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🌊 Marine 🌡️ Tropical

Rapanui seabass

Acanthistius fuscus Regan, 1913
Max Length
40 cm
Max Weight
-
Lifespan
-
Trophic Level
4
Depth
-
Climate
Tropical
Resilience
Medium
Vulnerability
37.00/100
Typical Length
-
Depth Zone
pelagic

📖 Overview

Rapanui seabass (Acanthistius fuscus), first described by Regan, 1913 is a large fish in the family Anthiadidae (order Perciformes). Adults typically reach 40.00 cm in maximum length. It inhabits marine coastal and open-ocean environments. It occurs in Tropical waters. Diet is predominantly piscivorous, targeting other fish and larger prey.

Scientific Name
Acanthistius fuscus
Authority
Regan, 1913
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
Max Length
40 cm
Trophic Level
4
Resilience
Medium
Vulnerability
37.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 13; Dorsal soft rays (total): 14 - 15; Anal soft rays: 8 - 9. : fusiform / normal.

🌀 Behaviour

Behavioural data for Rapanui seabass is currently being reviewed.

🦐 Diet

small fish
crustaceans
cephalopods

🥚 Reproduction

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

🌍 Habitat & Distribution

Marine; pelagic-neritic. Tropical; 26°S - 29°S, 110°W - 107°W Southeast Pacific: Easter Island and Sala y Gómez.

🌿 Ecology

Zone Preferences
🌊 Marine 🐟 Pelagic
Trophic Level
4±0.7

📐 Morphometrics

Length–Weight Relationship: W = 0.01413 × L3 (TL)
Max TL
40cm
Dorsal Spines
13
Dorsal Rays
15
Anal Rays
9

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
37.00/100
Moderate vulnerability
Trophic Level
4
Apex / Top predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Regan, 1913

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