DATA ON FECUNDITY AND REPRODUCTION OF THE PERCH PERCA FLUVIATILIS L., 1758 (PERCIDAE) IN K. SATPAEV'S CHANNEL RESERVOIRS
Journal Title: Вестник Астраханского государственного технического университета. Серия: Рыбное хозяйство - Year 2013, Vol 0, Issue 3
Abstract
The sustainable reproduction of perch plays an important role in high number maintenance in K. Satpaev's channel reservoirs. It is provided with high fecundity, early maturing and high rate of females in populations. For individuals from channel waters positive correlation of some biological indicators (body's length and weight) to fecundity and diameter of eggs is fixed. The absolute fecundity increases up to seven-year age, and further becomes stabilized. The relative fecundity also increases up to seven-year age, but further it decreases. Thus, the perch has sustainable reproduction stage. It allows it to defend an occupied ecological niche successfully.
Authors and Affiliations
Kraynyuk Nickolaevich, Assylbekova Zhangirovna
Keywords
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