Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal. Temperate; 43°N - 40°N
North America: Klamath River drainage in Oregon and California, USA; Pit River system from Fall River to Hat Creek in California.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 9.0 cm TL male/unsexed; (Ref. 5723); common length : 6.0 cm TL male/unsexed; (Ref. 12193); max. reported age: 5 years (Ref. 6083)
Inhabits soft-bottomed runs of clear, cold creeks and small to medium rivers.
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | 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. 130435)
Threat to humans
Harmless
Human uses
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Special reports
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00300 - 0.01523), b=3.17 (2.98 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Generation time: 3.9 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (tmax=5; k=0.28).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (34 of 100).