Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
marien bathydemersaal; oceanodroom (Ref. 87829); diepte 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).
Lengte bij maturiteit / Grootte / Gewicht / Leeftijd
Maturiteit: Lm 33.2, range 25 - 43.3 cm
Max length : 53.0 cm TL mannelijk / geslacht onbekend; (Ref. 56527); max. gepubliceerd gewicht: 2.1 kg (Ref. 56527); max. gerapporteerde leeftijd: 103 Jaren (Ref. 93933)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 13; Dorsale zachte stralen (totaal) : 14 - 17; Anale stekels: 3; Anale zachte stralen: 6 - 9; Wervels: 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)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: van groot commercieel belang; sportvis: ja
Tools
Speciale rapporten
Download XML
Internetbronnen
Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
|
Bayesian length-weight
|
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). |
Trofisch niveau (Ref. 69278) |
3.5 ±0.3 se; based on diet studies. |
|
Generation time |
8.3 (7.8 - 10.4) years. Estimated as median ln(3)/K based on 33 growth studies. |
Weerstandsvermogen (Ref. 120179) |
Zeer laag, minimale populatieverdubbelingstijd meer dan 14 jaar (Musick et al. 2000 (Ref. 36717); tmax=103; tm=7; K=0.1; Fec=31,000). |
|
Rate of population increase |
Prior r = 0.20, 95% CL = 0.13 - 0.29, Based on 8 full stock assessments. |
Kwetsbaarheid van de visserij (Ref. 59153) |
High vulnerability (59 of 100). 🛈 |
Kwetsbaarheid voor het klimaat (Ref. 125649) |
Moderate vulnerability (38 of 100). 🛈 |
Prijsklasse (Ref. 80766) |
Medium.
|
Voedingsstoffen (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); |