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Catostomus commersonii  (Lacepède, 1803)

White sucker
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Image of Catostomus commersonii (White sucker)
Catostomus commersonii
Picture by Seelig, C.

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 Ecology

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)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

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.

Biology     Glossary (e.g. epibenthic)

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).

Main reference Upload your references | References | Coordinator | Collaborators

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)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: minor commercial; aquaculture: commercial; gamefish: yes; bait: occasionally
FAO(Publication : search) | FisheriesWiki | Sea Around Us

More information

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 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) .
Price category (Ref. 80766):   Unknown.