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Sebastes variabilis (Pallas, 1814)

Light dusky rockfish
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Native range | All suitable habitat | Point map | Year 2100
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)
Sebastes variabilis
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drawing shows typical fish in this Family.

分類 / Names 俗名 | 同種異名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii 輻鰭魚綱 (條鰭魚) > Scorpaeniformes (Scorpionfishes and flatheads) 鮋形目 (Scorpionfishes and flatheads) > Sebastidae (Rockfishes, rockcods and thornyheads) 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 生態學

; 海洋 居於水底的; 深度上下限 6 - 675 m (Ref. 53613), usually 100 - 300 m (Ref. 53613).   

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

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.

Length at first maturity / 大小 / 重量 / 年齡

Maturity: Lm 36.5  range ? - ? cm
Max length : 43.1 cm SL 雄魚/尚未辨別雌雄; (Ref. 53613); 最大年齡: 50 年 (Ref. 93327)

簡短描述 型態特徵 | 形態測量圖

背棘 (總數): 13 - 14; 背的軟條 (總數): 13-16; 臀棘 3; 臀鰭軟條: 7 - 9; 脊椎骨: 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).

生物學特性     字彙 (例如 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).

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | | 孕卵數 | 仔魚


主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

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)

IUCN 瀕危狀態 (Ref. 120744)

  未評估 

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

 





人類使用

漁業: 商業性
FAO(Publication : search) | FishSource |

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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 0.5 - 6.2, mean 3.2 (based on 368 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00604 - 0.01735), b=3.06 (2.91 - 3.21), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
營養階層 (Ref. 69278):  3.8   ±0.6 se; Based on size and trophs of closest relatives
回復力 (Ref. 69278):  非常低的, 最小族群倍增時間超過14 年 (K=0.2; tm=9.2; tmax=50).
Prior r = 0.20, 95% CL = 0.13 - 0.30, Based on 1 stock assessment.
瀕危性 (Ref. 59153):  Moderate to high vulnerability (45 of 100) .