Scientific Name
Bathylychnops exilis

Common Name
Javelin spookfish

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 13-16; Anal spines: 0; Anal soft rays: 10 - 14; Vertebrae: 78 - 84. Branchiostegal rays: 2.

Classification

Classified By

Cohen, 1958

Class

Ray-finned fishes (Actinopterygii)

Order

Smelts (Osmeriformes)

Family

Barreleyes or spookfishes (Opisthoproctidae)

Distribution

Region

Eastern Atlantic

Distribution

Eastern Atlantic: off Azores Island. Northeast Pacific: British Columbia, Canada (Ref. 11980) to central California (Ref. 35626). Northwest Pacific: Kashimanada Sea, Japan (Ref. 559).

Range

55°N - 35°N, 140°E - 120°W

Environment

Climate

Subtropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

640 m

Zone

pelagic-oceanic

Environment

Marine; pelagic-oceanic; oceanodromous (Ref. 51243); depth range 0 - 640 m (Ref. 559)

Trophic Level

4.08 s.e. 0.14 Based on size and trophs of closest relatives

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

50.0 cm

Common Length

Unknown 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: of no interest

Vulnerability

High vulnerability (61 of 100)

Resilience

Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated