Dusky rockfish (Sebastes ciliatus) fish species and information / pictures of Dusky rockfish - Sebastes ciliatus

Dusky rockfish (Sebastes ciliatus) fish species information

Scientific Name
Sebastes ciliatus

Common Name
Dusky rockfish

Biology
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).

Classification

Classified By
Tilesius, 1813
Class
Ray-finned fishes (Actinopterygii)
Order
Scorpionfishes and Flatheads (Scorpaeniformes)
Family
Rockfishes, rockcods and thornyheads (Sebastidae)

Distribution

Region
North Pacific
Distribution
North Pacific: western Aleutian Islands and eastern Bering Sea, through the Gulf of Alaska, to southeast Alaska; including south to Johnstone Strait, British Columbia.
Range
58°N - 50°N

Environment

Climate
Temperate
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
5 m
Depth To - meters
160 m
Zone
demersal
Environment
Marine; demersal; depth range 5 - 160 m (Ref. 53613)
Trophic Level
3.6 s.e. 0.54 Based on diet studies.
Occurs in Marine / Salt water
True
Occurs in Brackish water
False
Occurs in Fresh Water
False
Occurs on Reefs
False
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
53.0 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries: minor commercial; gamefish: yes
Vulnerability
High to very high vulnerability (70 of 100)
Resilience
Very Low, minimum population doubling time more than 14 years (tmax=67)
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated