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Perciformes/Scorpaenoidei (Scorpionfishes) >
Sebastidae (Rockfishes, rockcods and thornyheads) > Sebastolobinae
Etymology: Sebastolobus: Greek, sebastes = august, venerable + Greek, lobos = lobe (Ref. 45335); alascanus: Species name after Alaska, the type locality (Ref. 27436).
More on author: Bean.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser demersal; tiefenbereich 17 - 1600 m (Ref. 50550), usually 91 - ? m (Ref. 2850). Temperate
North Pacific: Sea of Okhotsk north to the Navarin Canyon in the Bering Sea and from Stalemate Bank and Ulm Plateau in the Aleutian Islands southeast to Cedros Island, Baja California, Mexico. Reported from Japan (Ref. 559).
Länge bei der ersten Reifung / Größe / Gewicht / Alter
Geschlechtsreife: Lm 22.0  range ? - ? cm
Max length : 80.0 cm SL Männchen/unbestimmt; (Ref. 559); max. veröff. Gewicht: 9.0 kg (Ref. 56527); max. veröff. Alter: 100 Jahre (Ref. 90032)
Rückenflossenstacheln (insgesamt) : 15 - 17; Rückenflossenweichstrahlen (insgesamt) : 8 - 9; Afterflossenstacheln: 3; Afterflossenweichstrahlen: 4 - 5. Head spines very strong - nasal, preocular, supraocular, postocular, tympanic, parietal and nuchal spines present, coronal spines absent; large head and elongate body; strong spiny ridge on head; 3rd dorsal spine not much longer than 2nd, 4th or 5th; strong notch on pectoral fin (Ref. 27437). Bright red with some black on fins; gill chamber mostly pale (Ref. 27437). Caudal slightly rounded (Ref. 6885).
Body shape (shape guide): fusiform / normal.
Very common on soft bottoms (Ref. 2850). Oviparous (Ref. 205). Eggs are extruded in floating gelatinous masses (Ref. 31279). Have a thick glandular tissue on posterior margin of fin spines which is believed to be venomous (Ref. 57406). Rarely taken by game fishers (Ref. 27436). Flesh sweeter than that of other rockfishes (Ref. 27436).
Unlike other representatives of this group, this species has internal fertilization Oviparous (Ref. 6885). Females possess specialized ovarian structures including stalk-like ovigerous lamellae and secretory epithelia (Ref. 32832).
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 Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Nutzung durch Menschen
Fischereien: weniger kommerziell
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Schätzungen auf der Grundlage von Modellen
Phylogenetischer Diversitätsindex (Ref. 82804) |
PD50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00708 (0.00408 - 0.01228), b=3.16 (3.00 - 3.32), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
Trophische Ebene (Ref. 69278) |
3.6 ±0.3 se; based on diet studies. |
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Generation time |
47.8 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies. |
Widerstandsfähigkeit (Ref. 120179) |
sehr niedrig, Verdopplung der Population dauert mehr als 14 Jahre. (tmax> 100 (validated age: 62 yrs); tm= 13; Fec > 10,000). |
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Rate of population increase |
Prior r = 0.03, 95% CL = 0.02 - 0.05, Based on 2 full stock assessments. |
Anfälligkeit der Fischerei (Ref. 59153) |
High to very high vulnerability (70 of 100). 🛈 |
Klimaanfälligkeit (Ref. 125649) |
Moderate vulnerability (38 of 100). 🛈 |
Preiskategorie (Ref. 80766) |
Very high.
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Nährstoffe (Ref. 124155) |
Calcium = 18.4 [8.0, 49.9] mg/100g; Iron = 0.287 [0.128, 0.565] mg/100g; Protein = 17.5 [15.8, 19.3] %; Omega3 = 1.01 [0.41, 2.73] g/100g; Selenium = 29.6 [13.0, 73.1] μg/100g; VitaminA = 13.5 [3.9, 44.9] μg/100g; Zinc = 0.518 [0.305, 0.810] mg/100g (wet weight); |