Actinopterygii (ray-finned fishes) > Scorpaeniformes
(Scorpionfishes and flatheads) > Sebastidae
(Rockfishes, rockcods and thornyheads) > Sebastinae
Etymology: Sebastes: Greek, sebastes = august, venerable (Ref. 45335); emphaeus: From the Greek emphaeus, meaning 'display' (Ref. 27436). More on author: Starks.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 0 - 366 m (Ref. 27437). Temperate; 60°N - 38°N, 152°W - 120°W
Northeast Pacific: Kenai Peninsula, Alaska to northern California, USA.
Length at first maturity / Size / Weight / Age
Maturity: Lm 12.2  range ? - ? cm
Max length : 18.0 cm TL male/unsexed; (Ref. 2850)
Morphology | Morphometrics
soft rays: 7. Head spines strong to moderate - nasal, preocular, postocular, tympanic and parietal spines present, supraocular, coronal and nuchal spines absent; anal fin rounded (Ref. 27437). Caudal fin weakly forked (Ref. 6885). Reddish brown to copper with dark blotches dorsally, fading to white, often with a dark stripe ventrally; red mouth; fins transparent, tinged with pink (Ref. 27437).
Inhabits reefs and rocky shorelines and found in loose congregations hovering above the bottom or resting among caves and crevices (Ref. 27436). Seeks shelter in areas of strong current (Ref. 2850). Viviparous (Ref. 34817). Flesh is tasty and flaky, but since it is rarely caught, it is seldom used as a food fish (Ref. 2850, 27436). May be used as bait for large rockfish, lingcod or cabezon (Ref. 27436).
Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983. A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p. (Ref. 2850)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
Aquarium: public aquariums; bait: occasionally
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 5.6 - 9.1, mean 6.9 (based on 125 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01202 (0.00639 - 0.02262), b=3.08 (2.92 - 3.24), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.3 ±0.2 se; Based on diet studies.
Generation time: 2.1 ( na - na) years. Estimated as median LN(3)/K based on 2 growth studies.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.54-0.70; tm=1.9; tmax=13; Fec=3,295).
Vulnerability (Ref. 59153
): Low vulnerability (24 of 100) .