Characterization of the functional state of the Black Sea turbot Scophthalmus maeoticus maeoticus at different periods of the reproductive cycle, based on the research data from 2009–2017

Results of the long-term studies of the morpho-functional state in the turbot Scophthalmus maeoticus maeoticus breeders from the north-eastern part of the Black Sea during the pre-spawn, spawning and post-spawn periods are presented. In the investigated turbot individuals, indices of their liver and gonads, as well as the content of proteins and lipids in these organs and in their blood changed in accordance with endogenous rhythms of maturation and expulsion of reproductive products during spawning. In the running-ripe eggs, concentration of proteins and lipids varied over a wide range. Decreasing indices along with the signs of liver resources depletion have been recorded in large-sized females, spawning at high water temperatures. The description of normal values and identified deviations is presented and proposed to be used as a basis for the assessment of the variability of fish physiological state during its maturation in natural and aquaculture environment.

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Bibliographic Details
Main Authors: Boyko, N.Ye., Ruzhinskaya, L.P.
Other Authors: Belousov, V.N.
Format: Journal Contribution biblioteca
Language:Russian
Published: 2019
Subjects:Functional state, Scophthalmus maeoticus, Black Sea turbot, Animal reproduction, Spawning seasons, Liver, Gonads, Animal morphology, Proteins, Lipids, Animal organs, Sexual maturation, Черноморский калкан, Белки, Жиры, Печень, Гонады, Половозрелость, Репродукция, Функциональное состояние, Нерестовый период,
Online Access:http://hdl.handle.net/1834/16134
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