Robust coralbrotula (Diancistrus robustus) fish species and information / pictures of Robust coralbrotula - Diancistrus robustus

Robust coralbrotula (Diancistrus robustus) fish species information

Scientific Name
Diancistrus robustus

Common Name
Robust coralbrotula

Biology
Dorsal soft rays (total): 77; Anal soft rays: 63; Vertebrae: 43. The species is characterized by the following: vertebrae 11+32=43, dorsal fin rays 77, anal fin rays 63; very small eyes (1.8% SL); outer pseudoclasper with short, small ear-lobe extension, opening towards anterior; inner pseudoclasper firmly joined to outer pseudoclasper anteriorly, with supporter, forming a robust thorn, almost as long as outer pseudoclasper; narrow scale patch on cheek, no scales on operculum; the head profile is massive (width 16.6% SL) with blunt snout (Ref. 57884).

Classification

Classified By
Schwarzhans, M?ller & Nielsen, 2005
Class
Ray-finned fishes (Actinopterygii)
Order
Cusk eels (Ophidiiformes)
Family
Viviparous brotulas (Bythitidae)

Distribution

Region
Central Pacific
Distribution
Central Pacific: Viti Levu Island, Fiji.
Range
Unknown

Environment

Climate
Tropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
0 m
Depth To - meters
8 m
Zone
reef-associated
Environment
Marine; reef-associated; depth range 0 - 8 m (Ref. 57884)
Trophic Level
3.19 s.e. 0.51 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
True
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
5.2 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 (10 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