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🌊 Marine Least Concern 🌡️ Tropical

Slender fusilier

Gymnocaesio gymnoptera Bleeker, 1856
Max Length
18 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
0–500 m
Climate
Tropical
Resilience
High
Vulnerability
42.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Inhabits coastal areas around coral reefs . Feeds on zooplankton in large midwater aggregations. Forms schools with members of the genus Pterocaesio. Oviparous, with numerous, small pelagic eggs . Often mistaken for juveniles and easily overlooked because of small size . Also caught with drive-in nets. Utilized as tuna bait fish .

Scientific Name
Gymnocaesio gymnoptera
Authority
Bleeker, 1856
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
18 cm
Depth Range
0–500 m
Latitude
30°S – 31°N
Trophic Level
3.4
Resilience
High
Vulnerability
42.00/100
Migration
Non-migratory
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 10 - 11; Dorsal soft rays (total): 14 - 16; Anal spines: 3; Anal soft rays: 11 - 13. : fusiform / normal; Cross section: compressed.

🌀 Behaviour

Behavioural data for Slender fusilier is currently being reviewed.

🦐 Diet

Diet information for Slender fusilier is currently being compiled.

🥚 Reproduction

Reproduction data for Slender fusilier is currently being compiled.

🌍 Habitat & Distribution

Marine; reef-associated; non-migratory; depth range 0 - 500 m . Tropical; 31°N - 30°S, 32°E - 177°W West Pacific: Red Sea and East Africa to Fiji, north to the Philippines.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Migration
Non-migratory
Trophic Level
3.4±0.45
🐠 Schooling
Food Items

zooplankton in large midwater aggregations

📐 Morphometrics

Length–Weight Relationship: W = 0.01175 × L3.08 (TL)
Max TL
18cm
Dorsal Spines
11
Dorsal Rays
15
Anal Spines
3
Anal Rays
12

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2015

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
42.00/100
Moderate vulnerability
Trophic Level
3.4
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Latitude Range
31°N – 30°S
Described By
Bleeker, 1856

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Caesio gymnopterus Bleeker 1856 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 4 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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