Scientific Name
Rouleina attrita

Common Name
Softskin smooth-head

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 18-21; Anal spines: 0; Anal soft rays: 18 - 21

Classification

Classified By

Vaillant, 1888

Class

Ray-finned fishes (Actinopterygii)

Order

Smelts (Osmeriformes)

Family

Slickheads (Alepocephalidae)

Distribution

Region

Circumglobal, widely distributed in the Atlantic, most Indian Ocean submarine ridges, Subantarctic, North Pacific and tropical western and eastern Pacific.

Distribution

Circumglobal, widely distributed in the Atlantic, most Indian Ocean submarine ridges, Subantarctic, North Pacific and tropical western and eastern Pacific.

Range

65°N - 36°S, 180°W - 180°E

Environment

Climate

Deep-water

Water Temperature From

3 °C

Water Temperature To

3 °C

Depth From - meters

450 m

Depth To - meters

2300 m

Zone

bathyalpelagic

Environment

Marine; bathypelagic; depth range 450 - 2300 m (Ref. 50610)

Trophic Level

3.4 s.e. 0.44 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

48.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5010 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

High vulnerability (63 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