Threadfin pearl-perch (Glaucosoma magnificum) fish species and information / pictures of Threadfin pearl-perch - Glaucosoma magnificum

Threadfin pearl-perch (Glaucosoma magnificum) fish species information

Scientific Name
Glaucosoma magnificum

Common Name
Threadfin pearl-perch

Biology
Dorsal spines (total): 8; Dorsal soft rays (total): 14; Anal spines: 3; Anal soft rays: 12. Three dark vertical bands from nape, the first through eye, the second along the edge of the preopercle and the third down to the base of the pectoral fins; Dorsal fin with 8 spines increasing in length from a small anterior spine to a long posterior one; soft dorsal rays 14, much higher than spinous part and with the anterior ray produced into a short filament, the third ray prolonged into a long simple filament which extends past the caudal fin and the fourth and fifth rays also extended to beyond the hypural joint; anal fin with 3 slender spines and 12 soft rays, the second ray prolonged beyond the caudal fin and the third ray almost as long in small specimens.

Classification

Classified By
Ogilby, 1915
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Pearl perches (Glaucosomatidae)

Distribution

Region
Western Pacific
Distribution
Western Pacific: northern Australia. Almost certainly present in southern Papua New Guinea.
Range
9°S - 21°S

Environment

Climate
Tropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
Unknown m
Depth To - meters
Unknown m
Zone
benthopelagic
Environment
Marine; benthopelagic, usually 8 - 10 m (Ref. 27621)
Trophic Level
4.07 s.e. 0.48 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
32.0 cm
Common Length
20.0 cm
Phylogenetic Diversity Index
PD50 = 0.6250 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries: minor commercial
Vulnerability
Moderate vulnerability (36 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