Stenodus leucichthys, Sheefish : fisheries, aquaculture, gamefish

Stenodus leucichthys (Güldenstädt, 1772)

Sheefish
Ladda upp din foton och Videor
 Bilder | Google image
Image of Stenodus leucichthys (Sheefish)
Stenodus leucichthys
Bild av Hillen, B.

Klassificering / Namn Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

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

Taxonomic Remarks
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.

Miljö: miljö / Klimatzon / djupintervall / distributionsområde Ekologi

marina; sötvatten; brackvatten bottenlevande; anadrom (Ref. 138280); djupintervall 10 - ? m (Ref. 4779). Boreal; 73°N - 58°N, 36°E - 111°W

Utbredning Territorier | FAO områden | Ekosystem | Förekomster | Prickkarta | Utplanteringar | 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).

Längd vid första mognad / Storlek / Vikt / Ålder

Könsmognad: Lm 72.5, range 70 - 75 cm
Max length : 150 cm TL hane/ej könsbestämd; (Ref. 4574); common length : 61.0 cm TL hane/ej könsbestämd; (Ref. 12193); publicerad maxvikt: 40.0 kg (Ref. 10318); rapporterad maxålder: 22 år (Ref. 4576)

Kort beskrivning Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 0; Mjukstrålar i ryggfenan (totalt) : 11 - 19; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 14 - 19; Ryggkotor: 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).
Body shape (shape guide): fusiform / normal.

Biologi     Ordlista (t.ex. epibenthic)

Nerito-pelagic (Ref. 58426). Adults occur in coastal brackish waters near mouths of rivers, but usually in rivers or some land-locked lakes (Ref. 4779). At the sea, they are found throughout basin in pelagic zone with temperatures below 18° C and 20-50 m deep (Ref. 59043). Juveniles and adults 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). Mature individuals spawn on gravel shallows (Ref. 59043). Flesh is white, sweet and slightly oily (Ref. 27547). Sold fresh or frozen.

Livscykel och parningsbeteende Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver

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).

Huvudreferens Ladda upp dina referenser | referenser | Koordinator | Medarbetare

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)

Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))

  Near Threatened (NT) (C2a(ii)); Date assessed: 18 October 2023

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Hot mot människor

  Harmless





Mänskliga användningsområden

Fiskeri: mindre kommeriell; Vattenbruk: kommersiell; sportfisk: ja
FAO - Publication: search | FishSource | Havet omkring oss

Ytterligare information

Trofisk ekologi
Livsmedelsartiklar (preys)
Födosammansättning
Födointag
Matransoner
Predatorer
Ekologi
Ekologi
Populationsdynamik
Tillväxtparametrar
Max. åldrar / storlekar
Längd-vikt rel.
Längd-längd rel.
Längd-frekvenser
Massakonvertering
Rekrytering
Abundans
Livscykel
Reproduktion
Könsmognad
Mognad/Gills rel.
Fekunditet
Lek
Lekande aggregat
Ägg
Utveckling av ägg
Larver
Larvdynamik
Utbredning
Territorier
FAO områden
Ekosystem
Förekomster
Utplanteringar
BRUVS - Videor
Anatomi
Gälyta
Hjärna
Otolit
Fysiologi
Kroppssammansättning
Näringsämnen
Syreförbrukning
Typ av simning
Simhastighet
Visuella pigment
Ljud från fisk
Sjukdomar & Parasiter
Toxicitet (LC50)
Genetik
Genom
Genetik
Heterozygositet
Ärftlighet
Genetisk mångfald
Människorelaterad
Vattenbrukssystem
Vattenbruksprofiler
Avelslinjer
Ciguatera-fall
Frimärken, mynt, diverse.
Uppsökande verksamhet
Medarbetare
Taxonomi
Populärnamn
synonymer
Morfologi
Morfometri
Bilder
referenser
referenser

Verktyg

E-bok | Fälthandbok | Bestämningsnycklar | Längdfördelnings-verktyg | Livshistorie-verktyg | Prickkarta | Fångst-MSY |

Särskilda rapporter

Kontrollera för underhåll av akvarium | Kontrollera om det finns faktablad om arter | Kontrollera om det finns faktablad om vattenbruk

Ladda ner XML

Sammanfattande sida | Punktdata | Populärnamn | foton

Internet-källor

AFORO (otoliths) | Alien/Invasive Species database | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Släkte, Arter | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | Nationella databaser | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, sök | World Records Freshwater Fishing | Zoologiskt register

Uppskattningar baserade på modeller

Index för fylogenetisk mångfald
(Ref. 82804) 		PD50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00479 (0.00394 - 0.00581), b=3.18 (3.13 - 3.23), in cm total length, based on LWR estimates for this species (Ref. 93245).
Trofisk nivå
(Ref. 69278) 		4.1   ±0.74 se; based on food items.
Generation time 14.7 (8.1 - 19.6) years. Estimated as median ln(3)/K based on 10 growth studies.
Resiliens
(Ref. 120179) 		Låg, lägsta populationsfördubblingstid 4,5-14 år (K=0.05-0.10; tm=5-12; tmax=22; Fec=80,000).
Rate of population increase Prior r = 0.42, 95% CL = 0.28 - 0.63, Based on 2 data-limited stock assessments.
Sårbarhet i fisket
(Ref. 59153) 		High to very high vulnerability (74 of 100). 🛈
Priskategori
(Ref. 80766) 		Very high.
Näringsämnen
(Ref. 124155) 		Calcium = 10.3 [5.6, 24.2] mg/100g; Iron = 0.409 [0.208, 0.798] mg/100g; Protein = 18.8 [17.2, 20.2] %; Omega3 = 0.565 [0.227, 1.537] g/100g; Selenium = 17.9 [7.4, 43.7] μg/100g; VitaminA = 8.75 [1.47, 53.62] μg/100g; Zinc = 0.304 [0.204, 0.438] mg/100g (wet weight); based on nutrient studies.