Actinopterygii (ray-finned fishes) > Scorpaeniformes
(Scorpionfishes and flatheads) > Sebastidae
(Rockfishes, rockcods and thornyheads) > Sebastinae
Etymology: Sebastes: Greek, sebastes = august, venerable (Ref. 45335); paucispinis: From the Latin pauci and spinus, connoting 'few' and 'spine' (Ref. 27436). More on author: Ayres.
Environment / Climate / Range
Marine; reef-associated; depth range 0 - 476 m (Ref. 27437). Subtropical; 65°N - 31°N
Length at first maturity / Size / Weight / Age
Maturity: Lm 48.0, range 36 - ? cm
Max length : 91.0 cm TL male/unsexed; (Ref. 2850); max. published weight: 9.6 kg (Ref. 4690); max. reported age: 50 years (Ref. 75794)
(total): 13 - 15;
soft rays: 8 - 10;
Vertebrae: 26. A large rockfish with weak head spines - nasal and parietal spines usually absent, preocular, supraocular, postocular, tympanic, coronal and nuchal spines absent (Ref. 27437). Lower jaw long, thickened, with no real symphyseal knob and projects past upper jaw; maxillary extends to behind the eye; parietal ridges parallel (Ref. 27437). Caudal slightly indented (Ref. 6885). Olive orange to burnt orange or brown in color (Ref. 27437). Branchiostegal rays: 7 (Ref. 36715).
Eastern Pacific: Stepovak Bay, Alaskan Peninsula to Punta Blanca, Baja California, Mexico.
Adults found over rocky reefs, but also common on open bottoms to about 320 m (Ref. 2850). Juveniles are pelagic and settle in near shore nursery areas, then move to deeper habitats (Ref. 36715). Young form schools (Ref. 2850). Feed mainly on fishes, including other rockfishes (Ref. 2850). Ovoviviparous, with planktonic larvae (Ref. 36715, 6885, 34817). Validated age by radiometry is 37 yrs (Ref. 75794). A famous sport fish throughout its range (Ref. 2850). Flesh is of excellent quality when kept chilled (Ref. 27436). Sold with other rockfish species (Ref. 27436).
Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983. A field guide to Pacific coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 336 p.
IUCN Red List Status (Ref. 90363)
Fisheries: minor commercial; gamefish: yes; aquarium: public aquariums
CollaboratorsPicturesStamps, CoinsSoundsCiguateraSpeedSwim. typeGill areaOtolithsBrainsVision
Estimates of some properties based on empirical models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00000 (0.00000 - 0.00000), b=0.00 (0.00 - 0.00), based on (Ref. 93245
Trophic Level (Ref. 69278
): 3.5 ±0.46 se; Based on food items.
Resilience (Ref. 69278
): Low, minimum population doubling time 4.5 - 14 years (tm=4; tmax=50; Musick et al. 2000 (Ref. 36717
Vulnerability (Ref. 59153
): High vulnerability (63 of 100) .