United States (contiguous states) country information

Common names: Bonytail
Occurrence: native
Salinity: freshwater
Abundance: scarce (very unlikely) | Ref: Page, L.M. and B.M. Burr, 1991
Importance: | Ref:
Aquaculture: experimental | Ref: Sowka, P.A. and P.E. Brunkow, 1999
Regulations: protected | Ref:
Uses: no uses
Comments: Extremely rare (Ref. 86798). Extant only in Green River, Utah and perhaps in some large impoundments of the Colorado River (Ref. 5723). Several factors contributed to the decline of bonytail populations in the Colorado River. These include habitat alteration produced by reservoir construction and predation by introduced species (Ref. 41720). Little recruitment has been observed for over 30 years (Ref. 41720). Also Ref. 3814. Status of threat: endangered; status same as 1989. Criteria: 1,3, 4 (http://fisc.er.usgs.gov/afs/) (Ref. 81264).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/us.html
National Fisheries Authority: http://www.nmfs.gov
Occurrences: Occurrences Point map
Main Ref: Page, L.M. and B.M. Burr, 2011
National Database:

Common names from other countries

Bonytail Chub, Carpa elegante, Gila zdobená, ... more

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

> Cypriniformes (Carps) > Leuciscidae (Minnows) > Laviniinae
Etymology: Gila: A river flowing from SW Mejico to south Arizona.
More on authors: Baird & Girard.

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

; süßwasser benthopelagisch; potamodrom (Ref. 51243). Temperate; 42°N - 32°N

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

North America: Colorado River drainage in Wyoming, Colorado, Utah, New Mexico, Arizona and California in USA; and Mexico.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 62.0 cm TL Männchen/unbestimmt; (Ref. 5723)

Kurzbeschreibung Morphologie | Morphometrie

Gila elegans can be distinguished from similar species Gila cypha by having terminal mouth, angle along anal fin base continues well above caudal fin, more slender caudal peduncle, smaller hump on nape, usually dorsal fin with 10 rays; and 75-99 scales on lateral line. Breeding males with red lower side and pectoral and anal-fin bases (Ref. 86798).

Inhabits flowing pools and backwaters, usually over mud or rock. Streamlined body may suggest occasional occurrence in swift runs (Ref. 86798).

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

Hauptreferenz Upload your references | Referenzen | Koordinator | Partner

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 Rote Liste Status (Ref. 130435)

vom Aussterben bedroht (CR) (B1ab(v)+2ab(v); C2a(i)); Date assessed: 08 February 2012

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

FAO(Publication : search) | FishSource |

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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].

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).

Trophic level (Ref. 69278): 2.0 ±0.2 se; based on size and trophs of closest relatives

Widerstandsfähigkeit (Ref. 120179): sehr niedrig, Verdopplung der Population dauert mehr als 14 Jahre. (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (45 of 100).

Gila elegans Baird & Girard, 1853