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Gila robusta Baird & Girard, 1853

Roundtail chub
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Gila robusta
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United States (contiguous states) country information

Common names: Roundtail chub, White river chub
Occurrence: native
Salinity: freshwater
Abundance: common (usually seen) | Ref: Page, L.M. and B.M. Burr, 1991
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from Colorado River drainage in Wyoming, Colorado, Utah, New Mexico and Arizona (Ref. 86798). Four subspecies were previously recognized: G. r. jordani in Pluvial White River, Nevada; G. r. seminuda in Virgin River in Utah, Nevada and Arizona; G r. grahami in Gila River in New Mexico and Arizona; G. r. robusta in rest of of USA range (Ref. 5723). The population in White River , Nevada is protected as Gila robusta jordani, an endangered subspecies (Ref. 86798). Status of threat: vulnerable. Criteria: 1,3 (http://fisc.er.usgs.gov/afs/). Gila robusta jordani: endangered; status same as 1989. Criteria: 1,4,5 (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

粗壮骨尾鱼, Gila nevadská, Jäme gilaturb, ... more

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | 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 Ecologie

; zoet water benthopelagisch.   Subtropical; 44°N - 28°N

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North America: Colorado River drainage in Wyoming, Colorado, Utah, New Mexico and Arizona, USA (Ref. 86798); also Rio Yaqui south to Rio Piaxtla in northwestern Mexico (Ref. 5723).

Grootte / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 43.0 cm TL mannelijk / geslacht onbekend; (Ref. 5723); common length : 30.0 cm TL mannelijk / geslacht onbekend; (Ref. 12193); max. gerapporteerde leeftijd: 8 Jaren (Ref. 12193)

Korte beschrijving Morfologie | Morfometrie

Dorsale zachte stralen (totaal): 9; Anale zachte stralen: 9. Body deep and compressed. Head flat. Caudal peduncle slender. Caudal fin large and forked. Angle along base of the anal fin continues into the middle of the caudal fin. Mouth terminal, extending to front of eye. Dark olive-gray above, silver side. Breeding male may develop red or orange on lower half of cheek and paired-fin bases; Lateral line with 71-99 scales, usually more than 78. Dorsal and anal fins with 9 rays. First gill arch with 10 or more rakers. Pharyngeal teeth 2,5-4,2 (Ref. 86798).

Biologie     Verklarende woordenlijst (bv. epibenthic)

Inhabits rocky runs, sometimes pools, of creeks and small to large rivers as well as impoundments. May hybridize with Gila cypha throughout their shared range except in Yampa River (Ref. 86798).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Kwetsbaar, zie IUCN Rode Lijst (VU) (A2ce); Date assessed: 07 November 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless




Gebruik door de mens

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Estimates based on models

Fylogenetische diversiteitsindex (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).
Trofisch niveau (Ref. 69278):  2.0   ±0.2 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref. 120179):  Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (tmax=8).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (33 of 100).