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Erimystax insignis  (Hubbs & Crowe, 1956)

Blotched chub
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Image of Erimystax insignis (Blotched chub)
Erimystax insignis
Picture by N. Burkhead & R. Jenkins, courtesy of VDGIF

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: Erimystax: Greek, eri = aumentative prefix, a lot + Greek, mystax = moustache (Ref. 45335);  insignis: From the words eri, an intensifying prefix; stigma, spot; and insignis, meaning remarkable (referring to the distinct pigment pattern) (Ref. 10294).

Environment / Climate / Range Ecology

Freshwater; demersal.   Temperate; 38°N - 34°N

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 10.0 cm TL male/unsexed; (Ref. 10294); common length : 6.1 cm TL male/unsexed; (Ref. 12193)

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

North America: Cumberland and Tennessee River drainages in Virginia, North Carolina, Kentucky, Tennessee, Georgia and Alabama, USA.

Biology     Glossary (e.g. epibenthic)

Inhabits rocky riffles and runs of clear small to medium rivers (Ref. 5723, 10294); also found in moderate-sized creeks. Feeds on periphyton and aquatic insect larvae dominated by dipterans (midges and blackflies) and mayflies (Baetidae and Potamanthus) (Ref. 10294).

Main reference Upload your references | References | Coordinator | Collaborators

Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott, 1991. Common and scientific names of fishes from the United States and Canada. Am. Fish. Soc. Spec. Pub. (20):183 p.

IUCN Red List Status (Ref. 90363)

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki | Sea Around Us

More information

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Internet sources

Alien/Invasive Species database | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on empirical models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5312   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01020 (0.00461 - 0.02257), b=3.07 (1.93 - 4.89), based on LWR estimates for this Subfamily-BS (Ref. 93245).
Trophic Level (Ref. 69278):  2.9   ±0.3 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low vulnerability (20 of 100) .
Price category (Ref. 80766):   Unknown.