Actinopteri (ray-finned fishes) > Cypriniformes
(Carps) > Catostomidae
(Suckers) > Catostominae
Etymology: Moxostoma: Greek, myxo = to suckle + Greek, stoma = mouth (Ref. 45335); macrolepidotum: macrolepidotum, meaning large scaled (Ref. 10294). More on author: Lesueur.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; brackish; demersal. Temperate; 59°N - 33°N
North America: Great Lakes-St. Lawrence River, Hudson Bay and Mississippi River basins from Quebec to Alberta in Canada and south to northern Alabama and Oklahoma in the USA; Atlantic Slope drainages from Hudson River in New York to Santee River in South Carolina, USA.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 75.0 cm TL male/unsexed; (Ref. 5723); common length : 40.8 cm TL male/unsexed; (Ref. 12193); max. published weight: 4.0 kg (Ref. 40637); max. reported age: 9 years (Ref. 12193)
Inhabit rocky pools, runs and riffles in small to large rivers. Also occur in lakes (Ref. 5723, 10294). Adults feed on benthic insect larvae; juveniles consume microcrustacea and midge larvae (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
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=0.01072 (0.00518 - 0.02216), b=2.97 (2.79 - 3.15), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.1 ±0.41 se; based on food items.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (tmax=9).
Vulnerability (Ref. 59153
): High vulnerability (56 of 100) .