Species composition and quantitative representation of fishes in biotopes with the riffle minnow Alburnoides bipunctatus

Species composition of fishes was studied in rivers (capture sites) inhabited by the riffle minnow. In some localities, this species proved to occupy a leading position in the ichthyofauna, being obviously dominant. In small rivers, 16 species were caught together with it, including seven species re...

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Bibliographic Details
Published in:Russian journal of ecology 2009-05, Vol.40 (3), p.194-198
Main Authors: Ruchin, A. B., Shlyakhtin, G. V., Artaev, O. N.
Format: Article
Language:English
Subjects:
Alburnoides bipunctatus
Biomedical and Life Sciences
Biotopes
Ecology
Environment
Fish
Freshwater
Freshwater ecology
Life Sciences
Pisces
Relative abundance
Rivers
Species composition
Water quality
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Summary:Species composition of fishes was studied in rivers (capture sites) inhabited by the riffle minnow. In some localities, this species proved to occupy a leading position in the ichthyofauna, being obviously dominant. In small rivers, 16 species were caught together with it, including seven species regularly occurring in catches. The relative abundance of riffle minnow showed a moderate positive correlation with that of the gudgeon (0.568) and a nonsignificant negative correlation (−0.399) with that of the bleak. It is probable that the population dynamics of riffle minnow are determined mainly by natural intraspecific mechanisms rather than by water quality, which has changed only slightly in the rivers studied.
ISSN:1067-4136
1608-3334
DOI:10.1134/S1067413609030084