United States (contiguous states) country information

Common names: Cowhead Lake tui chub, Tui chub
Occurrence: native
Salinity: freshwater
Abundance: common (usually seen) | Ref: Page, L.M. and B.M. Burr, 2011
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from the Columbia River drainage in Washington, Oregon and Idaho, south in Klamath and upper Pit River (Sacramento River drainage) and interior drainages of Nevada and California to Mohave River in south California. Locally abundant but declining in some areas because of habitat degradation and introduced species (Ref. 5723, 86798). Status of threat of the following subspecies: 1). Gila bicolor euchila: endangered; status declined since 1989. Criteria: 1,4,5; 2). Gila bicolor eurysoma: endangered; status declined since 1989. Criteria: 1,5; 3). Gila bicolor isolata: endangered; status improved since 1989. Criteria: 1,4,5; 4). Gila bicolor mohavensis: endangered; status same as 1989. Criteria: 1,4,5; 5). Gila bicolor newarkensis: threatened; status declined since 1989. Criteria: 1,5; 6). Gila bicolor oregonensis: threatened; status declined since 1989. Criteria: 5; 7). Gila bicolor snyderi: endangered; status same as 1989. Criteria: 1,4,5; 8). Gila bicolor thalassina: threatened. Criteria: 1,4, 5; 9). Gila bicolor vaccaceps: endangered; status declined since 1989. Criteria: 1,5 (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

Gila dvojbarvá, 双色骨尾鱼, Tui-lätteturbik, ... more

Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes(Género, Espécies) | ITIS | CoL | WoRMS | Cloffa

> Cypriniformes (Carps) > Leuciscidae (Minnows) > Laviniinae
Etymology: bicolor: Name from the Latin word 'vacca' meaning cow and 'ceps' meaning head, for the type locality; noun in apposition (Ref. 56397).
More on author: Girard.

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

; Água doce bentopelágico. Temperate; 44°N - 35°N

Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

North America: Columbia River drainage in Washington, Oregon and Idaho, south in Klamath and upper Pit River (Sacramento River drainage) and interior drainages of Nevada and California to Mohave River in south California, USA. Distinctive subspecies were recognized: Gila bicolor snyderi (protected) in Owens River, California; Gila bicolor mohavensis (protected) in Mojave River, California; Gila bicolor bicolor in Klamath River system in Oregon and California; Gila bicolor obesa, a stream and spring-inhabiting form; and G. bicolor pectinifer, a lake-inhabiting form, both in Lake Lahontan basin in Nevada.

Tamanho / Peso / Idade

Maturity: L_m ? range ? - ? cm
Max length : 45.0 cm TL macho/indeterminado; (Ref. 86798)

Descrição breve Morfologia | Morfometria

Raios dorsais moles (total): 8; Raios anais moles: 7 - 8. Siphateles bicolor can be distinguished by the following characters: lateral line with 41-64 scales; dorsal fin usually with 8 rays; anal fin with 7-8 rays; pharyngeal teeth 0,5-5,0; deep, compressed body; dorsal-fin origin over pelvic- fin origin; fairly deep caudal peduncle; small, rounded fins; small, terminal to slightly subterminal mouth; does not extend to eye; dusky olive to dark green above; brassy brown side, often mottled in adult; silver white to yellow below; clear to dusky olive fins; young with dusky stripe along side; large individuals may have yellow to copper fins with pink, red, or orange bases, red-orange lower side (Ref. 86798).

Inhabits lakes and quiet, vegetated, mud or sand-bottomed pools of headwaters, creeks and small to large rivers (Ref. 86798).

Life cycle and mating behavior Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas

Referência principal Upload your references | Referências | Coordenador | Colaboradores

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)

Categoria na Lista Vermelha da IUCN (Ref. 130435)

Preocupação menor (LC) ; Date assessed: 07 February 2012

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

Harmless

Utilização humana

FAO(Publication : search) | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01202 (0.00492 - 0.02938), b=3.03 (2.81 - 3.25), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

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

Resiliência (Ref. 120179): Médio, tempo mínimo de duplicação da população 1,4 - 4,4 anos (K=0.19-0.33).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (49 of 100).

Siphateles bicolor (Girard, 1856)