Scientific Name
Alepocephalus triangularis

Common Name
Triangulate slickhead

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 17-19; Anal spines: 0; Anal soft rays: 18 - 21. Pored scales in lateral line fewer than 60. Frontal bone flat above the eye, not forming a ridge. Snout not spatulate, but pointed anteriorly, shorter than 1.5 times orbit diameter. Palatine teeth minute.

Classification

Classified By

Okamura & Kawanishi, 1984

Class

Ray-finned fishes (Actinopterygii)

Order

Smelts (Osmeriformes)

Family

Slickheads (Alepocephalidae)

Distribution

Region

Northwest Pacific

Distribution

Northwest Pacific: known only from the Ryukyu Trough.

Range

20°S - 32°S, 110°E - 160°W

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

1000 m

Depth To - meters

1140 m

Zone

bathydemersal

Environment

Marine; bathydemersal; depth range 1000 - 1140 m (Ref. 58018)

Trophic Level

3.38 s.e. 0.47 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

24.0 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

Unknown

Vulnerability

Moderate vulnerability (42 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated