Actinopterygii (Straalvinnigen) >
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
Ecologie
; zoetwater demersaal; potamodroom (Ref. 51243). Subtropical; 44°N - 30°N
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 / Leeftijd
Maturity: Lm ?  range ? - ? cm
Max length : 200 cm TL mannelijk/geslacht niet bekend; (Ref. 58490); common length : 81.7 cm TL mannelijk/geslacht niet bekend; (Ref. 12193); Maximaal gepubliceerd gewicht: 130.0 kg (Ref. 52332); Maximaal vermelde leeftijd: 41 jaren (Ref. 32514)
Korte beschrijving
Morfologie | Morfometrie
Absence of scalelike scutes on belly; bases of outer barbels usually behind bases of inner barbels (Ref. 86798).
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.
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)
Status op de Rode Lijst van het IUCN (Ref. 123251)
Gevaarlijk voor mensen
Harmless
Gebruik door de mens
Meer informatie
ReferentiesAquacultuurAquacultuurprofielKweeklijnenGeneticaAlleelfrequentiesErfelijkheidZiektenVerwerkingMass conversion
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Estimates based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00398 (0.00145 - 0.01094), b=3.16 (2.93 - 3.39), 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.
Weerstandsvermogen (Ref.
120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (tm=5-15; Fec=170,000, tmax=41(based on 1 specimen only)).
Kwetsbaarheid (Ref.
59153): High to very high vulnerability (67 of 100) .