Species: Mylocheilus caurinus
Peamouth
Species
Encyclopedia of Puget Sound
Classification
Kingdom
Animalia
Phylum
Craniata
Class
Actinopterygii
Order
Cypriniformes
Family
Cyprinidae
Genus
Mylocheilus
NatureServe
Classification
Other Global Common Names
méné deux-barres
Informal Taxonomy
Animals, Vertebrates - Fishes - Bony Fishes - Minnows and Carps
Formal Taxonomy
Animalia - Craniata - Actinopterygii - Cypriniformes - Cyprinidae - Mylocheilus - First described as CYPRINUS (LEUCISCUS) CAURINUS. Weisel (1954, Copeia: 278-82; 1955, Am. Midl. Nat. 53:396-411; 1955, J. Morphol. 96:333-49) reported on hybridization (Lee et al. 1980). Hybrids between MYLOCHEILUS CAURINUS and RICHARDSONIUS BALTEATUS are common in Stave Lake, British Columbia (Aspinwall et al., 1993, Can. J. Zool. 71:83-90, 550-560). Hybridizes with PTYCHOCHEILUS OREGONENSIS.
Ecology and Life History
Habitat Type Description
Freshwater
Migration
false - true - false
Non-migrant
false
Locally Migrant
true
Food Comments
Primarily insectivorous. Feeds on a wide variety of aquatic insects and their larvae in addition to some terrestrial insects; also eats planktonic crustaceans, molluscs, and a few small fishes (Scott and Crossman 1973).
Reproduction Comments
Spawns May-June when water temperatures are 54-64 F. Females of 11-13" each produce 11000-16000 eggs. At 54 F eggs hatch in 7-8 days (Brown 1971). Sexually mature at age 3-4 years.
Ecology Comments
Lives in schools. May live 13 years or more and reach 14" in length (Wydoski and Whitney 1979). Predators include fish-eating birds and mammals.
Length
21
Conservation Status
NatureServe Global Status Rank
G5
Global Status Last Reviewed
1996-09-16
Global Status Last Changed
1996-09-16
Distribution
Conservation Status Map
<img src="http://www.natureserve.org/explorer/servlet/GetMapGif?CA.BC=S5&CA.NT=SU&US.ID=S5&US.MT=S5&US.OR=S4&US.WA=S5" alt="Conservation Status Map" style="width: 475px; height: auto;" />
Global Range
Columbia River drainage in northern Oregon, Idaho, Montana, and Washington; Nass (Pacific Slope) and Peace (Arctic basin) river systems in British Columbia; Vancouver Island and other islands off the coast of British Columbia; common, locally abundant (Lee et al. 1980, Wydoski and Whitney 1979, Page and Burr 1991). Lee et al. (1980) mentioned occurrence in Athabasca River, Alberta, but did not map this locality; Page and Burr (1991) did not indicate the occurrence of this species in Alberta.