Lenok

Lenoks, otherwise known as Asiatic trout or Manchurian trout, are salmonid fish of the genus Brachymystax, native to rivers and lakes in Mongolia, Kazakhstan, wider Siberia, Northern China and Korea. Lenoks tend to live in rivers of any sort, but usually upstream, where the water is colder. Though overall widespread, lenoks in South Korea are now on the verge of extinction due to deforestation and they have also declined in China.