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International Journal of Environmental Research
University of Tehran
ISSN: 1735-6865 EISSN: 1735-6865
Vol. 2, No. 2, 2008, pp. 111-124
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Bioline Code: er08015
Full paper language: English
Document type: Research Article
Document available free of charge
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International Journal of Environmental Research, Vol. 2, No. 2, 2008, pp. 111-124
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The status of whitefish population from Chuna Lake in the Lapland Biosphere Reserve Russia
Kashulin, N. A.; Terentiev, P. M. & Koroleva, I. M.
Abstract
The current state of whitefish population and their organisms have been investigated
in subarctic Lake Chuna exposed to long-term air pollution from copper-nickel industry. Both annual
and long-term heavy metals and acid oxides loads on the lake have been determined. A qualitative
assessment has been made for water and bottom sediments. The investigation results have been
compared with those of the archived data (the 1950s -1960s studies) to reveal a number of changes.
The lifetime of whitefish has shortened, with early maturity and spawning. Pathological changes of
whitefish inner organs occur more frequently. Assessment was made for the Cu and Ni concentrations
in whitefish organs and tissues, the seasonal dynamics and peculiarities of metal accumulation in
two different species. The revealed changes of the biological constituent of the lake ecosystem
alongside with hydro-chemical indices of air-borne load is suggestive of adverse impact of longterm
air-borne pollution on the Lake Chuna ecosystem.
Keywords
Whitefish, Population structure, Heavy metals, Air pollution, Lake, Subarctic, Chuna
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© Copyright 2008 - Graduate Faculty of Environment University of Tehran Alternative site location: http://ijer.ut.ac.ir/
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