Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Cypriniformes
(Carps) > Cyprinidae
(Minnows or carps) > Leuciscinae
Etymology: Nocomis: An Indian (North America) name used by Charles Girard; ojibwe, nokomiss = grandmother (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Temperate; 53°N - 36°N
North America: Mohawk River system in New York, USA west through Great Lakes and Mississippi River basin to Red River drainage (Hudson Bay basin) in Manitoba, Canada and North Dakota, USA, and south to Ohio River drainage; Ozark drainages in Missouri and Arkansas, USA. Isolated populations in lower Kentucky River system in Kentucky, Platte and Cheyenne River systems in Nebraska, Wyoming, and Colorado, and Kansas River in Kansas, USA.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 26.0 cm TL male/unsexed; (Ref. 86798); common length : 11.0 cm TL male/unsexed; (Ref. 12193); max. reported age: 4 years (Ref. 12193)
Caudal fin red (young) to yellow (adults); other fins yellow to orange; large male with bright red spot behind eye, female with brassy spot ); dark olive to brown above; iridescent green on yellow-brown side; white to light yellow below; dusky iridescent yellow stripe along back; yellow streak above dusky stripe along side and around snout; black caudal spot (all darkest on young); rounded snout; 38-45 scales on lateral line; usually 16-17 scales around caudal peduncle; pharyngeal teeth 1,4-4,1. Breeding male is pink below with pin-orange fins and has many large tubercles on top of head (Ref. 86798).
Inhabits rocky pools and runs of creeks and small to medium rivers (Ref. 86798).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00708 (0.00318 - 0.01574), b=3.08 (2.89 - 3.27), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.0 ±0.37 se; Based on food items.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (tmax=4; tm=3).
Vulnerability (Ref. 59153
): Moderate vulnerability (37 of 100) .