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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.v50.i1.50
pages 61-71

Impact of Temperature Fluctuations on Embryonic-larval Development of Esox lucius L. (Salmoniformes, Esocidae)

V. A. Kuznetsov
Mordovian State University, Saransk, Russian Federation
S. V. Lukiyanov
University of Mordovia Saransk, Russian Federation

ABSTRACT

Fluctuations of temperature within the limits of ecological norm were shown to affect positively embryonic and larval development of Esox lucius L. In optimal temperature regimes growth and development were accelerated, survival rate of embryos and larvae increased (especially during the critical periods of development), growth became more synchronous. Taking into account high mortality of fishes and other poikilotherms in early ontogenesis, optimization of their cultivation in variable temperature regimes can be one of the main ways to increase efficiency of artificial reproduction.


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