Sebastes ciliatus (Tilesius, 1813)

Dusky rockfish
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Native range | All suitable habitat | Point map | Year 2100
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Sebastes ciliatus   AquaMaps   Data sources: GBIF OBIS
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Image of Sebastes ciliatus (Dusky rockfish)
Sebastes ciliatus
Picture by Gotshall, D.W.

Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterigi (pesci con pinne raggiate) > Scorpaeniformes (Scorpionfishes and flatheads) > Sebastidae (Rockfishes, rockcods and thornyheads) > Sebastinae
Etymology: Sebastes: Greek, sebastes = august, venerable (Ref. 45335);  ciliatus: Name from Latin 'ciliatus' meaning 'eyelash' (Ref. 27436) or 'eyelid', referring to the numerous accessory scales (similar to fringing eyelashes) on the psoterior field of the larger scales in most species of Sebastes (Ref. 53613).

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

; marino demersale; distribuzione batimetrica 5 - 160 m (Ref. 53613).   Temperate; 58°N - 50°N

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

North Pacific: western Aleutian Islands and eastern Bering Sea, through the Gulf of Alaska, to southeast Alaska; including south to Johnstone Strait, British Columbia.

Length at first maturity / Size / Peso / Age

Maturity: Lm 29.0  range ? - ? cm
Max length : 53.0 cm TL maschio/sesso non determinato; (Ref. 27437); peso massimo pubblicato: 1.8 kg (Ref. 40637); Età massima riportata: 67 anni (Ref. 39247)

Short description Morfologia | Morfometria

Spine dorsali (totale): 13; Raggi dorsali molli (totale): 15; Spine anali 3; Raggi anali molli: 8. Head spines weak to very weak - nasals usually present, parietals usually absent, preocular, supraocular, postocular, tympanic, coronal and nuchal spines absent (Ref. 27437). Two distinct types, (1) dark dusky - uniformly dark or dusky in color, symphyseal knob absent and, (2) light dusky - a larger, greenish brown fish, lighter ventrally, fins tinged with pink or orange, symphyseal knob present (Ref. 27437). Caudal fin slightly indented (Ref. 6885).

Biologia     Glossario (es. epibenthic)

Found hovering in loose organized groups just above rocky reefs and along shorelines, or may rest singly upon rocky substrate (Ref. 27436). Feed by picking and seizing food items that are either drifting or suspended in the water column (Ref. 27302). Viviparous (Ref. 34817). Sold as fresh or frozen fillets; eaten as fish cakes (Ref. 27436). Captured by the nearshore jig fishery and has been reported to comprise up to 25% of the catch in the 'black rockfish' jig fishery of the northern Gulf of Alaska (citation in Ref. 53613).

Life cycle and mating behavior Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

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. 119314)


CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Pesca: scarso interesse commerciale; Pesce da pesca sportiva: si
FAO(Publication : search) | FishSource |

Informazioni ulteriori

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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 1.2 - 5.8, mean 4.1 (based on 65 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00574 - 0.01742), b=3.02 (2.87 - 3.17), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.4   ±0.43 se; Based on food items.
Resilienza (Ref. 69278):  Molto basso, tempo minimo di raddoppiamento della popolazione più di 14 anni (tmax=67).
Vulnerability (Ref. 59153):  High to very high vulnerability (70 of 100) .
Price category (Ref. 80766):   Medium.