Halfnaked jawfish (Opistognathus seminudus) fish species and information / pictures of Halfnaked jawfish - Opistognathus seminudus

Halfnaked jawfish (Opistognathus seminudus) fish species information

Scientific Name
Opistognathus seminudus

Common Name
Halfnaked jawfish

Biology
Dorsal spines (total): 10 - 11; Dorsal soft rays (total): 14-16; Anal spines: 2; Anal soft rays: 14 - 15; Vertebrae: 28 - 29. This species is distinguished by the following set of characters: D XI (exceptionally X), 14-16; about 28-36 oblique scale rows in longitudinal series on body; no scales anterolaterally forward of verticals from ultimate spine to 2nd segmented dorsal-fin ray; conspicuous ocellus between spines 2-5 of dorsal fin; 1-3 vomerine teeth (Ref. 76827).

Classification

Classified By
Smith-Vaniz, 2004
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Jawfishes (Opistognathidae)

Distribution

Region
Western Pacific
Distribution
Western Pacific: Australia.
Range
Unknown

Environment

Climate
Tropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
0 m
Depth To - meters
22 m
Zone
demersal
Environment
Marine; demersal; depth range 0 - 22 m (Ref. 76827)
Trophic Level
3.45 s.e. 0.53 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
8.6 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
Unknown
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated