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Salmo ischchan Kessler, 1877

Sevan trout
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Image of Salmo ischchan (Sevan trout)
Salmo ischchan
Picture by Schöffmann, J.


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

Классификация / Names народные названия | синонимы | Catalog of Fishes(род, виды) | 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 экология

; пресноводный демерсальный.   Temperate; 41°N - 40°N, 44°E - 46°E

распространение страны | регионы FAO | Ecosystems | места находок | Point map | интродукции | Faunafri

Former USSR: Armenia, Lake Sevan.

Size / Вес / Возраст

Maturity: Lm ?  range ? - ? cm
Max length : 104 cm TL самец/пол неопределен; (Ref. 593); common length : 33.0 cm TL самец/пол неопределен; (Ref. 593); наибольший вес (опубликованные данные): 17.0 kg (Ref. 593)

биология     глоссарий (например 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 | размножение | Spawnings | Egg(s) | Fecundities | личинки

Needs better reference.

Основная ссылка Upload your references | ссылки | координатор | соавторы

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)

Статус Красного Списка МСОП (Ref. 130435)

  В критическом состоянии (CR) (B2ab(i,ii,iii,iv)); Date assessed: 06 February 2014

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Угроза для людей

  Harmless




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дополнительная информация

Trophic ecology
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Food consumptions
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хищники
Ecology
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Length-weight rel.
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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).
Trophic level (Ref. 69278):  3.3   ±0.53 se; based on food items.
устойчивость к внешним воздействиям (Ref. 120179):  средний (среднего размера), минимальное время удвоения популяции 1.4-4.4 года (Assuming tm=3-4).
Fishing Vulnerability (Ref. 59153):  High vulnerability (62 of 100).
Категория цены (Ref. 80766):   Very high.