Specific features of accumulation of Cu,Ni, Zn,Cd, and Hg in two whitefish <Emphasis Type="Italic">Coregonus lavaretus</Emphasis> (L.) morphs inhabiting the Inari-Pasvik lacustrine-riverine system |
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Authors: | N A Kashulin P M Terentyev P -A Amundsen V A Dauvalter S S Sandimirov A N Kashulin |
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Institution: | 1.Institute of Industrial Ecology Problems of the North, Kola Science Center,Russian Academy of Sciences,Akademgorodok, Apatity,Russia;2.Norwegian College of Fishery,Science University of Troms?,Troms?,Norway |
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Abstract: | The spatial regularities of the accumulation of heavy metals in two ecological morphs of whitefish of the Pasvik River (northern
Fennoscandia) under long-term pollution have been investigated. It was revealed that the accumulation of priority pollutants
(Ni and Cu) in fish declines the further you go from the source of pollution. The concentration of Hg in the tissues of fish
from the Pasvik River was determined for the first time. It was found that metal accumulation depends on the ecological morphs
of the fish, the natural conditions of the waterbodies, and the intensity of pollution. The specific features of heavy-metal
distribution in the “bottom sediment-fish organism” system were determined. These may indicate the heterogeneity of the pollution
processes of the Pasvik system of waterbodies. |
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