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