Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Percopsiformes
(Trout-perches, pirate perches and cavef) > Percopsidae
Etymology: Percopsis: Greek, perke = perch + Greek, opsis = appearance (Ref. 45335).
Environment / Climate / Range
Freshwater; demersal. Temperate; 44°N - 43°N
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 9.6 cm TL male/unsexed; (Ref. 5723); common length : 7.0 cm TL male/unsexed; (Ref. 12193); max. reported age: 6 years (Ref. 12193)
North America: Columbia River drainage in Idaho, Washington and Oregon, USA.
Occurs in quiet backwaters and pool margins of small to large rivers. Usually found near vegetation over sand.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 1.0010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00575 (0.00272 - 0.01217), b=3.08 (2.89 - 3.27), based on LWR estimates for species & Family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.3 ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (tmax = 6; Fec = 5,370).
Vulnerability (Ref. 59153
): Low vulnerability (24 of 100) .