分類 / Names
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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.
Environment: milieu / climate zone / depth range / distribution range
生態学
海 底生の; 深さの範囲 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).
Length at first maturity / サイズ / 重さ / 年齢
Maturity: Lm 22.0 range ? - ? cm
Max length : 80.0 cm SL オス/雌雄の選別がない; (Ref. 559); 最大公表体重: 9.0 kg (Ref. 56527); 最大記録サイズ: 100 年 (Ref. 90032)
背面の脊椎 (合計) : 15 - 17; 背鰭 (合計) : 8 - 9; 肛門の骨: 3; 臀鰭: 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).
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).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
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のレッドリストの状況は (Ref. 130435: Version 2024-1)
絶滅危惧 (EN) (A2d); Date assessed: 01 January 2000
Human uses
水産業: 少数商業の
用具
特記事項
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インターネットの情報源
Estimates based on models
Preferred temperature (Ref.
123201): 1.2 - 6.7, mean 3.8 °C (based on 417 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00692 (0.00397 - 0.01205), b=3.16 (3.00 - 3.32), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
栄養段階 (Ref.
69278): 3.6 ±0.3 se; based on diet studies.
Generation time: 47.8 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
回復力 (Ref.
120179): 非常に低い, １４年以上の倍増期間の最小個体群 (tmax> 100 (validated age: 62 yrs); tm= 13; Fec > 10,000).
Prior r = 0.03, 95% CL = 0.02 - 0.05, Based on 2 full stock assessments.
Fishing Vulnerability (Ref.
59153): High vulnerability (59 of 100).
Climate Vulnerability (Ref.
125649): Moderate vulnerability (38 of 100).
Nutrients (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);
