Blue-spotted large-eye bream (Gymnocranius microdon) fish species and information / pictures of Blue-spotted large-eye bream - Gymnocranius microdon

Blue-spotted large-eye bream (Gymnocranius microdon) fish species information

Scientific Name
Gymnocranius microdon

Common Name
Blue-spotted large-eye bream

Biology
Dorsal spines (total): 10; Dorsal soft rays (total): 9-10; Anal spines: 3; Anal soft rays: 9 - 10. Eye is large, its diameter about equal to the width of preorbital and interorbital spaces. The mouth is relatively small. The posterior part of the jaws reaches to about the level of the nostril openings. Overall color is silvery to brownish. Scale borders have a narrow brown border. Numerous vertically elongate blue spots are on the snout and cheek and sometimes on the operculum. Fins are clear to yellow or reddish, caudal fin sometimes dusky brown. Juveniles with a mostly vertical banded pattern (Ref. 48635).

Classification

Classified By
Bleeker, 1851
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Emperors or scavengers (Lethrinidae)

Distribution

Region
Indo-West Pacific
Distribution
Indo-West Pacific: known only from southern Japan, the South China Sea, the Marshall Islands, and off Phuket, Thailand in the Andaman Sea.
Range
37°N - 10°S

Environment

Climate
Tropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
20 m
Depth To - meters
50 m
Zone
reef-associated
Environment
Marine; reef-associated; non-migratory; depth range 20 - 50 m (Ref. 2295)
Trophic Level
3.39 s.e. 0.41 Based on food items.
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
45.0 cm
Common Length
35.0 cm
Phylogenetic Diversity Index
PD50 = 0.5039 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