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🌊 Marine Least Concern 🍽️ Edible 🌡️ Tropical

Largefin croaker

Johnius macropterus Bleeker, 1853
Max Length
25 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
1–30 m
Climate
Tropical
Resilience
High
Vulnerability
23.00/100
Typical Length
18 cm
Depth Zone
demersal

📖 Overview

Found in shallow coastal waters. Feeds on benthic worms and small crustaceans. Sold fresh and dried salted in markets.

Scientific Name
Johnius macropterus
Authority
Bleeker, 1853
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
25 cm
Depth Range
1–30 m
Trophic Level
3.3
Resilience
High
Vulnerability
23.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 11; Dorsal soft rays (total): 29 - 34; Anal spines: 2; Anal soft rays: 7. : fusiform / normal.

🌀 Behaviour

Behavioural data for Largefin croaker is currently being reviewed.

🦐 Diet

Diet information for Largefin croaker is currently being compiled.

🥚 Reproduction

Reproduction data for Largefin croaker is currently being compiled.

🌍 Habitat & Distribution

Marine; demersal; depth range 1 - 30 m. Tropical West Pacific: India and Sri Lanka eastward to Thailand and Malaysia and south to New Guinea.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.3±0.4
Food Items

benthic worms and small crustaceans

📐 Morphometrics

Length–Weight Relationship: W = 0.00891 × L3.07 (TL)
Max TL
25cm
Dorsal Spines
11
Dorsal Rays
32
Anal Spines
2
Anal Rays
7

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2016

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
23.00/100
Low vulnerability
Trophic Level
3.3
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Bleeker, 1853

🍽️ Edibility & Flavour

"Johnius Macropterus 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

Detailed nutritional data for Largefin croaker is currently being compiled from USDA FoodData Central.

🔬 Mercury Safety

Mercury data for Largefin croaker 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

👥 Community & Contribute

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