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); effusus: effusus refers to the proliferation of tubercles over the head and body (Ref. 10294). More on authors: Lachner & Jenkins.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Temperate; 38°N - 36°N
North America: upper Green, upper Barren, Cumberland (in Little South Fork and downstream), Duck and lower Tennessee (between Cumberland and Duck Rivers) river drainages in Kentucky and Tennessee, USA.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 23.0 cm TL male/unsexed; (Ref. 86798); common length : 14.0 cm TL male/unsexed; (Ref. 12193)
Inhabits clear rocky runs and pools of creeks and small rivers (Ref. 5723). Also found in small, clear upland streams with predominantly gravel substrates (Ref. 10294).
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. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00912 (0.00398 - 0.02092), b=3.06 (2.86 - 3.26), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.1 ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (31 of 100) .