Southern stoplight loosejaw (Malacosteus australis) fish species and information / pictures of Southern stoplight loosejaw - Malacosteus australis

Southern stoplight loosejaw (Malacosteus australis) fish species information

Scientific Name
Malacosteus australis

Common Name
Southern stoplight loosejaw

Biology
Dorsal soft rays (total): 16-21; Anal soft rays: 18 - 23; Vertebrae: 45 - 51. This species possess the following characters: in male, postorbital photophore (PO) 3.7-6.4% upper jaw length (UJL), 0.9-1.7% SL; female PO 2.5-4.4% UJL, 0.6-1.2% SL; IP photophores 5-7 in 3-7 clusters (Ref. 78501).

Classification

Classified By

Kenaley, 2007

Class

Ray-finned fishes (Actinopterygii)

Order

Lightfishes and Dragonfishes (Stomiiformes)

Family

Barbeled dragonfishes (Stomiidae)

Distribution

Region

Circumglobal

Distribution

Circumglobal: subtropical and temperate waters of the southern hemisphere, 25?-45?S and equatorial Indian Ocean and Indo-Australasian Archipelago.

Range

25°S - 45°S

Environment

Climate

Subtropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

500 m

Depth To - meters

2000 m

Zone

demersal

Environment

Marine; demersal; depth range 500 - 2000 m (Ref. 78501)

Trophic Level

4.07 s.e. 0.67 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

16.6 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.7500 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries:

Vulnerability

Low to moderate vulnerability (29 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