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Salmo ezenami

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Salmo ezenami
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Salmoniformes
Family: Salmonidae
Genus: Salmo
Species:
S. ezenami
Binomial name
Salmo ezenami

Salmo ezenami is a critically endangered freshwater salmonid fish, endemic to Lake Kezenoi-Am (Lake Eizenam) in Northern Caucasus.[1]

The only natural habitat where this species occurs is in Lake Kezenoi-Am in Chechnya at the border of Dagestan.This lake is situated in a cold alpine lake (area 2.4 km2, maximum depth 74 m, 1870 m altitude). In addition, the species has been introduced to another lake in Dagestan, Lake Mochokh, probably successfully.[2]

Salmo ezenami used to be the only fish species in Lake Kezenoi-Am. However, two other species, the European chub and Caspian gudgeon have been introduced, and present a threat by eating the fry of Salmo.[2]

Salmo ezenami spawns in the lake, close to underwater springs. Adult fish also probably migrate to tributaries. There are separate small-sized (adults 160–260 mm) and large-sized forms (380–1130 mm). Young prey on gammarids and chironomids; adults also eat molluscs and fishes, after the introduction of nonnative species.[2]

References

[edit]
  1. ^ "Salmo ezenami". Fishbase. Retrieved 31 March 2009.
  2. ^ a b c Freyhof, J. & Kottelat, M. 2008. Salmo ezenami. In: IUCN Red List of Threatened Species. Version 2010.1. Retrieved 5 April 2010.