Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten bottenlevande. Temperate; 42°N - 39°N
North America: Pit and upper Sacramento River (above mouth of Pit River) systems in Oregon and California, USA.
Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Max length : 13.0 cm TL hane/ej könsbestämd; (Ref. 5723); common length : 7.0 cm TL hane/ej könsbestämd; (Ref. 12193); rapporterad maxålder: 5 år (Ref. 6083)
Inhabits rocky riffles of headwaters, creeks and small rivers.
Life cycle and mating behavior
Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver
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
Verktyg
Special reports
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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).
Trofisk nivå (Ref.
69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
Generation time: 5.8 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (tmax=5; k=0.19).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (40 of 100).