Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce démersal. Temperate; 44°N - 43°N
North America: Columbia River drainage in Idaho, Washington and Oregon, USA.
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 9.6 cm TL mâle / non sexé; (Ref. 5723); common length : 7.0 cm TL mâle / non sexé; (Ref. 12193); âge max. reporté: 6 années (Ref. 12193)
Occurs in quiet backwaters and pool margins of small to large rivers. Usually found near vegetation over sand.
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00575 (0.00275 - 0.01206), b=3.08 (2.88 - 3.28), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Niveau trophique (Ref.
69278): 3.3 ±0.4 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.
Résilience (Ref.
120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (tmax = 6; Fec = 5,370).
Fishing Vulnerability (Ref.
59153): Low vulnerability (24 of 100).