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🌊 Marine Least Concern 🌡️ Tropical

Blackfringe Bigeye

Pristigenys refulgens Valenciennes, 1862
Max Length
27.4 cm
Max Weight
-
Lifespan
-
Trophic Level
3.9
Depth
80–100 m
Climate
Tropical
Resilience
High
Vulnerability
25.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Blackfringe Bigeye (Pristigenys refulgens), first described by Valenciennes, 1862 is a medium-sized fish in the family Priacanthidae (order Perciformes). Adults typically reach 27.40 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 80 to 100 metres. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. On the IUCN Red List, it is classified as Least Concern.

Scientific Name
Pristigenys refulgens
Authority
Valenciennes, 1862
Habitat
Marine
Climate
Tropical
Body Shape
Short and / or deep
IUCN Status
LC
Max Length
27.4 cm
Depth Range
80–100 m
Trophic Level
3.9
Resilience
High
Vulnerability
25.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 10; Dorsal soft rays (total): 10 - 12; Anal spines: 3; Anal soft rays: 10. Distinguished from its congeners by the following set of characters: D X,11; A III,10; total gill rakers on first arch 23-26, mode 24 (upper limb 6-9, lower 16-18); lateral-line scales 31-37, mode 33; body scales above pectoral fin with about 11-40 spinules on posterior margin, the number increasing with growth up to ca. 20 cm SL; rounded caudal fin in young and adults; colour of posterior soft portions of vertical fins hyaline reddish with black margins, width about 1/4 of pupil diameter in fresh specimens (usually distinct in preservation); 5 white or pale relatively narrow vertical bands on body, the third around 1/4-2/5 width of pupil, somewhat expanded dorsally and ventrally, and relatively vertical throughout, including dorsal and ventral extremities .: short and / or deep; Cross section: compressed.

🌀 Behaviour

Behavioural data for Blackfringe Bigeye is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; reef-associated; depth range 80 - 100 m . Tropical West Pacific: eastern coast of Africa; north to Japan; south to Indonesia.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.9±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.02239 × L2.93 (TL)
Max TL
27.4cm
Dorsal Spines
10
Dorsal Rays
11
Anal Spines
3
Anal Rays
10

🌡️ 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
25.00/100
Low vulnerability
Trophic Level
3.9
Predator
Body Shape
Short and / or deep
Climate Zone
Tropical
Described By
Valenciennes, 1862

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