Scaphirhynchus albus, Pallid sturgeon

Scaphirhynchus albus (Forbes & Richardson, 1905)

Pallid sturgeon
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Scaphirhynchus albus
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Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

> Acipenseriformes (Sturgeons and paddlefishes) > Acipenseridae (Sturgeons) > Scaphirhynchinae
Etymology: Scaphirhynchus: Greek, skaphe, -eos = boat + Greek, rhyngchos = snout (Ref. 45335);  albus: From the word albus, meaning white (Ref. 10294).

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

; süßwasser demersal; potamodrom (Ref. 51243).   Subtropical; 44°N - 30°N

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

North America: nearly restricted to main channels of Missouri River and lower Mississippi River from Montana to Louisiana in USA. International trade restricted (CITES II, since 1.4.98).

Length at first maturity / Size / Gewicht / Alter

Maturity: Lm ?  range ? - ? cm
Max length : 200 cm TL Männchen/unbestimmt; (Ref. 58490); common length : 81.7 cm TL Männchen/unbestimmt; (Ref. 12193); max. veröff. Gewicht: 130.0 kg (Ref. 52332); max. veröff. Alter: 41 Jahre (Ref. 32514)

Kurzbeschreibung Morphologie | Morphometrie

Absence of scalelike scutes on belly; bases of outer barbels usually behind bases of inner barbels (Ref. 86798).

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Adults inhabit large, deep, turbid river channels, usually in strong current over firm sand or gravel (Ref. 10294, 58490). They feed on aquatic insect immatures, particularly caddisfly larvae, and small fish (Ref. 10294). Threatened due to over harvesting and habitat loss (Ref. 58490). No length type given but assumed to be in TL.

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Hauptreferenz Upload your references | Referenzen | Koordinator | Partner

Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott, 1991. Common and scientific names of fishes from the United States and Canada. Am. Fish. Soc. Spec. Publ. (20):183 p. (Ref. 3814)

IUCN Rote Liste Status (Ref. 123251)

  stark gefährdet (EN) (A4ce); Date assessed: 30 April 2004

CITES (Ref. 123416)


CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless





Nutzung durch Menschen

FAO - Fischereien: Artbeschreibung; Publication: search | FishSource |

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Internet Quellen

Aquatic Commons | BHL | Cloffa | Websites from users | FishWatcher Einträge suchen | CISTI | Catalog of Fishes: Gattung, Arten | DiscoverLife | ECOTOX | FAO - Fischereien: Artbeschreibung; Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: Genom, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Gehe zu, Suchen | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00407 (0.00148 - 0.01125), b=3.16 (2.92 - 3.40), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.9   ±0.63 se; based on food items.
Generation time: 16.8 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Widerstandsfähigkeit (Ref. 120179):  niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (tm=5-15; Fec=170,000, tmax=41(based on 1 specimen only)).
Verwundbarkeit (Ref. 59153):  High to very high vulnerability (67 of 100) .