Lenok

Lenoks
Temporal range: Miocene–Recent
Brachymystax lenok
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Salmoniformes
Family: Salmonidae
Subfamily: Salmoninae
Genus: Brachymystax
Günther, 1866 [1]
Species

Brachymystax lenok
Brachymystax savinovi
Brachymystax tumensis

Lenoks (otherwise known as Asiatic trout or Manchurian trout)[2] are a genus, Brachymystax, of salmonid fishes. It contains three species living in Mongolia, Siberia, the far East of Russia, Northern China, the Sea of Japan[3] and South Korea.[2][4][5]

Contents

Appearance

Lenoks can belong to the sharp-nosed or blunt-nosed form. Populations of blunt-nosed lenoks are generally found in different areas than populations of sharp-nosed lenoks.[4] Brachymystax savinovi typically grow to about 20 inches (510 mm).[6] They are relatively round in shape, and speckled with dark brown spots.[2][7] They usually weigh up to 15 kilograms (33 lb).[7] Their ventrals are usually colored a reddish hue, and their pectoral fins yellowish.[8]

Lenoks in Korea are now on the verge of extinction due to deforestation.[5]

Habitat

Lenoks tend to live in rivers of any sort,[9] but usually upstream, where the water is colder.[5]

History

During the glacial epoch, lenoks were landlocked inland of the Korean peninsula.[5]

References

  1. ^ "Brachymystax". Integrated Taxonomic Information System. http://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=623307. 
  2. ^ a b c http://jamescard.net/flyfishing/
  3. ^ http://ibss.febras.ru/files/00001742.pdf
  4. ^ a b Alekseev, S. S.; Osinov, A. G. (2006). "Blunt-snouted lenoks (genus Brachymystax: Salmoniformes, Salmonidae) from the Ob' basin: New data on morphology and allozyme variation". Journal of Ichthyology 46 (7): 500–516. doi:10.1134/S0032945206070022.  edit
  5. ^ a b c d http://www.cherrytrout.com/fish.html
  6. ^ http://thewebsiteofeverything.com/animals/fish/Salmoniformes/Salmonidae/Brachymystax-savinovi
  7. ^ a b http://www.ibextours.com/Eng/exclusive_salmon.htm
  8. ^ Shaw, George; Stephens, James Francis. General zoology, or Systematic natural history, Volume 5, Part 1. 
  9. ^ http://www.gofishn.com/content/russia