Scientific Name
Rouleina maderensis

Common Name
Madeiran smooth-head

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 20-22; Anal spines: 0; Anal soft rays: 20 - 22

Classification

Classified By

Maul, 1948

Class

Ray-finned fishes (Actinopterygii)

Order

Smelts (Osmeriformes)

Family

Slickheads (Alepocephalidae)

Distribution

Region

Eastern Atlantic

Distribution

Eastern Atlantic: off western Scotland, Madeira and the Azores southward to Liberia. Indian Ocean: off South Africa and Mascarene Plateau. Southeast Pacific: Chile (Ref. 9068). Elsewhere, Northwest Atlantic and western tropical Pacific.

Range

60°N - 56°S, 171°W - 61°E

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

595 m

Depth To - meters

1450 m

Zone

bathyalpelagic

Environment

Marine; bathypelagic; depth range 595 - 1450 m (Ref. 2711)

Trophic Level

3.35 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

32.0 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

Fisheries: of no interest

Vulnerability

Moderate to high vulnerability (50 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