Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal; potamodromous (Ref. 94077). Temperate; 43°N - 42°N
North America: endemic to upper Klamath River Basin, including the Lost River in Oregon and Lower Klamath Lake sub-basins and Clear Lake Reservoir (Modoc Country) in California, USA.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 86.0 cm TL male/unsexed; (Ref. 5723); common length : 55.0 cm TL male/unsexed; (Ref. 12193); max. published weight: 4.5 kg (Ref. 94077); max. reported age: 57 years (Ref. 94077)
Found in lakes, impoundments and deep pools of small to medium rivers.
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. 130435: Version 2025-2 (Global))
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
Special reports
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref. 82804) |
PD50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00537 (0.00232 - 0.01243), b=3.05 (2.84 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trophic level (Ref. 69278) |
3.1 ±0.4 se; based on size and trophs of closest relatives |
Resilience (Ref. 120179) |
Low, minimum population doubling time 4.5 - 14 years (tmax=57; tm=4-9; Fec=44,000-236,000). |
Fishing Vulnerability (Ref. 59153) |
High vulnerability (63 of 100). 🛈 |