📖 Overview
Solitarily inhabits sand, rubble, and weed areas near corals in deep reefs. Feeds on crustaceans and small fishes. Gonads in spawning state have been observed in October. This species is not well represented in museums due to the relatively large capture size for most specimens . Also caught with handlines .
Scientific Name
Lethrinus conchyliatus
Body Shape
Fusiform / normal
🐟 Physical Description
Dorsal spines (total): 10; Dorsal soft rays (total): 9; Anal spines: 3; Anal soft rays: 8. : fusiform / normal; Cross section: oval.
🌀 Behaviour
Behavioural data for Redaxil emperor is currently being
reviewed.
🦐 Diet
small fish
crustaceans
cephalopods
🥚 Reproduction
🐣 Oviparous
📦 Batch Spawner
Spawning Season
spring-summer
🌍 Habitat & Distribution
Marine; reef-associated; non-migratory; depth range 5 - 220 m . Tropical; 14°N - 22°S Indian Ocean: Tanzania, northern Madagascar, Chagos, Andamans and southwestern Indonesia.
🌿 Ecology
Zone Preferences
🌊 Marine
🪸 Reef Associated
Food Items
crustaceans and small fishes
📐 Morphometrics
Length–Weight Relationship:
W = 0.01445 × L2.98
(TL)
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
IUCN Category
Least Concern
📊 Population Risk & Fisheries
Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
51.00/100
Moderate-High vulnerability
Trophic Level
4
Apex / Top predator
Body Shape
Fusiform / normal
Latitude Range
14°N
–
22°S
🍽️ Edibility & Flavour
"Lethrinus Conchyliatus 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 Redaxil emperor is
currently being compiled from USDA FoodData Central.
🔬 Mercury Safety
Mercury data for Redaxil emperor 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
✓ Sustainable Choice
🔬 Full Nutritional Profile
Per 100g - Raw, per 100g
- Source: USDA FoodData Central templates (generic fish average)
Proximate Composition
Energy125 kcal
Moisture75 %
Protein20 %
Total Fat4 %
Ash1.3 %
Fatty Acids (g)
Saturated Fat1 g
Monounsaturated Fat1.2 g
Polyunsaturated Fat1.5 g
Omega-3 Total1 g
EPA0.3 g
DHA0.5 g
Omega-6 Total0.3 g
Key Minerals & Vitamins
Calcium20 mg
Iron0.7 mg
Magnesium30 mg
Phosphorus220 mg
Potassium380 mg
Sodium55 mg
Zinc0.5 mg
Selenium32 µg
Vitamin B122 µg
📊 Population Dynamics
| Year |
Region |
Index |
Notes |
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