Article
Article name Role of Alien Species Gmelinoides fasciatus in Food of Perch Perca Fluviatilis Linnaeus, 1758 of Lake Arakhlei
Authors Gorlachev V.P.Doctor of Pedagogy, Professor valeriigorlachev@mail.ru
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DOI
UDK УДК 597.556.331.1
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Annotation In the article materials on food of a perch are presented. It is shown, that from the 60s till now the food spectrum of a perch has strongly changed. There was a reduction of a share of fish food, and increase in consumption of a zooplankton and an alien species Gmelinoides fasciatus. Much attention is given to studying of a trophic role of an alien species. It is noticed that in seasonal aspect a perch consumes species of different size. Four dimensional groups G. fasciatus are the most often used by perch.
Key words perch, food, Gmelinoides fasciatus, lake Arakhlei, alien species, food spectrum.
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Full articleRole of Alien Species Gmelinoides fasciatus in Food of Perch Perca Fluviatilis Linnaeus, 1758 of Lake Arakhlei