Scientific Name
Bathymaster signatus

Common Name
Searcher

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 47; Anal spines: 0; Anal soft rays: 32 - 34. Caudal fin narrow, gently rounded (Ref. 6885). Brown on the dorsal surface with dark markings, lighter ventrally with yellow to orange streaks; yellow on head in some areas and yellow mottling on fins; black blotch on anterior part of dorsal fin for first 3 to 5 rays, conspicuous; pelvic fins dusky and some dark marks on other fins; eyes reputed to be blue (Ref. 6885).

Classification

Classified By

Cope, 1873

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Ronquils (Bathymasteridae)

Distribution

Region

Arctic, Northwest to Northeast Pacific

Distribution

Arctic, Northwest to Northeast Pacific: East Siberian Sea to eastern Kamchatka and the Commander Islands, Russian and Washington, USA (Ref. 6793); including Hokkaido, Japan (Ref. 37422) and the Sea of Okhotsk (Ref. 48889).

Range

Unknown

Environment

Climate

Polar

Water Temperature From

1 °C

Water Temperature To

2 °C

Depth From - meters

0 m

Depth To - meters

825 m

Zone

demersal

Environment

Marine; demersal; depth range 0 - 825 m (Ref. 6793), usually 35 - 380 m (Ref. 50550)

Trophic Level

3.55 s.e. 0.57 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

38.0 cm

Common Length

30.0 cm

Phylogenetic Diversity Index

PD50 = 0.5703 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries:

Vulnerability

Moderate vulnerability (38 of 100)

Resilience

Unknown

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated