Actinopteri (ray-finned fishes) > Cypriniformes
(Carps) > Catostomidae
(Suckers) > Catostominae
Etymology: Moxostoma: Greek, myxo = to suckle + Greek, stoma = mouth (Ref. 45335); carinatum: From the word carinatum, meaning keeled (Ref. 10294). More on author: Cope.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Temperate; 47°N - 31°N
North America: St. Lawrence River-Great Lakes and Mississippi River basins from southern Quebec in Canada to central Minnesota and western Iowa in USA, and south to northern Alabama and eastern Oklahoma, USA; Gulf Slope drainages from Escambia River in Florida to Pearl River in Louisiana and Mississippi, USA.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 77.0 cm TL male/unsexed; (Ref. 5723); common length : 48.0 cm TL male/unsexed; (Ref. 12193); max. published weight: 4.0 kg (Ref. 40637); max. reported age: 12 years (Ref. 12193)
Inhabits rocky pools and swift runs of small to large rivers. Also occurs in impoundments (Ref. 5723, 10294). Locally common but disappearing from northern and western parts of range (Ref. 5723). Adult feeds on small bivalve mollusks (Ref. 10294).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00539 - 0.01856), b=2.95 (2.79 - 3.11), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.6 ±0.50 se; based on food items.
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (tmax=12).
Vulnerability (Ref. 59153
): High to very high vulnerability (65 of 100) .