The Amur grayling (Thymallus grubii) is a species of freshwater ray-finned fish from the genus Thymallus (graylings) of the family Salmonidae, endemic to the Amur basin in Russian Far East and Northeast China and also the Onon and Kherlen basins in Mongolia. It is sometimes difficult to differentiate the species with the Lower Amur grayling (Thymallus tugarinae). It is seen as a game fish and food fish in Russian Far East and the Chinese Heilongjiang province.[1]
| Amur grayling | |
|---|---|
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| In an aquarium | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Salmoniformes |
| Family: | Salmonidae |
| Genus: | Thymallus |
| Species: | T. grubii
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| Binomial name | |
| Thymallus grubii Dybowski, 1869
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Description
editThe body of Amur grayling is usually dark, with its back being slightly purple. There are some small dark spots on the sides of the body. The edge of the dorsal fin is purplish red mixed with some spots.[2] It can reach a maximum length of 31.3 cm.[3]
Life cycle
editIn winter, adult Amur grayling are found in deep parts of mountain streams. While in summer, they are usually found in clear streams flowing slowly with thick aquatic weeds.[4] Most Amur grayling is feed on benthic organisms and insects.[2] They form schools while breeding in clear, fast-flowing streams.[2]
See also
editReferences
edit- ^ Bogutskaya, Nina; Naseka, Alexander M.; Shedko, Sergei V.; Vasil'eva, Ekaterina (December 2008). "The fishes of the Amur River: Updated check-list and zoogeography". Ichthyological Exploration of Freshwaters (19): 301–366. Retrieved 28 November 2023.
- ^ a b c Sung, Wang; Yue, Peiqi; Chen, Yiyu (1998). China red data book of endangered animals : Pisces. Beijing: Beijing Science Press. p. 247. ISBN 978-7-03-006401-1. Retrieved 28 November 2023.
- ^ Du, Xue; Song, Dan; Wang, Huibo; Huang, Xiaoli; Liu, Hui; Huo, Tangbin (February 2021). "Length‐weight relationships of eight fish species from the Hailang river, China". Journal of Applied Ichthyology. 37 (1): 160–161. doi:10.1111/jai.14098.
- ^ Chandra, Sudeep (2005). "The Feeding Behaviour of Fish from the Upper Lake Baikal Watershed of the Eroo River in Mongolia". Mongolian Journal of Biological Sciences. 3 (1). doi:10.22353/mjbs.2005.03.06. Retrieved 28 November 2023.