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Reproductive strategies of two Arctic charr Salvelinus alpinus (L.) forms in Kiryalta lakes, Transbaikalia, Russiaстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Alekseyev S.S., Pichugin M.Yu, Samusenok V.P., Gordeeva N.V., Yur’ev A.L., Khlystov V.S., Matveev A.N.
- Журнал: Hydrobiologia
- Год издания: 2019
- Издательство: Springer Nature
- Местоположение издательства: Switzerland
- DOI: 10.1007/s10750-019-3894-y
- Аннотация: The divergence of reproductive strategies is an important factor of intraspecific diversification. We describe contrasting spawning patterns of parapatric and sympatric Arctic charr forms in the system of two interconnected lakes Kiryalta-3 and Kiryalta-4 in Transbaikalia and survey charr reproduction in nine more lakes of this region. In each of Kiryalta lakes, two charr forms differing in growth and diets are present. In one, at least one form spawns in spring and the forms are morphologically distinct, in the other, both spawn in autumn and are morphologically more similar. Overall, high variety of reproductive patterns with respect to spawning time, duration, location and depth of spawning grounds and bottom substrate was revealed in Transbaikalia. Spawning in different populations and sympatric forms takes place in early or late autumn, spring, summer or during more than one season; in the littoral or profundal zone, over rocks or silt and proceeds from one-two weeks to at least seven months. Difference in peak spawning time between sympatric forms can reach five months and is correlated with their morphological and genetic differentiation. Such diversification of reproductive strategies largely contributed to the emergence of exceptionally high diversity of Transbaikalian charr.
- Добавил в систему: Пичугин Михаил Юрьевич