Stoplight loosejaw (Malacosteus niger) fish species and information / pictures of Stoplight loosejaw - Malacosteus niger

Stoplight loosejaw (Malacosteus niger) fish species information

Scientific Name
Malacosteus niger

Common Name
Stoplight loosejaw

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 17-21; Anal spines: 0; Anal soft rays: 18 - 24; Vertebrae: 47 - 51. This species possess the following characters: in male, postorbital photophore (PO) 5.8-11.9% upper jaw length (UJL), 1.5-3.1% SL; female PO 2.8-8.1% UJL, 0.8-11.9% SL; IP photophores 3-5 in 3-5 clusters (Ref. 78501).

Classification

Classified By

Ayres, 1848

Class

Ray-finned fishes (Actinopterygii)

Order

Lightfishes and Dragonfishes (Stomiiformes)

Family

Barbeled dragonfishes (Stomiidae)

Distribution

Region

Worldwide in all oceans from Arctic latitudes at 66?N to approx. 30?S in the southern hemisphere; unknown in the Mediterranean.

Distribution

Worldwide in all oceans from Arctic latitudes at 66?N to approx. 30?S in the southern hemisphere; unknown in the Mediterranean.

Range

66°N - 34°S

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

500 m

Depth To - meters

3886 m

Zone

bathyalpelagic

Environment

Marine; bathypelagic; depth range 500 - 3886 m (Ref. 50610)

Trophic Level

3.72 s.e. 0.58 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

25.6 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: of no interest

Vulnerability

Low to moderate vulnerability (29 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