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Hydrobiological Journal
SJR: 0.227 SNIP: 0.575 CiteScore™: 0.24

ISSN Imprimir: 0018-8166
ISSN En Línea: 1943-5991

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Hydrobiological Journal

DOI: 10.1615/HydrobJ.v43.i2.80
pages 72-80

Changes in Morphophysiological Characteristics of Carp under the Influence of Heightened Concentration of Mineral Nitrogen in Water

A. S. Potrokhov
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev
O. G. Zin'kovskiy
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
T. Ya. Kiriziy
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
Yu. M. Khudiyash
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine

SINOPSIS

The changes in the linear-weight growth rate, the indices of spleen, liver and gonad and the condition factor in carps under action of high concentration of allochthonous nitrogen in ponds were analyzed during two years. The most clear negative manifestations of the influence of mineral nitrogen on fish were observed by the autumn and in winter. In spite of high growth rates of fishes in contaminated ponds for vegetation period, they stored up diminished amounts of reserve matters, and it resulted in their reduced by 19.0−41.8% survival in winter as compared to the control. The reproduction system of carp turned out to be not subjected to the influence of allochthonous nitrogen.