Structure of “Species Flocks” in Fishes: Channels of the Splanchnocranium Divergence in Endemic Lacustrine Benthivorous Chars (Salvelinus, Salmonidae, Teleostei) in Lake Kronotskoye, Kamchatka

Saltykov, E.A.; Markevich, G.N.; Esin, E.V.; Kuzishchin, K.V.

Авторы: Saltykov E.A., Markevich G.N., Esin E.V., Kuzishchin K.V.
Журнал: Doklady Biological Sciences
Том: 464
Год издания: 2015
Издательство: Pleiades Publishing, Ltd
Местоположение издательства: Road Town, United Kingdom
Первая страница: 226
Последняя страница: 229
DOI: 10.1134/S0012496615050014
Аннотация: The structure of splanchnocranium bones has been studied in four endemic benthivorous chars (the genus Salvelinus) from Lake Kronotskoe (Kamchatka). It has been found that, according to the whole set of characters of the splanchnocranium structure, the most expressed differences are observed between specialized forms, nosed and largemouth chars, inhabiting different biotopes of the lake. Differences between smallmouth and white chars are less pronounced, and the species are characterized by generalized features of the structure of jaws. It can be suggested that, in addition to diverse feeding preferences within a feeding niche, an extremely high diversity of chars in Lake Kronotskoe is due to a complex geomorphological structure of the water system. Thus, the “species flock” comprising a complex set of diverse benthivorous morphotypes has been formed and exists in Lake Kronotskoe. Chars from Lake Kronotskoe are a representative example of sympatric species formation by way of formation of new forms differing from each other in morphological, ecological, and trophic features.
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Structure of “Species Flocks” in Fishes: Channels of the Splanchnocranium Divergence in Endemic Lacustrine Benthivorous Chars (Salvelinus, Salmonidae, Teleostei) in Lake Kronotskoye, Kamchatkaстатья

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