Smallmouth spiny eel (Polyacanthonotus rissoanus) fish species and information / pictures of Smallmouth spiny eel - Polyacanthonotus rissoanus

Smallmouth spiny eel (Polyacanthonotus rissoanus) fish species information

Scientific Name
Polyacanthonotus rissoanus

Common Name
Smallmouth spiny eel

Biology
Dorsal spines (total): 26 - 36; Dorsal soft rays (total): 0. Same body coloration as P. africanus but lateral line lighter and less distinct (Ref. 6584). Maxilla fails to extend back to the posterior of nostril. Small mouth, short preoral snout. Light tan with black tips (Ref. 37108).

Classification

Classified By

De Filippi & Verany, 1857

Class

Ray-finned fishes (Actinopterygii)

Order

Halosaurs and deep-sea Spiny eels (Notacanthiformes)

Family

Deep-sea spiny eels (Notacanthidae)

Distribution

Region

Eastern Atlantic

Distribution

Eastern Atlantic: Baffin Bay-Davis Strait Offshore, Ireland to South Africa, including the Mediterranean Sea. Reported from Iceland (Ref. 12462). Western Atlantic: Davis Strait to Cape Hatteras, North Carolina in the USA.

Range

74°N - 35°S, 76°W - 36°E

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

500 m

Depth To - meters

2800 m

Zone

bathydemersal

Environment

Marine; bathydemersal; depth range 500 - 2800 m (Ref. 6594)

Trophic Level

3.49 s.e. 0.42 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

9.5 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5630 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

Unknown

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated