Effect of temperature fluctuations on embryonic development of the beluga, Huso huso, and sevryuga, Acipenser stellatus

Igumnova, L.V.

Voprosy Ichtiologii 25(3): 478-482


ISSN/ISBN: 0042-8752
Accession: 005274838

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The effect of sudden temperature fluctuations was studied in the spawning range and below its lower limit, as was the effect of subliminal temperatures on the structure of embryonic beluga and stellate sturgeons during various stages of embryogenesis and on their subsequent development. Different degrees of sensitivity were observed in embryos at early and late stages of embryogenesis to the effect of temperature drops within the natural spawning range as well as below its lower limits.