On the diversity of fishes in mountain lakes of the Amur basin

Results of the study of 11 lakes situated in the mountainous part of the Amur River basin are reported. Six fish species, namely, blunt-snouted lenok Brachymystax tumensis , Baikal-Lena grayling Thymallus baicalolenensis , Siberian stone loach Barbatula toni , Lagowski’s minnow Rhynchocypris lagowsk...

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Bibliographic Details
Published in:Journal of ichthyology 2017-11, Vol.57 (6), p.860-869
Main Author: Antonov, A. L.
Format: Article
Language:English
Subjects:
Barbatula toni
Biomedical and Life Sciences
Brachymystax tumensis
Cottus szanaga
Freshwater fishes
Lakes
Life Sciences
Marine fishes
Rhynchocypris lagowskii
River basins
Rivers
Species
Thymallus baicalolenensis
Zoology
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Summary:Results of the study of 11 lakes situated in the mountainous part of the Amur River basin are reported. Six fish species, namely, blunt-snouted lenok Brachymystax tumensis , Baikal-Lena grayling Thymallus baicalolenensis , Siberian stone loach Barbatula toni , Lagowski’s minnow Rhynchocypris lagowskii , Czekanowski’s minnow Rh. czekanowskii , and Amur sculpin Cottus szanaga , were found in five lakes. Four species were found in one lake (Lake Pereval’noe, basin of the Amgun’ River), and two species were found in each of the remaining lakes. Lenok and Amur sculpin were the most common species. The fauna of Lake Okonon (basin of the river Zeya) was the most specific and did not have analogs among the lake faunas; Czekanowski’s minnow and Baikal black grayling were found in this lake. The lenok ecotype that formed in the mountain lakes differed from the river lenok in some regards. The potential pathways of formation and protection of mountain lake ichthyocenoses of the Amur basin are discussed.
ISSN:0032-9452
1555-6425
DOI:10.1134/S0032945217060017