Exotic Fish Species in the Balkhash Lake Basin (Kazakhstan)

An exotic species, channel catfish Ictalurus punctatus , has been recorded in the ichthyofauna of the Republic of Kazakhstan for the first time. The specimens were caught in the Ili River upstream of the Kapchagai Reservoir in October 2020. Based on repeated findings of Nile tilapia Oreochromis nilo...

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Bibliographic Details
Published in:Inland water biology 2022-02, Vol.15 (1), p.84-87
Main Authors: Mamilov, N. Sh, Konysbaev, T. G., Belyaev, A. I., Vasil’eva, E. D.
Format: Article
Language:English
Subjects:
Biodiversity
Biomedical and Life Sciences
Brief Communications
Catfish
Fish
Freshwater & Marine Ecology
Freshwater fishes
Geoecology/Natural Processes
Ichthyofauna
Introduced species
Juveniles
Lake basins
Lakes
Life Sciences
Marine fishes
Oreochromis niloticus
Ponds
Reproduction (biology)
Rivers
Tilapia
Tributaries
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Summary:An exotic species, channel catfish Ictalurus punctatus , has been recorded in the ichthyofauna of the Republic of Kazakhstan for the first time. The specimens were caught in the Ili River upstream of the Kapchagai Reservoir in October 2020. Based on repeated findings of Nile tilapia Oreochromis niloticus and its hatchlings in the Borokhudzir River (a tributary of the Ili River), it has been concluded that a self-reproducing population of this species has appeared here. The possibility of naturalization of channel catfish in the Balkhash basin, which poses a threat to the remains of the native Ili ichthyofauna, is discussed.
ISSN:1995-0829
1995-0837
DOI:10.1134/S1995082922010084