Graceful dragonfish (Photonectes gracilis) fish species and information / pictures of Graceful dragonfish - Photonectes gracilis

Graceful dragonfish (Photonectes gracilis) fish species information

Scientific Name
Photonectes gracilis

Common Name
Graceful dragonfish

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 18; Anal spines: 0; Anal soft rays: 20. Membrane of dorsal and anal fins thin, rays clearly visible (Ref. 13608).

Classification

Classified By

Goode & Bean, 1896

Class

Ray-finned fishes (Actinopterygii)

Order

Lightfishes and Dragonfishes (Stomiiformes)

Family

Barbeled dragonfishes (Stomiidae)

Distribution

Region

Eastern Indian Ocean and Western Central Pacific

Distribution

Eastern Indian Ocean and Western Central Pacific: off Dampier, Western Australia and off Cape York, Queensland. Western Central Atlantic: off Martinique (Ref. 12965) and Suriname (Ref. 13608).

Range

Unknown

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

850 m

Zone

bathyalpelagic

Environment

Marine; bathypelagic; depth range ? - 850 m (Ref. 13608)

Trophic Level

4.02 s.e. 0.68 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

20.8 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 to moderate vulnerability (31 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