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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