Open AccessTHE STATE OF THE ICHTHYOFAUNA AND FACTORS AFFECTING FISH POPULATIONS OF THE LAKES OF THE KORGALZHYN STATE NATURE RESERVE
Author(s) -
Vladimir Nickolaevich Krainyuk,
Azis Vasilyevich Shutkarayev,
G.K. Barinova,
A.S. Assylbekova
Publication year - 2021
Publication title -
chronos: estestvennye i tehničeskie nauki
Language(s) - English
Resource type - Journals
ISSN - 2712-9691
DOI - 10.52013/2712-9691-37-4-2
Subject(s) - fishing , fishery , pike , geography , fish <actinopterygii> , perch , national park , ecology , biology , archaeology
The results of the cadastral survey of 4 reservoirs located on the territory of the Korgalzhyn State Nature Reserve are presented. The assessment of the main biological characteristics of living fish is given: size, weight composition, linear and weight growth rate. In total, 15 species of fish from 5 families were found in the surveyed reservoirs in 2016-2020. The carp family is most widely represented in the reservoirs of the national park, 9 species are noted, the loach, pike and stickleback families are represented by 1 species, perch — 3 species. According to the results of research fishing, it was found that in the lakes of the Korgalzhynsky SNR, the organization of reclamation fishing in the form of total trapping and research fishing is necessary in 2021.