Sexual structure and meristic description of goldfish populations from the Dnieper and Pripyat rivers belarusian sections
https://doi.org/10.47612/978-985-880-000000-0-2022-38-119-131
Abstract
The goldfish (Carassius auratus s. lato) populations from the sections of the Dnieper (in Bykhov and Bragin districts, Belarus) and Pripyat (in Mozyr district, Belarus) rivers sections were investigated. Overall 436 goldfish specimens were collected. The populations sexual structure and meristic traits diversity inside and between populations were studied. It has been shown that the Dnieper and Pripyat rivers sections studied are inhabited with bisexual goldfish populations, that corresponds to the amphimyctic type of reproduction. The sexual structure distinctions between populations has been revealed. The goldfish population from the Dnieper river (Bykhov district) is characterized by the males’ qualitative dominance (1♀:1,18♂), while the females prevailed in the populations from the Pripyat and Dnieper (Bragin district) rivers (1,23♀:1♂ and 1,30♀:1♂ respectively). The meristic descriptions of populations were composed and it has been shown that they are common for populations of goldfish from Belarusian water objects. Statistically significant differences between populations in 5 of the 12 meristic traits studied were revealed. Two populations from Dnieper are significally distinct only in 1 trait, and the population from Pripyat differs from them in 3 (Dnieper, Bykhov district) and 4 (Dnieper, Bragin district) meristic traits. The phene pools are most similar in the populations from Dnieper, too, and the phene pool of the Pripyat population shows some differences from them.
About the Author
A. Poletaev
State Research and Production Association «Scientific and practical center of the National academy of sciences of Belarus for bioresources»
Belarus
Belarus
Poletaev Alexei — junior researcher
220072, Minsk, Akademicheskaya Str, 27
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Review
For citations:
Poletaev A. Sexual structure and meristic description of goldfish populations from the Dnieper and Pripyat rivers belarusian sections. Belarus Fish Industry Problems. 2022;(38):119-131. (In Russ.) https://doi.org/10.47612/978-985-880-000000-0-2022-38-119-131
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