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RAS BiologyЭкология Ecology

  • ISSN (Print) 0367-0597
  • ISSN (Online) 3034-6142

REPRODUCTION AND GENETIC DIFFERENTIATION OF NELMA (STENODUS NELMA PALLAS, 1773) IN LARGE RIVER BASINS OF WESTERN SIBERIA

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PII
S3034614225050017-1
DOI
10.7868/S3034614225050017
Publication type
Article
Status
Published
Authors
V. D. Bogdanov
  • Affiliation: Institute of Plant and Animal Ecology, Ural Branch, Russian Academy of Sciences
L. E. Yalkovskaya
  • Affiliation: Institute of Plant and Animal Ecology, Ural Branch, Russian Academy of Sciences
M. A. Krokhaleva
  • Affiliation: Institute of Plant and Animal Ecology, Ural Branch, Russian Academy of Sciences
A. V. Borodin
  • Affiliation: Institute of Plant and Animal Ecology, Ural Branch, Russian Academy of Sciences
Volume/ Edition
Volume / Issue number 5
Pages
329-340
Abstract
The assessment results of natural reproduction and population structure of nelma in the Ob and Taz basins are presented. Based on the number of the larvae that migrated from spawning grounds and the dynamics of catch, a conclusion about a constant decrease in the species population over 60 years was made. Long-term analysis of the size-age variability of nelma in the Severnaya Sos'va River indicated a stable rejuvenation of the spawning stock at the present and the absence of re-matured individuals. An analysis of the genetic differentiation of the nelma populations of the Ob and Taz was performed. The lack of the differences between two basins indicated the genetic proximity of the nelma populations within Western Siberia. The possibility of restoring the nelma population through artificial reproduction was assessed.
Keywords
Западная Сибирь нельма нерестовые притоки воспроизводство мтДНК генетическое разнообразие антропогенное воздействие численность
Date of publication
05.03.2026
Year of publication
2026
Number of purchasers
0
Views
33

References

  1. 1. Bogdanov V.D., Koporikov A.R., Melnichenko I.P. et al. Abundance dynamics of broad whitefish (Coregonus nasus Pallas, 1776) generations inhabiting the lower reaches of the Ob river in the period of 1981–2023 // Russ. J. of Ecology. 2024. V. 55. № 5. P. 371–381. https://doi.org/10.1134/S1067413624602665
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