Finding of Arcrtic Charr Salvelinus alpinus (Salmonidae) and Sculpin Cottus cf. poecilopus (Cottidae) in the Verkhnyaya Angara basin Near the Divide with the Lena River System: New Data About the Invasion Routes of the Representatives of Lena Ichthyofauna Into Baikal Basin
| Autor: | V. P. Samusenok, S. S. Alekseyev, A. N. Matveev, I. V. Samusenok, A. I. Vokin, R. S. Andreev, A. L. Yur’ev |
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| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
education.field_of_study geography.geographical_feature_category biology 010604 marine biology & hydrobiology Population Drainage basin Context (language use) 04 agricultural and veterinary sciences Aquatic Science Cottidae biology.organism_classification 01 natural sciences Geography Oceanography Arctic 040102 fisheries 0401 agriculture forestry and fisheries Sculpin General Agricultural and Biological Sciences education Cottus Salvelinus |
| Zdroj: | Journal of Ichthyology. 61:396-406 |
| ISSN: | 1555-6425 0032-9452 |
| DOI: | 10.1134/s0032945221030024 |
| Popis: | In Lake Amut (the Verkhnyaya Angara drainage basin) the third population of Arctic charr Salvelinus alpinus (L.) in Baikal basin was found, a presumed invader from the Lena basin; besides, one more representative of Lena ichthyofauna was recorded—sculpin Cottus cf. poecilopus Heckel. This lake is situated close to the divide with the Pravaya Mama River (the Vitim basin), not far from its main channel. The relief structure of the watershed area, in which Lake Amut is located, indicates high probability of the invasion of Lena species into Baikal basin at this place. Data on morphology, age, growth and diet of Arctic charr from Lake Amut are presented and compared with the data on other charr from Baikal basin. New records are discussed in the context of Pleistocene paleogeography of the Baikal region relevant to the history of its fish fauna formation. |
| Databáze: | OpenAIRE |
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