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Sebastes melanops, Black rockfish : fisheries, gamefish, aquarium
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Sebastes melanops
Picture by
Lonhart, S.I.
Teleostei (teleosts) >
Perciformes/Scorpaenoidei
(Scorpionfishes) >
Sebastidae
(Rockfishes, rockcods and thornyheads) > Sebastinae
Etymology:
Sebastes:
Greek, sebastes = august, venerable (Ref.
45335
)
;
melanops:
From the Greek melas and ops meaning 'black' and 'face' (Ref.
27436
)
.
More on author:
Girard
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 0 - 366 m (Ref.
6885
), usually 183 - 274 m (Ref.
6885
). Temperate; 62°N - 22°N, 170°E - 110°W
Eastern Pacific: Amchitka Island, Aleutian Islands, Alaska to Paradise Cove, Baja California, Mexico.
Length at first maturity / Size / Weight / Age
Maturity: L
m
40.3
, range 30 - 42 cm
Max length : 63.0 cm TL male/unsexed; (Ref.
27437
); max. published weight: 4.8 kg (Ref.
2850
); max. reported age: 50 years (Ref.
39247
)
Dorsal
spines
(total): 13 - 14;
Dorsal
soft rays
(total): 13-16;
Anal
spines
: 3;
Anal
soft rays
: 7 - 9;
Vertebrae
: 26. Head spines weak to very weak - nasals present, preocular and postocular spines usually absent, supraocular, tympanic, coronal, parietal and nuchal spines absent (Ref.
27437
). Symphyseal knob very weak or absent (Ref.
27437
). Eyes moderately large (Ref.
27437
). Anal fin profile rounded or with greater portion slanted posteriorly (Ref.
27437
). Posterior margin of caudal fin indented (Ref.
27437
). Dark grey to black with light grey mottling dorsally, lighter ventrally (Ref.
27437
). Branchiostegal rays: 7 (Ref.
36715
).
Found near rocky reefs in shallow water and in open water over deep banks (Ref.
2850
). Adults live both off and on bottom (Ref.
2850
). Juveniles are pelagic (Ref.
36715
). Form schools (Ref.
2850
). Feed on fishes (Ref.
27302
). Viviparous, with planktonic larvae (Ref.
36715
). Young are important prey species for other fishes, marine mammals and birds. Excellent food fish (Ref.
27436
).
Viviparous (Ref.
36715
,
34817
).
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
)
Not Evaluated
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries: minor commercial; gamefish: yes; aquarium: public aquariums
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Estimates based on models
Preferred temperature (Ref.
123201
): 3.8 - 7.8, mean 5.5 °C (based on 52 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
): 4.4 ±0.0 se; based on diet studies.
Resilience (Ref.
120179
): Low, minimum population doubling time 4.5 - 14 years (tm=7.5; K=0.14; tmax=50).
Fishing Vulnerability (Ref.
59153
): High vulnerability (64 of 100).
Climate Vulnerability (Ref.
125649
): Moderate vulnerability (37 of 100).
Price category (Ref.
80766
):
Medium
.
Nutrients (Ref.
124155
): Calcium = 6.07 [2.24, 17.66] mg/100g; Iron = 0.114 [0.045, 0.266] mg/100g; Protein = 18.9 [17.8, 20.2] %; Omega3 = 0.774 [0.291, 2.159] g/100g; Selenium = 25.3 [9.1, 74.1] μg/100g; VitaminA = 96.4 [29.4, 326.0] μg/100g; Zinc = 0.322 [0.164, 0.589] mg/100g (wet weight); based on
nutrient studies.
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