Bulbless dragonfish (Photonectes caerulescens) fish species and information / pictures of Bulbless dragonfish - Photonectes caerulescens

Bulbless dragonfish (Photonectes caerulescens) fish species information

Scientific Name
Photonectes caerulescens

Common Name
Bulbless dragonfish

Biology
Dorsal soft rays (total): 18; Anal soft rays: 21. Dorsal and anal rays conspicuous, not covered with thick skin. Barbel short, without distinct bulb. Presence of midventral blue luminous band (Ref. 37473).

Classification

Classified By
Regan & Trewavas, 1930
Class
Ray-finned fishes (Actinopterygii)
Order
Lightfishes and Dragonfishes (Stomiiformes)
Family
Barbeled dragonfishes (Stomiidae)

Distribution

Region
Eastern Atlantic
Distribution
Eastern Atlantic: a single record at 6?N 25?W. Western Atlantic: Caribbean Sea and southern parts. Also known from the Indian and Pacific Oceans.
Range
40°N - 35°S, 95°W - 150°W

Environment

Climate
Deep-water
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
100 m
Depth To - meters
2000 m
Zone
bathyalpelagic
Environment
Marine; bathypelagic; depth range 100 - 2000 m
Trophic Level
3.88 s.e. 0.66 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
15.0 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 (25 of 100)
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tmax>3)
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated