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

ISSN Imprimir: 0018-8166
ISSN On-line: 1943-5991

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Hydrobiological Journal

DOI: 10.1615/HydrobJ.v37.i1.30
13 pages

Influence of Free Carbon Dioxide on the Viability of Phytophilous and Pelagophilous Fishes in Early Ontogeny

V. P. Bil'ko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
S. V. Kruzhilina
Institute of Fishery, Ukrainian Academy of Agrarian Sciences, Kyiv, Ukraine

RESUMO

It is shown experimentally that viability of fish embryos depends on the CO2 concentrations in aquatic medium at the period of fecundation and swelling of eggs. CO2 concentrations of 8-9 mg/L stimulated vitality of larvae of phytophilous fishes. Proceeding from the results obtained, the authors recommend the standards of CO2 concentrations at various dimensional stages of fish (in particular, white amur, white bullhead, bream) breeding in ponds.


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