Alaska country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Found in Yukon (Ref. 59043).
National Checklist:
Country Information:
National Fisheries Authority: http://www.state.ak.us/local/akpages/FISH.GAME/adfghome.htm
Occurrences: Occurrences Point map
Main Ref: Kottelat, M. and J. Freyhof, 2007
National Database:

Common names from other countries

טרוטנית הקוטב, Nelma, ... more

Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes(Género, Espécies) | ITIS | CoL | WoRMS | Cloffa

> Salmoniformes (Salmons) > Salmonidae (Salmonids) > Coregoninae
Etymology: Stenodus: Greek, stenos = narrow + Greek, odous = teeth (Ref. 45335).
More on author: Pallas.

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

marinhas; Água doce; estuarina bentopelágico; anádromo. Temperate

Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

Arctic Ocean basin, from Ponoi (Kola Peninsula, White Sea basin) eastward to Anadyr (Siberia), Yukon (Alaska) and Mackenzie (Canada) drainages.

Length at first maturity / Tamanho / Peso / Idade

Maturity: L_m ? range ? - ? cm
Max length : 150 cm SL macho/indeterminado; (Ref. 59043)

Found in the pelagic zone at the sea with salinity up to 20 ppt. Inhabits large lowland and piedmont rivers and lakes. Prefers cold water with temperatures below 16° C. Forages and overwinters in lower reaches of large rives, deltas, estuaries and sea, sometimes far from coast. Anadromous or semi-anadromous, living in some rivers and landlocked in some lakes. Undertakes migration to spawn in rivers, moving upstream for long distances, up to uppermost reaches in European rivers. Populations in the lake migrate into tributaries. Juveniles prey on mysids, insect larvae and fry, shifting exclusively to piscivory at about 30 cm SL. Actively feeds on all available fishes. Spawning takes place over shallow waters with sand-gravel bottom and 2-3 m depth (Ref. 59043).

Life cycle and mating behavior Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

Spawning usually takes place only 1-2 times during life, rarely 3, usually every 2-3 years (Ref. 59043).

Referência principal Upload your references | Referências | Coordenador | Colaboradores

Kottelat, M. and J. Freyhof, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref. 59043)

Categoria na Lista Vermelha da IUCN (Ref. 130435)

Preocupação menor (LC) ; Date assessed: 01 January 2008

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

Harmless

Utilização humana

FAO(Publication : search) | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00457 (0.00190 - 0.01097), b=3.13 (2.92 - 3.34), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Nível Trófico (Ref. 69278): 3.6 ±0.3 se; based on size and trophs of closest relatives

Resiliência (Ref. 120179): Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (tm=4-16).

Fishing Vulnerability (Ref. 59153): Very high vulnerability (90 of 100).

Stenodus nelma (Pallas, 1773)