Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser bathydemersal; ozeanodrom (Ref. 87829); tiefenbereich 0 - 825 m (Ref. 6793), usually 165 - 293 m (Ref. 27437). Deep-water; 64°N - 24°N, 143°E - 110°W (Ref. 54884)
North Pacific: Honshu, Japan to Cape Navarin in the Bering Sea (but not in the Sea of Okhotsk) and La Jolla, California, and along the Aleutians from Stalemate Bank and Bowers Bank to the Alaska Peninsula. Stocks have suffered severe population decline due to overfishing (Ref. 27437).
Länge bei der ersten Reifung / Größe / Gewicht / Alter
Geschlechtsreife: Lm 33.2, range 25 - 43.3 cm
Max length : 53.0 cm TL Männchen/unbestimmt; (Ref. 56527); max. veröff. Gewicht: 2.1 kg (Ref. 56527); max. veröff. Alter: 103 Jahre (Ref. 93933)
Rückenflossenstacheln (insgesamt) : 13; Rückenflossenweichstrahlen (insgesamt) : 14 - 17; Afterflossenstacheln: 3; Afterflossenweichstrahlen: 6 - 9; Wirbelzahl: 26. Head spines weak - nasal, preocular, supraocular (may be absent), postocular, tympanic, parietal, and nuchal (may be absent) spines present, coronal spine absent (Ref. 27437). Long lower jaw with prominent forward directed symphyseal knob (Ref. 27437). Posterior margin of caudal indented (Ref. 6885). Bright to light red, usually with dark markings dorsally, may have some dark stippling on sides and dark blotch on caudal peduncle (Ref. 27437).
Body shape (shape guide): fusiform / normal.
Abundant in offshore waters (Ref. 2850). Young pelagic up to age 3 (Ref. 6885). Grows slowly (Ref. 2850). Viviparous (Ref. 34817). Very important commercial rockfish in the North Pacific (Ref. 2850, 27437) and are considered as one of the straddling stocks in the northwest Pacific (Ref. 87829). Marketed as fillets (Ref. 2850). Utilized fresh and frozen; eaten fried, microwaved and baked (Ref. 9988).
Produces young in small numbers, only about 300,000 when the fish is 20 years old.
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))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: hoch kommerziell; Sportfisch: ja
Tools
Zusatzinformationen
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Phylogenetischer Diversitätsindex (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00955 (0.00798 - 0.01143), b=3.09 (3.05 - 3.13), in cm total length, based on LWR estimates for this species (Ref. 93245). |
Trophische Ebene (Ref. 69278) |
3.5 ±0.3 se; based on diet studies. |
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Generation time |
8.3 (7.8 - 10.4) years. Estimated as median ln(3)/K based on 33 growth studies. |
Widerstandsfähigkeit (Ref. 120179) |
sehr niedrig, Verdopplung der Population dauert mehr als 14 Jahre. (Musick et al. 2000 (Ref. 36717); tmax=103; tm=7; K=0.1; Fec=31,000). |
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Rate of population increase |
Prior r = 0.20, 95% CL = 0.13 - 0.29, Based on 8 full stock assessments. |
Anfälligkeit der Fischerei (Ref. 59153) |
High vulnerability (59 of 100). 🛈 |
Klimaanfälligkeit (Ref. 125649) |
Moderate vulnerability (38 of 100). 🛈 |
Preiskategorie (Ref. 80766) |
Medium.
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Nährstoffe (Ref. 124155) |
Calcium = 17.4 [6.4, 61.2] mg/100g; Iron = 0.305 [0.125, 0.808] mg/100g; Protein = 17.2 [16.0, 18.5] %; Omega3 = 0.7 [0.3, 1.8] g/100g; Selenium = 44.5 [15.6, 134.0] μg/100g; VitaminA = 16.3 [3.9, 72.7] μg/100g; Zinc = 0.3 [0.2, 0.6] mg/100g (wet weight); |