Australian dragonfish (Eustomias australensis) fish species and information / pictures of Australian dragonfish - Eustomias australensis

Australian dragonfish (Eustomias australensis) fish species information

Scientific Name
Eustomias australensis

Common Name
Australian dragonfish

Biology
Dorsal soft rays (total): 23; Anal soft rays: 36; Vertebrae: 67. Two terminal bulbs separated by a distance equal to the distal bulb length. Barbel 55% SL. Terminal filament longer than 9.4% SL with the tip broken. Distal bulb large, 1.6 times length of proximal bulb. Axis of stem pigmented, dark proximally, light distally. External chevron-shaped or roundish striated area on stem well pigmented. Middorsal paired spots between occiput and dorsal-fin origin 8 (Ref. 11333).

Classification

Classified By

Gibbs, Clarke & Gomon, 1983

Class

Ray-finned fishes (Actinopterygii)

Order

Lightfishes and Dragonfishes (Stomiiformes)

Family

Barbeled dragonfishes (Stomiidae)

Distribution

Region

Southwest Pacific

Distribution

Southwest Pacific: Endemic to New South Wales, Australia.

Range

Unknown

Environment

Climate

Temperate

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

500 m

Zone

bathyalpelagic

Environment

Marine; bathypelagic; depth range 0 - 500 m (Ref. 11333)

Trophic Level

3.94 s.e. 0.71 Based on size and trophs of closest relatives

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

8.7 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 vulnerability (15 of 100)

Resilience

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated