Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Cypriniformes
(Carps) > Cyprinidae
(Minnows or carps) > Leuciscinae
Etymology: Mylocheilus: Greek, mylo = mill + Greek, cheilos =lip (Ref. 45335); caurinus: Species name taken after caurus which means northwest wind; named caurinus --- northwestern (Ref. 1998).
Environment / Climate / Range
Freshwater; brackish; demersal. Temperate; 59°N - 40°N
Length at first maturity / Size / Weight / Age
Maturity: Lm 24.9  range ? - ? cm
Max length : 36.0 cm TL male/unsexed; (Ref. 5723); common length : 19.8 cm SL male/unsexed; (Ref. 1998); common length :22.5 cm SL (female)
North America: Nass (Pacific Slope) and Peace River (Arctic basin) systems in British Columbia, Canada south to Columbia River drainage in Oregon and Idaho, USA; also in Vancouver, Canada and other coastal Islands. Sometimes occurs at Spanish Banks (Ref. 4569).
Adults form schools in lakes and slow-flowing areas of small and medium rivers. Most common around vegetation. Can withstand brackish waters for a limited period (Ref. 1998). Newly hatched individuals school near the shore, moving into deeper water in the summer (Ref. 4569). Feed mainly on aquatic insects and its larvae and some terrestrial insects (Ref. 10288); but also on planktonic crustaceans, mollusks, and small fishes (Ref. 1998). Preyed upon by fish-eating birds and mammals (Ref. 1998). Utilized as game fish and as food in the past (Ref. 1998).
Spawning fish come close to shore in groups of 50-400. Groups are about 25 to 100 feet apart from each other. Females are crowded by 2 or more males into 1 or 2 inches of water by the shoreline and eggs and sperms are released.
Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)
IUCN Red List Status (Ref. 96402)
CITES (Ref. 94142)
Threat to humans
Aquarium: public aquariums
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00776 (0.00349 - 0.01726), b=3.11 (2.91 - 3.31), based on LWR estimates for this Subfamily-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.5 ±0.49 se; Based on food items.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (tm=4).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (47 of 100) .