Digitate cusk eel (Dicrolene introniger) fish species and information / pictures of Digitate cusk eel - Dicrolene introniger

Digitate cusk eel (Dicrolene introniger) fish species information

Scientific Name
Dicrolene introniger

Common Name
Digitate cusk eel

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 100-115; Anal spines: 0; Anal soft rays: 85 - 98. Snout rather blunt; eye diameter almost as long as snout; opercular spine strong and straight; hind margin of preopercle usually with 3 sharp spines; 1 median (broad) and a pair of basibranchial tooth patches; pseudobranchial filaments 2 or 3; 7-15 developed rakers on anterior arch; lower 5-11 pectoral fin rays free and longer than upper ones; precaudal vertebrae 13-16 (Ref. 34024). No black fin rays; one supraorbital and 3 preopercular spines all strong (Ref. 34024).

Classification

Classified By

Goode & Bean, 1883

Class

Ray-finned fishes (Actinopterygii)

Order

Cusk eels (Ophidiiformes)

Family

Cusk-eels (Ophidiidae)

Distribution

Region

Eastern Atlantic

Distribution

Eastern Atlantic: continental slope all along West Africa. Western Atlantic: warmer parts of the area including the Gulf of Mexico.

Range

Unknown

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

700 m

Depth To - meters

1785 m

Zone

bathydemersal

Environment

Marine; bathydemersal; depth range 700 - 1785 m (Ref. 34024), usually 1000 - 1600 m (Ref. 33456)

Trophic Level

3.03 s.e. 0.18 Based on food items.

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

35.0 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

Low to moderate vulnerability (31 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