Salvelinus tolmachoffi explained

Salvelinus tolmachoffi, also known as Yessey lake charr, is a freshwater species of fish in the salmon family. It is endemic to Lake Yessey of the Khatanga river basin of the arctic Russia.[1] In 2007, the fish was listed as endangered by IUCN due to over-fishing and poor management of the water body.[2]

Description

Yessey lake charr can grow to a recorded maximum length of 37.0 cm (14.6 inches).[3] The fish lives at or near the bottom of the lake.

The head and back of the fish are blue-black, while the sides of the body are dark-gray with a golden tint and the belly is pale yellow. There are numerous red spots on the sides of the body.[4] [5] The species feed on gammarus, copepods, chironomid larvae, and fish.[6]

Yessey lake charr spawn in autumn, from the second half of October to December, in coastal areas with depths of 2.5 - 4 m.[7]

Notes and References

  1. Ekaterina M. . Kuznetsova . Ethnocultural Portrait of Russia: The Yessey Yakuts. The Life by the Lake (History and Culture of an Ethnic Group) . Journal of Siberian Federal University. Humanities & Social Sciences . April 2018 . 11 . 4 . 561–569 . 10.17516/1997-1370-0232 . 9 December 2023. free .
  2. Web site: Salvelinus tolmachoffi . IUCN REDLIST . IUCN . 9 December 2023.
  3. Book: Berg . L. S. . Freshwater fishes of the U.S.S.R. and adjacent countries: Ryby presnykh vod SSSR i sopredelʹnykh stran . 1962 . Israel Program for Scientific Translations; [available from the Office of Technical Services, U.S. Dept. of Commerce, Washington] . 4th, improved and augm., translated from Russian . 9 December 2023.
  4. Osinov . Alexander G. . Senchukova . Anna L. . Mugue . Nikolai S. . Pavlov . Sergei D. . Chereshnev . Igor A. . Speciation and genetic divergence of three species of charr from ancient Lake El'gygytgyn (Chukotka) and their phylogenetic relationships with other representatives of the genus Salvelinus . Biological Journal of the Linnean Society . September 2015 . 116 . 1 . 63–85 . 10.1111/bij.12559 . 9 December 2023. free .
  5. Dyldin . Yury V. . Hanel . Lubomir . Fricke . Ronald . Orlov . Alexei M. . Romanov . Vladimir I. . Plesnik . Jan . Interesova . Elena A. . Vorobiev . Danil S. . Kochetkova . Maria O. . Fish diversity in freshwater and brackish water ecosystems of Russia and adjacent waters . Publications of the Seto Marine Biological Laboratory . 10 June 2020 . 45 . 47–116 . 9 December 2023 . 0037-2870.
  6. Leis . Eric . Chi . Tran Kim . Lumme . Jaakko . Global Phylogeography of Salmonid Ectoparasites of the Genus Gyrodactylus, with an Emphasis on the Origin of the Circumpolar Gyrodactylus salmonis (Platyhelminthes: Monogenea) . Comparative Parasitology . August 2021 . 88 . 1 . 130–143 . 10.1654/1525-2647-88.1.130 . 9 December 2023 . 1525-2647.
  7. Dyldin . Yu. V. . Orlov . A. M. . Hanel . L. . Romanov . V. I. . Fricke . R. . Vasil’eva . E. D. . Ichthyofauna of the Fresh and Brackish Waters of Russia and Adjacent Areas: Annotated List with Taxonomic Comments. 2. Order Cypriniformes, Suborders Catostomoidei, Cobitoidei and Cyprinoidei . Journal of Ichthyology . August 2023 . 63 . 4 . 636–686 . 10.1134/S0032945223040045 . 9 December 2023.

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