Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Cypriniformes
(Carps) > Catostomidae
(Suckers) > Catostominae
Etymology: Catostomus: Greek, kata = down + Greek, stoma = mouth (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Temperate; 54°N - 38°N
North America: Canada and USA from Saskatchewan River system and Fraser River drainage south through upper Missouri and Colorado River drainages to Colorado and Utah; Lahontan basin in the USA; upper Sacramento River system in California and through Oregon and Washington to southern British Columbia.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 11 - ? cm
Max length : 25.0 cm TL male/unsexed; (Ref. 5723); common length : 11.3 cm TL male/unsexed; (Ref. 12193); max. reported age: 9 years (Ref. 12193)
Occurs in various habitats, but most common in rocky riffles and runs of clear mountain creeks and small to medium rivers. Rarely found in lakes (Ref. 1998). Feeds on diatoms, other algae, higher plants, dipterous larvae and pupae (Ref. 1998). Spawning adults may be preyed upon by birds and mammals while small individuals may be preyed upon by stream salmonids (Ref. 1998). Edible.
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. 115185)
CITES (Ref. 115941)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00617 (0.00308 - 0.01235), b=3.09 (2.90 - 3.28), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic Level (Ref. 69278
): 2.3 ±0.18 se; Based on food items.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (tm=2-5).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (34 of 100) .