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Salmo ischchan Kessler, 1877

Sevan trout
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Salmo ischchan
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Kyrgyzstan country information

Common names: Sevan trout, Иссык-Көл сому, Иссыккульская форель
Occurrence: introduced
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Occurs in Lake Issyk-kul.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/kg.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Savvaitova, K.A. and T. Petr, 1999
National Database:

Common names from other countries

Classification / Names Κοινά ονόματα | Συνώνυμα | Catalog of Fishes(Γένος, Είδη) | ITIS | CoL | WoRMS | Cloffa

> Salmoniformes (Salmons) > Salmonidae (Salmonids) > Salmoninae
Etymology: Salmo: Latin, salmo, Plinius = salmon (Ref. 45335).

Environment: milieu / climate zone / depth range / distribution range Οικολογία

; Γλυκού νερού βενθικό(ς).   Temperate; 41°N - 40°N, 44°E - 46°E

Κατανομή Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Point map | Εισαγωγές | Faunafri

Former USSR: Armenia, Lake Sevan.

Μέγεθος / Βάρος / Age

Maturity: Lm ?  range ? - ? cm
Max length : 104 cm TL αρσενικό/απροσδιόριστο; (Ref. 593); common length : 33.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 593); μεγ. δημοσιευμένο βάρος: 17.0 kg (Ref. 593)

Βιολογία     Γλωσσάρι (π.χ. epibenthic)

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).

Life cycle and mating behavior Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες

Needs better reference.

Main reference Upload your references | Αναφορές | Συντονιστής | Συνεργάτες

Berg, L.S., 1962. Freshwater fishes of the U.S.S.R. and adjacent countries. volume 1, 4th edition. Israel Program for Scientific Translations Ltd, Jerusalem. (Russian version published 1948). (Ref. 593)

IUCN Red List Status (Ref. 130435)

  Critically Endangered (CR) (B2ab(i,ii,iii,iv)); Date assessed: 06 February 2014

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

αλιεία: Εμπορικό(ά); αλιεία αναψυχής: ναί
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Διαδικτυακές πηγές

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00488 - 0.02245), b=3.03 (2.86 - 3.20), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Τροφικό Επίπεδο (Ref. 69278):  3.3   ±0.53 se; based on food items.
Ελαστικότητα (Ref. 120179):  Μεσαίο(α), ελάχιστος χρόνος για διπλασιασμό πληθυσμού 1,4 - 4,4 έτη (Assuming tm=3-4).
Fishing Vulnerability (Ref. 59153):  High vulnerability (62 of 100).
Price category (Ref. 80766):   Very high.