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Perciformes/Scorpaenoidei (Scorpionfishes) >
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).
More on author: Gilbert.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
marino batidemersale; distribuzione batimetrica 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 / Peso / Age
Maturity: Lm 19.0, range 18 - ? cm
Max length : 46.0 cm TL maschio/sesso non determinato; (Ref. 4925); peso massimo pubblicato: 810.00 g (Ref. 40637); Età massima riportata: 86 anni (Ref. 56049)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 13; Raggi dorsali molli (totale) : 11 - 14; Spine anali: 3; Raggi anali molli: 5 - 8; Vertebre: 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. 130435)
Threat to humans
Harmless
Human uses
Pesca: scarso interesse commerciale
Strumenti
Special reports
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Estimates based on models
Preferred temperature (Ref.
123201): 4.4 - 8.6, mean 5.9 °C (based on 131 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00499 - 0.02004), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.5 ±0.39 se; based on food items.
Resilienza (Ref.
120179): Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (tm=5; tmax=86; Fec=14,000).
Prior r = 0.12, 95% CL = 0.08 - 0.18, Based on 1 full stock assessment.
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (36 of 100).