(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
Sinh thái học
; Nước ngọt Sống nổi và đáy. Temperate; 44°N - 35°N
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.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ?  range ? - ? cm
Max length : 45.0 cm TL con đực/không giới tính; (Ref. 86798)
Các vây lưng mềm (tổng cộng): 8; Tia mềm vây hậu môn: 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
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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. 123251)
CITES (Ref. 123416)
Threat to humans
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Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01202 (0.00488 - 0.02965), b=3.03 (2.81 - 3.25), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Mức dinh dưỡng (Ref. 69278
): 2.0 ±0.2 se; based on size and trophs of closest relatives
Generation time: 5.8 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Thích nghi nhanh (Ref. 120179
): Trung bình, thời gian nhân đôi của chủng quần tối thiểu là 1.4 - 4.4 năm (K=0.19-0.33).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (49 of 100) .