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Stenodus leucichthys (Güldenstädt, 1772)

Sheefish
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Native range
This map was computer-generated and has not yet been reviewed.
Stenodus leucichthys   AquaMaps   Data sources: GBIF OBIS
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Stenodus leucichthys
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Classification / Names Noms communs | Synonymes | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinoptérygiens (poissons à nageoires rayonnées) > Salmoniformes (Salmons) > Salmonidae (Salmonids) > Coregoninae
Etymology: Stenodus: Greek, stenos = narrow + Greek, odous = teeth (Ref. 45335);  leucichthys: leucichthys meaning white fish (Ref. 1998).

Issue
Stenodus nelma (Pallas, 1773) is a valid species according to Kottelat and Freyhof (2007: Ref. 82592). The corresponding species summary page will be created in the future.

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

; marin; eau douce; saumâtre démersal; anadrome (Ref. 51243); profondeur 10 - ? m (Ref. 4779).   Boreal; 73°N - 58°N, 36°E - 111°W

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

North America: Arctic drainages from Anderson River in Northwest Territories, Canada to Kuskokwim River (Bering Sea tributary) in Alaska. Upstream in Mackenzie River and Yukon River drainages to British Columbia, Canada (Ref. 5723). Eurasia: Caspian Sea (common in central and southern Caspian in summer), Volga, Ural and Terak drainages (Ref. 59043). Hybridization with Coregonus nelsoni, Coregonus autumnalis and Coregonus muksun are due more to the broadcasting of eggs and sperm rather than pairing between species or genera (Ref. 27547).

Length at first maturity / Taille / Poids / Âge

Maturity: Lm ?, range 70 - 75 cm
Max length : 150 cm TL mâle / non sexé; (Ref. 4574); common length : 61.0 cm TL mâle / non sexé; (Ref. 12193); poids max. publié: 40.0 kg (Ref. 10318); âge max. reporté: 22 années (Ref. 4576)

Description synthétique Morphologie | Morphométrie

Épines dorsales (Total): 0; Rayons mous dorsaux (Total): 11-19; Épines anales 0; Rayons mous anaux: 14 - 19; Vertèbres: 63 - 69. Distinguished by its large mouth, the protruding lower jaw, and the presence of only 13 to 17 gill rakers on the lower limb of the first gill arch (Ref. 27547). Dorsal fin high and pointed; pelvic fins with well developed axillary process (Ref. 27547). Generally silvery, with the back usually rather green, blue or pale brown; silvery white below; dorsal and caudal fins have dusky margins, other fins pale (Ref. 27547).

Biologie     Glossaire (ex. epibenthic)

Nerito-pelagic (Ref. 58426). Occurs in coastal brackish waters near mouths of rivers, but usually in rivers or some land-locked lakes (Ref. 4779). At the sea, it is found throughout basin in pelagic zone with temperatures below 18° C and 20-50 m deep (Ref. 59043). Juveniles and adult overwinter and forage at the sea. Encountered in large lowland rivers during migration (Ref. 59043). Adults feed mostly on small fishes; young eat aquatic insect larvae and planktonic crustaceans (Ref. 4779). During spawning migration, it feeds little if at all (Ref. 27547). Spawns on gravel shallows (Ref. 59043). Flesh is white, sweet and slightly oily (Ref. 27547). Sold fresh or frozen.

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Upstream migration from wintering areas begins at ice break-up. Early upstream movement may be associated with feeding, but movement soon becomes a definite migration to the spawning area. Spawning begins at dusk, and continuing well into the night. A female accompanied by a male, swims to the surface near the upstream end of the spawning ground. She rapidly moves across the current, extruding her eggs. The male, stays below the female so that as the eggs sink, sperm released, fertilizes the eggs. After completing a spawning pass, the female drifts downstream. She may repeat the spawning act over the downstream portion of the spawning area or may move upstream to the head of the grounds before releasing more eggs. Following spawning, there is a fairly rapid downstream migration to wintering grounds (Ref. 27547). It is not certain if spawning occurs annually or at longer intervals (Ref. 27547). Russian fish appear to spawn only every third or fourth year (Ref. 28219). Spawning frequency at Selawik, Alaska may be every other year (Ref. 27547).

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Svetovidov, A.N., 1984. Salmonidae. p. 373-385. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the north-eastern Atlantic and the Mediterranean. UNESCO, Paris. vol. 1. (Ref. 4779)

Statut dans la liste rouge de l'IUCN (Ref. 119314)

  Eteint en milieu naturel (EW) ; Date assessed: 01 January 2008

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless





Utilisations par l'homme

Pêcheries: intérêt commercial mineur; Aquaculture: commercial; pêche sportive: oui
FAO(Publication : search) | FishSource | Sea Around Us

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Noms communs
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Métabolisme
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Écotoxicologie
Reproduction
Maturité
Frai
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Fécondité
Œufs
Développement de l'œuf
Références
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Profil d'aquaculture
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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00427 (0.00264 - 0.00688), b=3.18 (3.04 - 3.32), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Niveau trophique (Ref. 69278):  4.2   ±0.75 se; Based on food items.
Résilience (Ref. 69278):  Faible, temps minimum de doublement de population : 4,5 à 14 années (K=0.05-0.10; tm=5-12; tmax=22; Fec=80,000).
Prior r = 0.42, 95% CL = 0.28 - 0.63, Based on 2 stock assessments.
Vulnérabilité (Ref. 59153):  High to very high vulnerability (74 of 100) .
Catégorie de prix (Ref. 80766):   Very high.