Actinopterygii (ray-finned fishes) > Scorpaeniformes
(Scorpionfishes and flatheads) > Sebastidae
(Rockfishes, rockcods and thornyheads) > Sebastinae
Etymology: Sebastes: Greek, sebastes = august, venerable (Ref. 45335); aleutianus: Named after the Aleutian Islands in Alaska (Ref. 6885). More on authors: Jordan & Evermann.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 25 - 900 m (Ref. 50610). Deep-water; 66°N - 32°N, 130°E - 117°W
North Pacific: Japan to Navarin Canyon in the Bering Sea (but not in the Sea of Okhotsk), throughout the Aleutian Islands, and south to San Diego, California, USA.
Length at first maturity / Size / Weight / Age
Maturity: Lm 47.0  range ? - ? cm
Max length : 97.0 cm TL male/unsexed; (Ref. 9015); max. published weight: 900.00 g (Ref. 40637); max. reported age: 205 years (Ref. 55701)
(total): 12 - 14;
soft rays: 6 - 8;
Vertebrae: 27. This species is distinguished by the following characters: 8 head spines strong - nasal, preocular, supraocular, postocular, tympanic, coronal, parietal and nuchal spines; 2 or more infraorbital spines; differs from S. melanostictus by having a pale body with no distinct spots on the membranes of the spinous dorsal fin; shorter dorsal-fin spine 1, 1.5?3.0 times into orbit length, 4.3?7.2% SL (vs. 1.0?1.8 times into orbit length and 5.9?9.6% SL); shorter dorsal-fin spine 4, 9.8?15.5% SL (vs. 12.0?18.4% SL); shorter and fewer gill rakers, 3.4?6.3% SL (vs. 3.9?7.1% SL) and 29?34 (vs. 30?36), respectively (Ref. 87139).
Usually found offshore (Ref. 27437). Viviparous (Ref. 34817).
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. 115941)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 1.1 - 6.6, mean 3.8 (based on 232 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00891 (0.00560 - 0.01419), b=3.10 (2.97 - 3.23), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.5 ±0.2 se; Based on diet studies.
Resilience (Ref. 69278
): Very Low, minimum population doubling time more than 14 years (tmax=205).
Prior r = 0.03, 95% CL = 0.02 - 0.05, Based on 1 stock assessment.
Vulnerability (Ref. 59153
): High to very high vulnerability (74 of 100) .