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🌊 Marine Least Concern 🍽️ Edible ⚡ Reports of ciguatera poisoning 🌡️ Tropical

Orange-spotted emperor

Lethrinus erythracanthus Valenciennes, 1830
Max Length
70 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
15–120 m
Climate
Tropical
Resilience
Medium
Vulnerability
46.00/100
Typical Length
50 cm
Depth Zone
reef

📖 Overview

Occurs in deep lagoons and channels, outer reef slopes and adjacent soft bottom areas . Solitary in or near ledges or caves by day . Feeds on echinoderms, crustaceans, mollusks , echinoids, crinoids and starfish . May be ciguatoxic in some areas . Caught by handline, vertical longline, traps, and trawls. Marketed mostly fresh .

Scientific Name
Lethrinus erythracanthus
Authority
Valenciennes, 1830
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
70 cm
Depth Range
15–120 m
Latitude
23°S – 30°N
Trophic Level
3.4
Resilience
Medium
Vulnerability
46.00/100
Migration
Non-migratory
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 10; Dorsal soft rays (total): 9; Anal spines: 3; Anal soft rays: 8. The largest species of Lethrinus distinguished by the following characters: body moderately deep, its depth 2.5-2.7 times in standard length (SL); head length 0.9-1 times in body depth, 2.5-2.8 times in SL; dorsal profile near eye nearly straight or slightly convex; snout moderately short, its length about 1.8-2.4 times in HL, measured without the lip the snout is 0.8-1.1 times in cheek height, its dorsal profile distinctly concave in large individuals and nearly straight in smaller individuals, snout angle relative to upper jaw between 55° and 69°; interorbital space convex; posterior nostril an oblong longitudinal opening, closer to orbit than anterior nostril; eye situated close to or far removed from dorsal profile, its length 2.7-5.2 times in HL; cheek moderately high, its height 2-3.4 times in HL; lateral teeth in jaws conical; outer surface of maxilla smooth or with a longitudinal ridge; D X,9 with 4th or 5th dorsal-fin spine the longest, its length 2.5-3.5 times in body depth; A III,8 with the 3rd, 4th or 5th soft ray usually the longest, its length much longer than length of base of soft-rayed portion of anal fin and 0.8-1.1 times in length of entire anal-fin base; pectoral-fin rays 13; pelvic-fin membranes between rays closest to body with or without dense melanophores; cheek without scales; 46-48 lateral-line scales; 4 ½ scale rows between lateral line and base of middle dorsal-fin spines; 15-18 scale rows in transverse series between origin of anal fin and lateral line; usually 15 rows in lower series of scales around caudal peduncle; 5-8 scales in supratemporal patch; inner surface of pectoral-fin base densely covered with scales; posterior angle of operculum fully scaly. Colour of body brown to dark grey, with indistinct scattered small dark and light spots, with irregular light stripes sometimes on lower sides; head brown or grey, often with many small orange spots on cheeks; pectoral and pelvic fins white to orangish, dorsal and anal fins mottled orange and bluish; caudal fin often bright orange .: fusiform / normal; Cross section: oval.

🌀 Behaviour

Behavioural data for Orange-spotted emperor is currently being reviewed.

🦐 Diet

This fish is carnivorous and is a bottom-feeder. It is known to eat such animals as starfishes, mollusks, crinoids, echinoids, echinoderms, and crustaceans.

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

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

🌍 Habitat & Distribution

Marine; reef-associated; non-migratory; depth range 15 - 120 m . Tropical; 30°N - 23°S East Africa to the Society and Tuamoto islands, north to the Ryukyu Islands, south to northeastern Australia.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Migration
Non-migratory
Trophic Level
3.4±0.41
🧍 Solitary
Food Items

echinoderms, crustaceans, mollusks (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.01445 × L3.02 (TL)
Max TL
70cm
Dorsal Spines
10
Dorsal Rays
9
Anal Spines
3
Anal Rays
8

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2015

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
46.00/100
Moderate-High vulnerability
Trophic Level
3.4
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Latitude Range
30°N – 23°S
Described By
Valenciennes, 1830

🍽️ Edibility & Flavour

"Orange-spotted emperor 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 20 g
Omega-3 (total) 124 mg

🔬 Mercury Safety

Mercury data for Orange-spotted 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
- - -

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Lethrinus cinnabarinus Richardson 1843 Synonym
Lethrinus kallopterus Bleeker 1856 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 3 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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