Hydrobiological Journal

ISSN for PRINT: 0018-8166

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2005, Volume41

Issue 4

118 pages

DOI: 10.1615/HydrobJ.v41.i4

Issue price - $369.00

O. L. Zarubin
Institute of Nuclear Research, National Academy of Sciences of Ukraine, Kiev, Ukraine

In 1986-1988 the content of ¹³⁷Cs in the fishes kept in breeding cages in the cooling pond of the Chernobyl NPS in the absence of artificial food was compared with that in free-living fishes characterized by different types of nutrition. The body mass of polybenthophagous fishes kept in cages and the content of ¹³⁷Cs in them were several times lower than those registered in free-living fishes. It has been found that the content of ¹³⁷Cs in Ictalurus punctatus depended inversely on its dimensions. As a result of the absence of artificial food, by summer 1988 the death rate of I. punctatus and Cyprinus carpio belonging to polybenthophagous species of fishes accounted for almost 100%
The content of ¹³⁷Cs and biological characteristics in free-living planktophagous species of fishes (Hypophthalmichthys molitrix and Aristichthys nobilis) were closely similar to those kept in cages, which was conditioned by the same food availability.

DOI: 10.1615/HydrobJ.v41.i4.70 Download article, 54-66 pages

Article price - $35.00

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