Polynesian longfinned eel (Anguilla megastoma) fish species and information / pictures of Polynesian longfinned eel - Anguilla megastoma

Polynesian longfinned eel (Anguilla megastoma) fish species information

Scientific Name
Anguilla megastoma

Common Name
Polynesian longfinned eel

Biology
Vertebrae: 110 - 114. The only species that can be either variegated or plain-colored. Mottled individuals most closely resemble Anguilla celebensis and A. interioris in having broad, undivided tooth bands, but their ranges do not overlap. Plain-colored individuals most closely resemble A. japonica and A. borneensis, but those species both geographically distant. A. obscura is also plain-colored but has a shorter dorsal fin (Ref. 9828). The skin is grey to yellowish and more or less spotted with brown or black. It can be sometimes uniformly brownish red on the flanks and the back. The belly is white. Young specimens are grey and do not have spots (Ref.48622).

Classification

Classified By

Kaup, 1856

Class

Ray-finned fishes (Actinopterygii)

Order

Eels and Morays (Anguilliformes)

Family

Freshwater eels (Anguillidae)

Distribution

Region

Pacific Ocean

Distribution

Pacific Ocean: Sulawesi, Indonesia to the Society Islands. Also recorded from Pitcairn (Ref. 9828).

Range

1°S - 25°S

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

demersal

Environment

Marine; freshwater; brackish; demersal; catadromous (Ref. 51243)

Trophic Level

3.71 s.e. 0.59 Based on size and trophs of closest relatives

Occurs in Marine / Salt water

True

Occurs in Brackish water

True

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

100.0 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

Fisheries: commercial

Vulnerability

High to very high vulnerability (72 of 100)

Resilience

Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated