Scientific Name
Hemitripterus bolini

Common Name
Bigmouth sculpin

Biology
Dorsal spines (total): 13 - 14; Dorsal soft rays (total): 11-12; Anal spines: 0; Anal soft rays: 13. Caudal fin rounded (Ref. 6885). Color mottled gray or brown above, paler below; four or five vague darker saddles across back; two tan stripes across head; red below anterior part of spinous dorsal; mottled red brown on membranes of spinous dorsal fin, lighter between fifth and eighth spines; chestnut brown on rayed dorsal with pale gray marbling; on pectorals alternating bands of yellow brown, light gray, and dark brown; light gray with fine black speckling and orange patches on anal fin; on caudal fin dark reddish brown with fine vertical stripes of gray brown (Ref. 6885).

Classification

Classified By

Myers, 1934

Class

Ray-finned fishes (Actinopterygii)

Order

Scorpionfishes and Flatheads (Scorpaeniformes)

Family

Sea ravens or sailfin sculpins (Hemitripteridae)

Distribution

Region

North Pacific

Distribution

North Pacific: Bering Sea to the Aleutian chain and Eureka, California, USA.

Range

Unknown

Environment

Climate

Temperate

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

25 m

Depth To - meters

925 m

Zone

demersal

Environment

Marine; demersal; depth range 25 - 925 m (Ref. 6793), usually 200 - 300 m (Ref. 57943)

Trophic Level

4.49 s.e. 0.80 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

73.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.6289 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Gamefish: yes

Vulnerability

Moderate to high vulnerability (49 of 100)

Resilience

Unknown

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated