, 912. https://doi.org/10.3390/w13070912

AMA Style

Dvoretsky VG, Dvoretsky AG. Winter Zooplankton in a Small Arctic Lake: Abundance and Vertical Distribution. Water. 2021; 13(7):912. https://doi.org/10.3390/w13070912

Chicago/Turabian Style

Dvoretsky, Vladimir G.; Dvoretsky, Alexander G. 2021. "Winter Zooplankton in a Small Arctic Lake: Abundance and Vertical Distribution" Water 13, no. 7: 912. https://doi.org/10.3390/w13070912

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