Scientific Name
Sebastolobus macrochir

Common Name
Broadbanded thornyhead

Biology
Occurs in places with the steepest downthrow and sharp bends of sea bottom often in the places of the slope surrounded by large depths (the steep bottom relief causes vertical turbulent currents that provide the accumulation of food items) (Ref. 26289). Oviparous (Ref. 205). Eggs are extruded in floating gelatinous masses (Ref. 52092).

Classification

Classified By

G?nther, 1877

Class

Ray-finned fishes (Actinopterygii)

Order

Scorpionfishes and Flatheads (Scorpaeniformes)

Family

Rockfishes, rockcods and thornyheads (Sebastidae)

Distribution

Region

North Pacific

Distribution

North Pacific: Sagami Bay, Japan to the southern Kuril Islands and off Sakhalin, Russia.

Range

55°N - 35°N

Environment

Climate

Temperate

Water Temperature From

2 °C

Water Temperature To

4 °C

Depth From - meters

100 m

Depth To - meters

1504 m

Zone

demersal

Environment

Marine; demersal; depth range 100 - 1504 m (Ref. 50550)

Trophic Level

3.28 s.e. 0.52 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

44.0 cm

Common Length

26.4 cm

Phylogenetic Diversity Index

PD50 = 0.6250 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: commercial

Vulnerability

High to very high vulnerability (70 of 100)

Resilience

Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated