Actinopterygii (ray-finned fishes) > Scorpaeniformes
(Scorpionfishes and flatheads) > Sebastidae
(Rockfishes, rockcods and thornyheads) > Sebastinae
Etymology: Sebastes: Greek, sebastes = august, venerable (Ref. 45335); entomelas: Species name from the Greek ento and melas, meaning 'within' and 'black' (Ref. 27436).
Environment: milieu / climate zone / depth range / distribution range
Marine; pelagic-neritic; depth range 0 - 549 m (Ref. 27437). Temperate; 60°N - 32°N
Northeast Pacific: middle Albatross Bank in the Gulf of Alaska to Todos Santos Bay, Baja California, Mexico.
Length at first maturity / Size / Weight / Age
Maturity: Lm 36.0, range 29 - ? cm
Max length : 60.0 cm TL male/unsexed; (Ref. 9015); max. reported age: 60 years (Ref. 39247)
soft rays: 8 - 10. Head spines weak - nasal, preocular spines present, parietals usually present, supraocular, postocular and tympanic spines usually absent, coronal and nuchal spines absent (Ref. 27437). Interorbital space convex, sloped; no symphyseal knob; caudal peduncle narrow; anal fin with a strong posterior slant (Ref. 27437). Caudal fin indented (Ref. 6885). Gold brown to dusky, light ventrally; membranes of fins dark, lighter on spinous dorsal (Ref. 27437).
A generally active and free-swimming rockfish found in midwater above a rocky reef or steep shoreline; occasionally huddling motionless among caves and crevices (Ref. 27436). Young are found in shallow water (Ref. 2850). Form schools (Ref. 2850). Feed mostly on small pelagic crustaceans and fishes (Ref. 2850). Viviparous (Ref. 34817). Marketed fresh and frozen; eaten pan-fried, boiled, microwaved and baked (Ref. 9988).
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. 115185)
CITES (Ref. 115941)
Threat to humans
Fisheries: commercial; gamefish: yes; aquarium: commercial
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 3.4 - 8.6, mean 5.6 (based on 213 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00504 - 0.02175), b=3.07 (2.90 - 3.24), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.7 ±0.3 se; Based on diet studies.
Resilience (Ref. 69278
): Very Low, minimum population doubling time more than 14 years (tm=6; tmax=60; also Musick et al. 2000 (Ref. 36717
Prior r = 0.23, 2 SD range = 0.07 - 0.75, log(r) = -1.47, SD log(r) = 0.58, Based on: 6 tgen, 1 tmax, 4 Fec records
Vulnerability (Ref. 59153
): High vulnerability (65 of 100) .