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Cypriniformes (Carps) >
Leuciscidae (Minnows) > Laviniinae
Etymology: Gila: A river flowing from SW Mejico to south Arizona.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten bentopelagisk; flodvandrande (Ref. 51243). Temperate; 42°N - 36°N
North America: upper Colorado River drainage in Wyoming, Colorado, Utah and Arizona, USA.
Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Max length : 38.0 cm TL hane/ej könsbestämd; (Ref. 5723); common length : 25.0 cm TL hane/ej könsbestämd; (Ref. 12193)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Body deep and compressed; caudal peduncle long, extremely slender; fins falcate; caudal fin large, forked; angle along anal fin base continues along upper edge of caudal fin. Large-sized individuals possess large, nearly scaleless hump behind small, depressed head; mouth subterminal, extending to front of small eye; 73-90 scales on lateral line; usually 9 dorsal rays; 10 anal rays; pharyngeal teeth 2,5-4.2. Dark olive-gray above, silver side (Ref. 86798).
Inhabits swift, rocky runs and flowing pools. The hump at the back of the head directs fish to maintain position in the swift water (Ref. 86798).
Life cycle and mating behavior
Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver
Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01148 (0.00455 - 0.02896), b=3.03 (2.81 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 2.0 ±0.2 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (K=0.15-0.22).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (50 of 100).