Sevan trout (Salmo ischchan)

Scientific name: Salmo ischchan Kessler, 1877

Sevan trout (Salmo ischchan)

The Sevan trout (Salmo ischchan) is a freshwater fish of the family Salmonidae. Native range: Former USSR, Armenia, Lake Sevan.

Biology

The adults spawn in the lake proper at a depth range of 0.5 to 3 m, over fine gravel. Two spawning stocks are known: one spawns in the northwestern corner of the lake from the beginning of November till the end of December; the other spawns at the southeastern corner, from the middle or the end of January till the end of March. This fish approaches the coast twice a year: from April till July and from October till December. In mid winter and at the end of summer, it leaves the coasts to stay at greater depth. Adults feed exclusively on sand hoppers (Amphipoda).

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Salmo ischchan
Family
Salmonidae (Salmonids)
Order
Salmoniformes (Salmons)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
104
Common length
33.0
Environment
Freshwater; demersal
Climate
Temperate
Distribution
Former USSR: Armenia, Lake Sevan.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless
Uses
Fisheries: commercial; gamefish: yes
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tm=3-4)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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