Kazakhstan country information

Common names: Sevan trout
Occurrence: introduced
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Introduced in Lake Balkhash (Ref. 41038).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/kz.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Mitrofanov, V.P. and T. Petr, 1999
National Database:

Common names from other countries

Ишхан (=севанская форель), Išhan, Иссыккульская форель, ... more

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | 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 Ecologie

; zoet water demersaal. Temperate; 41°N - 40°N, 44°E - 46°E

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Former USSR: Armenia, Lake Sevan.

Grootte / Gewicht / Leeftijd

Maturity: L_m ? range ? - ? cm
Max length : 104 cm TL mannelijk / geslacht onbekend; (Ref. 593); common length : 33.0 cm TL mannelijk / geslacht onbekend; (Ref. 593); max. gepubliceerd gewicht: 17.0 kg (Ref. 593)

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).

Levenscyclus en paargedrag Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven

Needs better reference.

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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)

Status op de Rode Lijst van het IUCN (Ref. 130435)

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

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Harmless

Gebruik door de mens

Visserij: commercieel; sportvis: ja

FAO(Publication : search) | FishSource |

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Estimates based on models

Fylogenetische diversiteitsindex (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).

Trofisch niveau (Ref. 69278): 3.3 ±0.53 se; based on food items.

Weerstandsvermogen (Ref. 120179): Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Assuming tm=3-4).

Fishing Vulnerability (Ref. 59153): High vulnerability (62 of 100).

Prijsklasse (Ref. 80766): Very high.

Salmo ischchan Kessler, 1877