Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Temperate; 40°N - 37°N
North America: Lahontan basin in southeastern Oregon, Nevada and northeastern California, USA. Recently established naturally or through introduction into upper Sacramento River system in California.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 61.0 cm TL male/unsexed; (Ref. 5723); common length : 27.5 cm TL male/unsexed; (Ref. 12193); max. reported age: 15 years (Ref. 12193)
Occurs in various habitats but most common in large lakes such as Lake Tahoe and Pyramid Lake in Nevada, USA. Also found in pools along lower reaches of streams.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)
IUCN Red List Status (Ref. 126983)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00501 (0.00206 - 0.01219), b=3.10 (2.88 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±0.2 se; based on diet studies.
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (tmax=15).
Fishing Vulnerability (Ref. 59153
): Moderate vulnerability (44 of 100).