Coregonus nelsonii, Alaska whitefish : fisheries, gamefish

Coregonus nelsonii Bean, 1884

Alaska whitefish
Uploaden van je Foto's en video's
 Google afbeelding
Image of Coregonus nelsonii (Alaska whitefish)
Coregonus nelsonii
No image available for this species;
drawing shows typical fish in this Family.

Classificatie / Names Populaire namen | Synoniemen | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (Straalvinnigen) > Salmoniformes (Salmons) > Salmonidae (Salmonids) > Coregoninae
Etymology: Coregonus: Greek, kore = pupils of the eye + Greek, gonia = angle (Ref. 45335).  More on author: Bean.

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

; zoetwater benthopelagisch; potamodroom (Ref. 27547).   Boreal; 68°N - 59°N

Verspreiding Landen | FAO regio's | Ecosystems | Voorkomen | Point map | Introducties | Faunafri

North America: Probably restricted to northern Northwest Territories, Yukon Territory in Canada and Alaska in Yukon River, Paxson Lake, Copper River system, Anderson River and Mackenzie River delta. Hybridizes with Stenodus leucichthys, probably a result of simultaneous broadcasting of reproductive products in the same area; occasionally hybridizes with Coregonus sardinella (Ref. 27547). Belongs to the Coregonus clupeaformis complex (Ref. 27547).

Size / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 56.0 cm TL mannelijk/geslacht niet bekend; (Ref. 5723)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 0; Dorsale zachte stralen (totaal): 11-13; Anale stekels 0; Anale zachte stralen: 10 - 14; Wervels: 60 - 63. Distinguished by the gill rakers that are longer than 20% of the interorbital width, a total of 22 to 27 gill rakers on the first arch (with modal counts of 24 or 25), and a pronounced hump behind the head in adults (Ref. 27547). Adipose fin well developed, often larger in males; axillary process present in pelvic fins (Ref. 27547). Dark brown to midnight blue above fading to silver on sides and wide beneath; no parr marks in young (Ref. 27547).

Biologie     Verklarende woordenlijst (b.v. epibenthic)

Occurs in small to large rivers (Ref. 5723). Rarely enters lakes (Ref. 5723). Makes fairly extensive upstream and downstream movements related to spawning runs (Ref. 27547). Feeds mainly on immature insects (Ref. 27547). Usually does not feed during the latter part of the spawning run (Ref. 27547). Excellent food fish but usually not eaten (Ref. 27547).

Life cycle and mating behavior Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

The spawning run involves an upward migration beginnning as early as late June. The spawning act occurs at night or during the day. A female begins to swim vertically toward the surface, belly upstream. A male (sometimes 2 or 3) joins her and eggs and milt are released as fish approach the surface. The fish break the surface, fall away from each other and return to the bottom. After spawning most move downstream. The young of the year move downstream during their first year and do not return until they are sexually mature. Generally, the same spawning grounds are utilized yearly (Ref. 27547).

Voornaamste referentie Upload your references | Referenties | Coördinator | Medewerkers

Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)

Status op de Rode Lijst van het IUCN (Ref. 123251)

  Niet beoordeeld 

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

  Harmless





Gebruik door de mens

Visserij: visserij voor eigen gebruik; vis voor de hengelsport: ja
FAO(Publication : search) | FishSource |

Meer informatie

Landen
FAO regio's
Ecosystems
Voorkomen
Introducties
Stocks
Ecologie
Dieet
voedselitems
Voedselconsumptie
voedselhoeveelheid
Populaire namen
Synoniemen
Metabolisme
Predators
Ecotoxicologie
Voortplanting
Geslachtsrijpheid
Kuitschieten
Spawning aggregation
Fecundity
Eieren
Ontwikkeling van de eieren
Leeftijd/Grootte
Groei
Lengte-gewicht parameters
Lengte-lengte parameters
Lengtefrequenties
Morfometrie
Morfologie
Larven
Populatiedynamica van de larven
recrutering
Abundantie
Referenties
Aquacultuur
Aquacultuurprofiel
Kweeklijnen
Genetica
Alleelfrequenties
Erfelijkheid
Ziekten
Verwerking
Mass conversion
Medewerkers
Illustraties
Stamps, Coins Misc.
Geluid
Ciguatera
Snelheid
Zwemstijl
Kieuwoppervlak
Otoliths
Hersenen
Zicht

Tools

E-book | Veldgids | Hulp bij lengteverdeling | Berekening van life-history parameters | Verspreidingskaart | Classification Tree | Catch-MSY |

Speciale rapporten

Bekijk gegevens voor het houden in een aquarium | Bekijk algemene soortsgegevens | Bekijk gegevens voor aquacultuur

Download XML

Overzichtspagina | Point data | Populaire namen | Foto's

Internet-bronnen

Aquatic Commons | BHL | Cloffa | Websites from users | Bekijk FishWatcher gegevens | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genoom, nucleotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Tree of Life | Wikipedia(ga naar, zoek) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00537 (0.00266 - 0.01086), b=3.22 (3.05 - 3.39), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.5   ±0.43 se; based on food items.
Weerstandsvermogen (Ref. 120179):  Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (tm=3-5).
Kwetsbaarheid (Ref. 59153):  Moderate to high vulnerability (54 of 100) .
Prijsklasse (Ref. 80766):   Very high.