Actinopteri (ray-finned fishes) > Cypriniformes
(Carps) > Leuciscidae
(Minnows) > Laviniinae
Etymology: Hesperoleucus: Greek, hesperos = the land of the west + Greek, leukos = white (Ref. 45335). More on authors: Baird & Girard.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Temperate; 43°N - 35°N
North America: Sacramento-San Joaquin, Russian, Pajaro-Salinas and smaller coastal drainages in California, USA.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 11.0 cm TL male/unsexed; (Ref. 5723); common length : 8.3 cm TL male/unsexed; (Ref. 12193); max. reported age: 5 years (Ref. 72464)
(total): 7-10. Mouth slightly subterminal; body deep, compressed, tapering to narrow caudal peduncle; dorsal-fin origin behind pelvic-fin origin; caudal fin large; scales on lateral line 47-63; dorsal fin with 7-10 rays; pharyngeal teeth 0,5-4,0; dusky gray to steel blue above; dark stripe along side; silver white below; and breeding individuals with red orange-chin, gill cover, and anal and paired-fin bases (Ref. 86798).
Inhabits rocky pools of headwaters, creeks and small to medium rivers (Ref. 86798).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00445 - 0.02830), 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
): 2.4 ±0.2 se; based on size and trophs of closest relatives
Generation time: 2.0 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (K=0.5).
Vulnerability (Ref. 59153
): Low vulnerability (24 of 100) .