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The paper shows the efficiency of natural reproduction of semi-anadromous fish, including the main commercial species such as roach and bream, and river fish species depending on the volume, hydrological… Click to show full abstract
The paper shows the efficiency of natural reproduction of semi-anadromous fish, including the main commercial species such as roach and bream, and river fish species depending on the volume, hydrological regime and duration of spring flood, and the temperature regime of the Volga river during fish spawning. A comparative assessment of the conditions and results of roach and bream reproduction in different water years and periods of Volga runoff regulation is given. The dependence between feeding duration of semi-anadromous and river fry and the efficiency of reproduction, the number of viable younglings and their biological indicators in different water years is shown.
Journal Title: Fisheries
Year Published: 2020
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