Acrocheilus alutaceus Agassiz & Pickering, 1855

Chiselmouth

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Cypriniformes \| Cyprinidae
Synonyms	Lavinia alutacea, ... more
Common names	美洲锐唇鲷, Dlátovka americká, Hardmouth, ... more

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Image of Acrocheilus alutaceus (Chiselmouth)

Picture by Moodie, G.E.E.

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Main reference

Page, L.M. and B.M. Burr. 1991. (Ref. 5723)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 30.0 cm TL male/unsexed; (Ref. 5723); common length : 17.5 cm TL male/unsexed; (Ref. 12193)

Environment

Demersal; freshwater

Climate / Range

Temperate; 55°N - 41°N

North America: Fraser and Columbia River drainages in British Columbia in Canada, Washington, Idaho, Oregon, and Nevada, USA; Harney River basin in Oregon, USA.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Description: elongated, slightly compressed body. Caudal peduncle narrow. Tail large and flaring. Lower jaw bears a sharp edge, nearly square when viewed from beneath. Sharp part of lip consist of cornified epithelium which is sometimes slightly calcified. Internal to the fleshy upper lip is a small, hard plate upon which the lower lip bears. Young fish have a more rounded lower lip, when viewed either laterally or from below. Digestive tract in adults is about twice the length of the body, with most of its length consisting of a coiled section posterior to the entry of the bile duct. The lining of the body cavity is jet black.

Inhabits flowing pools and runs over sand and gravel in creeks and small to medium rivers; also in margins of lakes. Adults feed mainly on diatoms, also on filamentous algae; young feed on surface insects (Ref. 1998).


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

Human uses
Fisheries: minor commercial


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Medium, minimum population doubling time 1.4 - 4.4 years (tm=3-4)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Moderate vulnerability (44 of 100)	Not marketed/unknown

Entered by Froese, Rainer

Modified by Bailly, Nicolas

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Page last modified by : elaxamana, 15 July 2009

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