Relict Crustaceans under Conditions of Long-Term Pollution of Subarctic Lake Imandra: Results of Observations in 1930–1998 |
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Authors: | Il'yashuk B P |
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Institution: | (1) Institute of Problems of the Industrial Ecology of the North, Kola Research Center, Russian Academy of Sciences, ul. Fersmana 14, Apatity, Murmansk oblast, 184200, Russia |
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Abstract: | Changes in the role of relict crustaceans in the zoobenthic communities of large subarctic Lake Imandra are analyzed over the long period of economic development in its drainage area. To date, Mysis relicta as a species highly sensitive to anthropogenic pollution has apparently disappeared from the lake fauna. The currently recorded maximum values of Pontoporeia affinis abundance and biomass are more than 20 times as great as those between 1968 and 1986. As in other lakes with mass development of P. affinis, the populations of this crustacean inhibit chironomid larvae in the communities of Lake Imandra. |
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Keywords: | glacial relicts Crustacea Subarctic chironomids Russia |
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