Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water demersaal. Temperate; 38°N - 32°N
North America: Colorado River drainage from southwestern Wyoming to southern Arizona in the USA.
Grootte / Gewicht / Leeftijd
Maturity: Lm ?  range ? - ? cm
Max length : 56.0 cm TL mannelijk / geslacht onbekend; (Ref. 5723); common length : 35.0 cm TL mannelijk / geslacht onbekend; (Ref. 12193); max. gepubliceerd gewicht: 920.00 g (Ref. 4699)
Adults inhabit rocky pools, runs and riffles of medium to large rivers. Less often found in creeks and small rivers.
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
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. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Sportvis: ja
Tools
Speciale rapporten
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01175 (0.00560 - 0.02463), b=2.99 (2.81 - 3.17), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 2.8 ±0.2 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (K=0.38-0.46).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (33 of 100).