Species: Acrocheilus alutaceus
Chiselmouth
Species
Encyclopedia of Puget Sound
Classification
Kingdom
Animalia
Phylum
Craniata
Class
Actinopterygii
Order
Cypriniformes
Family
Cyprinidae
Genus
Acrocheilus
NatureServe
Classification
Other Global Common Names
bouche coupante
Informal Taxonomy
Animals, Vertebrates - Fishes - Bony Fishes - Minnows and Carps
Formal Taxonomy
Animalia - Craniata - Actinopterygii - Cypriniformes - Cyprinidae - Acrocheilus - May hybridize with PTYCHOCHEILUS OREGONENSIS (Lee et al. 1980).
Ecology and Life History
Short General Description
a small fish; a minnow
Habitat Type Description
Freshwater
Migration
true - true - false - Lake populations migrate to tributaries to spawn.
Non-migrant
true
Locally Migrant
true
Food Comments
Young feed mainly on aquatic and terrestrial insects. Adults feed largely on diatoms that they ingest while scraping their specialized, chisel-like lower jaw along rocks or other substrate (Scott and Crossman 1973).
Reproduction Comments
In British Columbia, spawning occurs usually in late June-early July when water temperatures reach about 62.5 F or higher. Mean egg count for 6 females in Wolfe Lake, British Columbia, was 6200. Males probably mature at age 3, most females at 4. Individuals may live up to about 6 years.
Length
20
Conservation Status
NatureServe Global Status Rank
G5
Global Status Last Reviewed
1996-09-13
Global Status Last Changed
1996-09-13
Other Status
NAR - Not at Risk - 2003-05-01
Distribution
Conservation Status Map
<img src="http://www.natureserve.org/explorer/servlet/GetMapGif?CA.BC=S3&US.ID=S5&US.NV=S3&US.OR=S4&US.WA=S4" alt="Conservation Status Map" style="width: 475px; height: auto;" />
Global Range
G - 200,000-2,500,000 square km (about 80,000-1,000,000 square miles) - G - Range includes the Columbia and Fraser river systems in British Columbia, Washington, Oregon, Idaho, and Nevada; also the Harney River basin in the Malheur Lake drainage of central Oregon (Page and Burr 2011).
Global Range Code
G
Global Range Description
200,000-2,500,000 square km (about 80,000-1,000,000 square miles)