Sebastes variabilis, Light dusky rockfish : fisheries

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Sebastes variabilis (Pallas, 1814)

Light dusky rockfish
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Sebastes variabilis   AquaMaps   Data sources: GBIF OBIS
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Image of Sebastes variabilis (Light dusky rockfish)
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drawing shows typical species in Sebastidae.

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

> Perciformes/Scorpaenoidei (Scorpionfishes) > Sebastidae (Rockfishes, rockcods and thornyheads) > Sebastinae
Etymology: Sebastes: Greek, sebastes = august, venerable (Ref. 45335);  variabilis: Name is presumed to be referring to the wide range of body color of the species..
More on author: Pallas.

Environment: milieu / climate zone / depth range / distribution range Ecologie

marien demersaal; diepte 6 - 675 m (Ref. 53613), usually 100 - 300 m (Ref. 53613). Subtropical

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North Pacific: Japan, east coast of Kamchatka to Cape Ol'utorskii in western Bering Sea, along the Aleutian Islands to 60°N in the eastern Bering Sea, through the Gulf of Alaska south to Johnstone Strait, British Columbia and to central Oregon.

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturity: Lm 36.5  range ? - ? cm
Max length : 43.1 cm SL mannelijk / geslacht onbekend; (Ref. 53613); max. gerapporteerde leeftijd: 50 Jaren (Ref. 93327)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 13 - 14; Dorsale zachte stralen (totaal): 13-16; Anale stekels 3; Anale zachte stralen: 7 - 9; Wervels: 28 - 29. This species is distinguished by the following characters: body light yellow to greenish brown to gray, typically greenish brown, with orange flecks present on sides, distinctly light ventrally above anal-fin base and on ventral pectoral-fin rays; peritoneum light gray to jet black; strong symphyseal knob; extrinsic swimbladder muscle with a single section of striated muscle, lacking anterior fascia, otherwise of type I (a-z) of Hallacher (1974); lateral-line pores 43-54, scales 47-63; pectoral-fin rays 16-19; anal-fin rays 7-9; dorsal-fin rays 13-16; vertebrae total 28-29 (11-12 + 16-18) (Ref. 53613).

Biologie     Verklarende woordenlijst (bv. epibenthic)

Collection depth between 6-370 m, deepest recorded depth at 675 m. Large adults common along the edge of the continental shelf at 100-300 m where the species is targeted for commercial use. Captured in the offshore trawl fishery. Males and females captured by trawl surveys vary widely in maturity during the summer (May-July) (Ref. 53613).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

Orr, J.W. and J.E. Blackburn, 2004. The dusky rockfishes (Teleostei: Scorpaeniformes) of the North Pacific Ocean: resurrection of Sebastes variabilis (Pallas, 1814) and a redescription of Sebastes ciliatus (Tilesius, 1813). Fish. Bull. 102:328-348. (Ref. 53613)

Status op de Rode Lijst van het IUCN (Ref. 130435)


CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

Visserij: commercieel
FAO - Publication: search | FishSource |

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Estimates based on models

Preferred temperature (Ref. 123201): 0.5 - 6.2, mean 3.2 °C (based on 368 cells).
Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00587 - 0.01627), b=3.08 (2.94 - 3.22), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trofisch niveau (Ref. 69278):  3.7   ±0.5 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref. 120179):  Zeer laag, minimale populatieverdubbelingstijd meer dan 14 jaar (K=0.2; tm=9.2; tmax=50).
Prior r = 0.20, 95% CL = 0.13 - 0.30, Based on 1 stock assessment.
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (41 of 100).