Publication de 6 numéros par an
ISSN Imprimer: 0018-8166
ISSN En ligne: 1943-5991
Indexed in
Changes in Morphophysiological Characteristics of Carp under the Influence of Heightened Concentration of Mineral Nitrogen in Water
RÉSUMÉ
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.
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Kurapova Tatyana Mikhailovna, Khrustalev Evgeny Ivanovich , Chaban Ksenia Andreevna, Morphophysiological features of producers of carp cultivated in the pond of the UOKH KSTU, Rybovodstvo i rybnoe hozjajstvo (Fish Breeding and Fisheries), 3, 2022. Crossref