Bivalve pearlfish (Onuxodon margaritiferae) fish species and information / pictures of Bivalve pearlfish - Onuxodon margaritiferae

Bivalve pearlfish (Onuxodon margaritiferae) fish species information

Scientific Name
Onuxodon margaritiferae

Common Name
Bivalve pearlfish

Biology
Eel-like, shallow to moderate body depth; adults small, less than 100 mm, trunk compressed; 1 to several large symphyseal fangs on premaxilla and dentary; anterior swim bladder modified into 'rockerbone'; predorsal bone present; pectoral fin rays supported by numerous small distal radials (Ref. 34024). Precaudal vertebrae 18-20; relatively short and deep bodied (Ref. 34024).

Classification

Classified By

Rendahl, 1921

Class

Ray-finned fishes (Actinopterygii)

Order

Cusk eels (Ophidiiformes)

Family

Pearlfishes (Carapidae)

Distribution

Region

Eastern Indian Ocean

Distribution

Eastern Indian Ocean: restricted to western Australia.

Range

28°N - 23°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

reef-associated

Environment

Marine; reef-associated

Trophic Level

3.31 s.e. 0.41 Based on food items.

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

True

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

10.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.6250 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

Low vulnerability (10 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