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Teleostei (teleosts) > Cypriniformes (Carps) > Catostomidae (Suckers) > Catostominae
Etymology: Catostomus: Greek, kata = down + Greek, stoma = mouth (Ref. 45335).
More on author: Cope.

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

Freshwater; demersal. Temperate; 44°N - 35°N

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

North America: Snake River system (Columbia River drainage), Wyoming, and Idaho; Lake Bonneville basin, Idaho, Wyoming and Utah; south through upper Colorado river drainage (Grand Canyon and above), Wyoming, Colorado, Utah, New Mexico and Arizona in the USA. Two subspecies were recognized: Catostomus discobolus discobolus and Catostomus discobolus jarrovii.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 41.0 cm TL male/unsexed; (Ref. 86798)

Short description Identification keys | Morphology | Morphometrics

Blue head (darkest on adult; no blue in Little Colorado River, Arizona population), slender caudal peduncle, predorsal scales usually 50 or more, and 78-122 scales on lateral line (Ref. 86798).

Inhabits rocky riffles and runs of small to large rivers (Ref. 5723, 86798).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

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. 130435: Version 2024-2)

Least Concern (LC) ; Date assessed: 26 October 2011

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
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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=0.00525 (0.00220 - 0.01254), b=3.09 (2.88 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 2.8 ±0.2 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Low, minimum population doubling time 4.5 - 14 years (K=0.089-0.32).

Fishing Vulnerability (Ref. 59153): Low to moderate vulnerability (33 of 100).

Catostomus discobolus Cope, 1871