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