Actinopterygii (ray-finned fishes) > Scorpaeniformes
(Scorpionfishes and flatheads) > Sebastidae
(Rockfishes, rockcods and thornyheads) > Sebastinae
Etymology: Sebastes: Greek, sebastes = august, venerable (Ref. 45335); diploproa: From the Greek diploos and prora, meaning 'double' and 'prow' (Ref. 27436).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 0 - 800 m (Ref. 6793), usually 91 - 579 m (Ref. 2850). Deep-water; 60°N - 27°N, 168°W - 109°W
Northeast Pacific: Alaska Peninsula to Cedros Island, Baja California and the Gulf of California in Mexico.
Length at first maturity / Size / Weight / Age
Maturity: Lm 19.0, range 18 - ? cm
Max length : 46.0 cm TL male/unsexed; (Ref. 4925); max. published weight: 810.00 g (Ref. 40637); max. reported age: 86 years (Ref. 56049)
soft rays: 5 - 8;
Vertebrae: 26. Head spines strong - nasal, preocular, postocular, tympanic and parietal spines present, supraocular, coronal and nuchal spines absent (Ref. 27437). Toothed knob in front of each upper jaw, deep notch between jaws (Ref. 27437). Caudal fin moderately indented (Ref. 6885). A red rockfish, silver ventrally (Ref. 27437). Branchiostegal rays: 7 (Ref. 36715).
Common offshore, on soft bottoms (Ref. 2850). Young occur in shallow water, often at surface under drifting kelp (Ref. 2850). Viviparous, with planktonic larvae and pelagic juveniles (Ref. 36715, 34817). The biggest individuals are sometimes found in markets where the flesh is sold as rockfish fillet (Ref. 27436). Rarely caught by anglers (Ref. 27436).)
Gives birth in spring (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. 119314)
CITES (Ref. 115941)
Threat to humans
Fisheries: minor commercial
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 4.4 - 8.6, mean 5.9 (based on 131 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00577 - 0.01734), b=3.02 (2.87 - 3.17), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.7 ±0.6 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): Low, minimum population doubling time 4.5 - 14 years (tm=5; tmax=86; Fec=14,000).
Vulnerability (Ref. 59153
): High to very high vulnerability (66 of 100) .