Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal; potamodromous (Ref. 126106). Temperate; 35°N - 31°N
North America: Gila and Bill Williams River systems (in Colorado River drainage) in New Mexico and Arizona, USA, and northern Sonora, Mexico. Common but decreasing in southern half of range.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 80.0 cm TL male/unsexed; (Ref. 5723)
Adults inhabit rocky pools of creeks and small to medium rivers. Large individuals occur in rocky riffles and runs at night.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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)
IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00537 (0.00232 - 0.01243), b=3.05 (2.84 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trophic level (Ref. 69278) |
2.8 ±0.2 se; based on size and trophs of closest relatives |
Resilience (Ref. 120179) |
Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.). |
Fishing Vulnerability (Ref. 59153) |
High vulnerability (60 of 100). 🛈 |
Nutrients (Ref. 124155) |
Calcium = 41 [19, 68] mg/100g; Iron = 0.45 [0.24, 0.80] mg/100g; Protein = 16.3 [14.0, 19.0] %; Omega3 = 0.809 [0.336, 1.839] g/100g; Selenium = 26.7 [10.8, 69.8] μg/100g; VitaminA = 18.7 [5.9, 59.2] μg/100g; Zinc = 0.784 [0.530, 1.194] mg/100g (wet weight); |