Salmo ischchan Kessler, 1877

Sevan trout

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Salmoniformes \| Salmonidae \| Salmoninae
Synonyms	Salmo danilewskii, Salmo gegarkuni, Salmo ischchan aestivalis, ... more
Common names	Иссык-Көл сому, 塞凡湖鳟, Letnij bakhtak, ... more

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Picture by Schöffmann, J.

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Main reference

Berg, L.S. 1962. (Ref. 593)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 104 cm TL male/unsexed; (Ref. 593); common length : 33.0 cm TL male/unsexed; (Ref. 593); max. published weight: 17.0 kg (Ref. 593)

Environment

Demersal; freshwater

Climate / Range

Temperate; 41°N - 40°N, 44°E - 46°E

Former USSR: Armenia, Lake Sevan.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

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) (Ref. 593).


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

Human uses
Fisheries: commercial; gamefish: yes


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tm=3-4)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
High vulnerability (65 of 100)	Very high

Entered by Luna, Susan M.

Modified by Froese, Rainer

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Page last modified by : elaxamana, 15 July 2009

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