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Speckled blue grouper

Epinephelus cyanopodus Richardson, 1846
Max Length
122 cm
Max Weight
17.3 kg
Lifespan
-
Trophic Level
4.1
Depth
2–150 m
Climate
Tropical
Resilience
Very low
Vulnerability
70.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Usually found around isolated coral heads in lagoons or bays, but also caught on outer reef area. According to Myers (1989, Ref. 4538) it usually swims out in the open, several meters above the bottom. It is readily caught by anglers at night. Feeds mainly on sand-dwelling fishes and crustaceans such as snake eels and box crabs. In Hong Kong live fish markets .

Scientific Name
Epinephelus cyanopodus
Authority
Richardson, 1846
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
122 cm
Max Weight
17.3 kg
Depth Range
2–150 m
Latitude
36°S – 34°N
Trophic Level
4.1
Resilience
Very low
Vulnerability
70.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 11; Dorsal soft rays (total): 16 - 17; Anal spines: 3; Anal soft rays: 8. Juveniles are mostly yellow becoming gray with dark spots anteriorly. The gray area increases with increasing size until only the fins remain yellow on individuals of 15 to 20 cm . : fusiform / normal; Cross section: compressed.

🌀 Behaviour

Behavioural data for Speckled blue grouper 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; reef-associated; depth range 2 - 150 m . Tropical; 34°N - 36°S, 99°E - 174°W east to Fiji and the islands of Micronesia.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
4.1±0.5
Food Items

sand-dwelling fishes and crustaceans such as snake eels and box crabs

📐 Morphometrics

Length–Weight Relationship: W = 0.01122 × L3.05 (TL)
Max TL
122cm
Max Weight
17,300g
Dorsal Spines
11
Dorsal Rays
17
Anal Spines
3
Anal Rays
8

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2016

📊 Population Risk & Fisheries

Population Resilience
Very low
Minimum doubling time
Fishing Vulnerability
70.00/100
High vulnerability
Trophic Level
4.1
Apex / Top predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Latitude Range
34°N – 36°S
Described By
Richardson, 1846

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