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Hydrobiological Journal
SJR: 0.227 SNIP: 0.901 CiteScore™: 0.5

ISSN Print: 0018-8166
ISSN Online: 1943-5991

Hydrobiological Journal

DOI: 10.1615/HydrobJ.v47.i2.60
pages 55-62

Hormonal Mechanism of Energy Supply of the Fish Adaptation to the Inorganic Nitrogen Impact

V. D. Romanenko
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
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


It was established, that cortisol is an important component in development of mechanisms of fish adaptation to the impact of high concentration of allochthonous nitrogen. Seasonal changes of cortisol content in the blood plasma were noted. At high cortisol content in blood fish metabolism became more intensive and needed significant expenses of the energy resources of the organism. Over period of active detoxication and excretion of excess ammonia from the organism, cortisol content in fish increased 1.5-8.9 times as compared with control.

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