Scientific Name
Gymnocaesio gymnoptera

Common Name
Slender fusilier

Biology
Dorsal spines (total): 10 - 11; Dorsal soft rays (total): 14-16; Anal spines: 3; Anal soft rays: 11 - 13. Body bluish green dorsally; center of scales lighter, giving a striped appearance. Tips of caudal lobes black. Usually 4 scales on cheek; usually 23-26 predorsal scales; dorsal and anal fins without scales. Upper peduncular scale rows usually 11 (11-12); lower peduncular scale rows usually 14 or 15 (13-15). Post maxillary with 2 processes; posterior end of maxilla tapered. Unlike the species of Caesio and Pterocaesio, the anterior profile of the 1st anal pterygiophore is without a pronounced distal convexity.

Classification

Classified By

Bleeker, 1856

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Fusiliers (Caesionidae)

Distribution

Region

Indo-West Pacific

Distribution

Indo-West Pacific: Red Sea and East Africa to Fiji, north to the Philippines.

Range

31°N - 19°S, 32°E - 177°W

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

500 m

Zone

reef-associated

Environment

Marine; reef-associated; non-migratory; depth range 0 - 500 m (Ref. 402)

Trophic Level

3.4 s.e. 0.45 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

18.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 1.0000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: minor commercial; bait: usually

Vulnerability

Low vulnerability (14 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