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); commersonii: Named after P. Commerson, early french naturalist.
Environment / Climate / Range
Freshwater; demersal; catadromous (Ref. 51243), usually ? - 30 m (Ref. 1998). Temperate; ? - 29°C (Ref. 35682); 68°N - 34°N
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 23 - ? cm
Max length : 65.0 cm TL male/unsexed; (Ref. 10294); common length : 40.7 cm TL male/unsexed; (Ref. 12193); max. published weight: 2.9 kg (Ref. 4699); max. reported age: 12 years (Ref. 12193)
North America: throughout most of Canada to the Atlantic Coast, south through North Carolina to New Mexico in the USA, becoming less common in the southern High Plains.
Inhabits a wide range of habitats, from rocky pools and riffles of headwaters to large lakes. Usually occurs in small, clear, cool creeks and small to medium rivers. May be found at a depth greater than 45 m (Ref. 1998). Moves to shallower water near sunrise and sunset to feed. Fry (1.2 cm in length) feed on plankton and other small invertebrates; bottom feeding commences upon reaching a length of 1.6-1.8 cm. Preyed upon by birds, fishes, lamprey, and mammals (Ref. 1998). Flesh is white, flaky, and sweet (Ref. 1998).
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. 90363)
CITES (Ref. 94142)
Threat to humans
Fisheries: minor commercial; aquaculture: commercial; gamefish: yes; bait: occasionally
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=0.01259 (0.00965 - 0.01643), b=2.99 (2.91 - 3.07), based on LWR estimates for this species (Ref. 93245
Trophic Level (Ref. 69278
): 2.8 ±0.4 se; Based on diet studies.
Resilience (Ref. 69278
): Low, minimum population doubling time 4.5 - 14 years (tm=6; tmax=12).
Vulnerability (Ref. 59153
): High vulnerability (57 of 100) .