Salmo ezenami
Encyclopedia
Salmo ezenami is a a critically endangered
freshwater salmonid fish, endemic of Lake Kezenoi-Am (Lake Eizenam) in Northern Caucasus.
The only native occurrence, in Lake Kezenoi-Am in Chechnya
at the border of Dagestan
, is 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.
Salmo ezenami used to be the only fish species in Lake Kezenoi-Am. However, two other species, the European chub
and Gobio holurus have been introduced, and present a threat by eating the fry of Salmo.
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, chironomids; adults also eat molluscs and fishes, after the introduction of nonnative species.
Critically endangered
Version 2010.3 of the IUCN Red List of Threatened Species identified 3744 Critically Endangered species, subspecies and varieties, stocks and subpopulations.Critically Endangered by kingdom:*1993 Animalia*2 Fungi*1745 Plantae*4 Protista-References:...
freshwater salmonid fish, endemic of Lake Kezenoi-Am (Lake Eizenam) in Northern Caucasus.
The only native occurrence, in Lake Kezenoi-Am in Chechnya
Chechnya
The Chechen Republic , commonly referred to as Chechnya , also spelled Chechnia or Chechenia, sometimes referred to as Ichkeria , is a federal subject of Russia . It is located in the southeastern part of Europe in the Northern Caucasus mountains. The capital of the republic is the city of Grozny...
at the border of Dagestan
Dagestan
The Republic of Dagestan is a federal subject of Russia, located in the North Caucasus region. Its capital and the largest city is Makhachkala, located at the center of Dagestan on the Caspian Sea...
, is 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.
Salmo ezenami used to be the only fish species in Lake Kezenoi-Am. However, two other species, the European chub
European chub
The European chub , sometimes called the round chub, fat chub, chevin, pollard or simply "the" chub, is a freshwater fish of the family Cyprinidae...
and Gobio holurus have been introduced, and present a threat by eating the fry of Salmo.
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, chironomids; adults also eat molluscs and fishes, after the introduction of nonnative species.