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🌊 Marine Least Concern 🍽️ Edible 🌡️ Tropical

Threespot grouper

Epinephelus trimaculatus Valenciennes, 1828
Max Length
50 cm
Max Weight
-
Lifespan
-
Trophic Level
4
Depth
0–30 m
Climate
Tropical
Resilience
Medium
Vulnerability
41.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Juveniles are common in tide pools and in shallow clear water around rocks and coral reefs; adults found in deeper water. Kuo et al. (1988, Ref. 6826) induced sex reversal and artificial spawning (referred to as 'Epinephelus fario').

Scientific Name
Epinephelus trimaculatus
Authority
Valenciennes, 1828
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
50 cm
Depth Range
0–30 m
Trophic Level
4
Resilience
Medium
Vulnerability
41.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 11; Dorsal soft rays (total): 16 - 17; Anal spines: 3; Anal soft rays: 8. Preopercle rounded; serrae mostly hidden by skin; upper edge of operculum straight; nostrils small, subequal; maxilla reaches to or beyond vertical at rear edge of the eye. Area behind pectoral-fin tip with a patch of ctenoid scales in juveniles. Color is pale brown with small red or reddish brown spots. Fins darker, also covered with spots and often with a narrow white edge. A black blotch is at the base of the last 3 dorsal-fin spines, a smaller blotch at the base of the middle dorsal-fin rays, and a third on top of the caudal peduncle. Distinguished further by the following characteristics: body depth contained 2.7-3.3 times in SL; head length 2.4-2.6 times in SL; slightly convex interorbital area; small anterior and posterior nostrils, subequal; maxilla reaches to or past vertical at rear edge of eye; 2 rows of teeth on midlateral part of lower jaw .: fusiform / normal; Cross section: compressed.

🌀 Behaviour

Behavioural data for Threespot grouper is currently being reviewed.

🦐 Diet

Diet information for Threespot grouper is currently being compiled.

🥚 Reproduction

Reproduction data for Threespot grouper is currently being compiled.

🌍 Habitat & Distribution

Marine; reef-associated; depth range 0 - 30 m . Tropical; 37°N - 20°N, 112°E - 143°E Northwest Pacific: southern Japan, Korea, Taiwan, and China.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
4±0.66

📐 Morphometrics

Length–Weight Relationship: W = 0.01148 × L3.04 (TL)
Max TL
50cm
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
Medium
Minimum doubling time
Fishing Vulnerability
41.00/100
Moderate vulnerability
Trophic Level
4
Apex / Top predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Valenciennes, 1828

🍽️ Edibility & Flavour

"Threespot grouper is an edible species."

✗ Not for Raw
✓ Fresh Indicators
  • Clear, bright eyes — cloudy eyes indicate age
  • Firm flesh that springs back when pressed
  • Fresh ocean smell, never strong or ammonia-like
  • Bright red or pink gills, not grey or brown
  • Shiny, moist skin with scales tightly attached
✗ Avoid If
  • Cloudy or sunken eyes
  • Strong fishy or ammonia odour
  • Soft, mushy flesh that doesn't spring back
  • Discoloured or dry flesh
Best Cooking Methods
Baking Grilling Pan-frying

Nutrition

Per 100g cooked - Source: USDA FoodData Central

Nutrient Amount
Protein 18.6 g
Omega-3 (total) 117 mg

🔬 Mercury Safety

Mercury data for Threespot grouper has not yet been assigned. Please consult FDA/EPA guidance for general seafood safety advice.

🌿 Sustainability

Best Choice
Healthy stocks, low impact
Good Alternative
Well-managed, minor concerns
Use Caution
Check sourcing and season
Avoid
Overfished or high impact

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Black-saddled Grouper · Brown Marbled Grouper · Threespot Grouper · threespot gouper
🇫🇷French Merou Trois Taches
🇯🇵Japanese Nominokuchi · ノミノクチ
🇵🇹Portuguese Garoupa-de-três-manchas
🇪🇸Spanish Mero Tres Manchas
🌍VIE Ca mu song
🇨🇳Chinese 三斑石斑魚 · 石斑 · 紅皮鱠 · 過魚 · 鮭點石斑魚

Scientific Synonyms

Scientific Name Author Year Status
Serranus ara Temminck & Schlegel 1842 Synonym
Serranus trimaculatus Valenciennes 1828 Synonym
Serranus ura Valenciennes 1828 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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