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Cottus hypselurus Robins & Robison, 1985

Ozark sculpin
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Cottus hypselurus
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United States (contiguous states) country information

Common names: Ozark sculpin
Occurrence: endemic
Salinity: freshwater
Abundance: abundant (always seen in some numbers) | Ref: Page, L.M. and B.M. Burr, 1991
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Type locality of Cottus hypselurus, Spenser Creek, a tributary of the Niangua River at Bennett's Springs, 11 miles NW of Lebanon, Laclede Co., Missouri. It is abundant throughout its range and not in need of protective measures (Ref. 121014). Endemic to cool and cold streams of teh Ozark Highlands in Missouri and Arkansas and it belongs to the Osage-Black clade which is known from the Osage, Gasconade and Black river drainages (Ref. 83416).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/us.html
National Fisheries Authority: http://www.nmfs.gov
Occurrences: Occurrences Point map
Main Ref: Robins, C.R. and H.W. Robison, 1985
National Database:

Common names from other countries

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Perciformes/Cottoidei (Sculpins) > Cottidae (Sculpins)
Etymology: Cottus: Greek, kottos = a fish (Ref. 45335);  hypselurus: Name from Greek 'hypselos' meaning 'high' and 'oura' for tail; referring to the depth of the posterior part of the body; treated as an adjective..
  More on authors: Robins & Robison.

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; demersal.   Temperate; 39°N - 36°N

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

North America: USA (Osage, Black, and Gasconade drainages).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 8.5 cm SL male/unsexed; (Ref. 83416)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 6 - 8; Dorsal soft rays (total): 16 - 19; Anal soft rays: 12 - 15. This species is distinguished by the following characters: D VI-VII (96% of specimens); pectoral fin rays usually 13-15; caudal-base band may be notched or non-notched; lateral line pores modally 23; pigmentation of the ventral surface of the peritoneum moderate to strong; dorsal-fin union slight to moderate; blue chin and belly on spawning males (shared with C. immaculatus and C. caeruleomentum) (Ref. 83416).

Biology     Glossary (e.g. epibenthic)

This species prefers cool clear brooks and moderate to large streams and rivers usually with rapid flow and gravelly or rocky bottoms. Within these environment, it typically occurs in shallow, gravel-bottomed riffles or shoal regions with strong current. It is reported to often occur in thick growths of watercress (Nasturtium officina. Little is known of its biology. Feeds also on crayfish (Orconectes); larvae of Trichoptera (Hydropsychidae), Plecoptera, Ephemeroptera, Diptera (Chironomus, Simulium), gastropods, elmid beetles and miscellaneous animal material, including other individuals of C. hypselurus (Ref. 121014).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Robins, C.R. and H.W. Robison, 1985. Cottus hypselurus, a new cottid fish from the Ozark Uplands, Arkansas and Missouri. American Midland Naturalist, 114(2):360-373. (Ref. 121014)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 11 November 2011

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FishSource |

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Internet sources

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes(genus, species) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00300 - 0.01523), b=3.17 (2.98 - 3.36), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.3   ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).