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🌊 Marine Data Deficient 🌡️ Tropical

Tonga grouper

Epinephelus chlorocephalus Valenciennes, 1830
Max Length
17.1 cm
Max Weight
-
Lifespan
-
Trophic Level
3.6
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
27.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Nothing is known of its habitat and biology . Absence of additional specimens is puzzling. The only specimen was obtained from the natives of Tongatapu by J. Quoy and P. Gaimard during the expedition of J. Dumont d'Urville, 1826-1829.

Scientific Name
Epinephelus chlorocephalus
Authority
Valenciennes, 1830
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
DD
Max Length
17.1 cm
Trophic Level
3.6
Resilience
High
Vulnerability
27.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 11; Dorsal soft rays (total): 17; Anal spines: 3; Anal soft rays: 8. Distinguished by the following characteristics: dorsal part of head and snout green; cheeks pale green; body greenish with 7-8 alternating stripes of greenish brown and yellow-orange; dorsal and anal fins greenish, spotted with reddish brown at base; paired fins light greenish without spots; caudal fin greenish with faint reddish bars; body depth 3.4 times in SL; head length 2.6 times in SL; pointed head; interorbital area flat; dorsal profile of head slightly convex; subangular preopercle;, 5 distinctly enlarged serrae at the angle; straight upper edge of operculum; maxilla not reaching past vertical at rear edge of eye; 2 rows of teeth in midlateral part of lower jaw; caudal fin rounded; ctenoid lateral body scales .: fusiform / normal; Cross section: compressed.

🌀 Behaviour

Behavioural data for Tonga grouper is currently being reviewed.

🦐 Diet

Diet information for Tonga grouper is currently being compiled.

🥚 Reproduction

Reproduction data for Tonga grouper is currently being compiled.

🌍 Habitat & Distribution

Marine; demersal. Tropical; 20°S - 23°S, 177°W - 174°W Central Pacific: known only from Tonga.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.6±0.6

📐 Morphometrics

Length–Weight Relationship: W = 0.01148 × L3.04 (TL)
Max TL
17.1cm
Dorsal Spines
11
Dorsal Rays
17
Anal Spines
3
Anal Rays
8

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2016

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
27.00/100
Low vulnerability
Trophic Level
3.6
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Valenciennes, 1830

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