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🌊 Marine Least Concern 🌡️ Tropical

Spotcheek emperor

Lethrinus rubrioperculatus Sato, 1978
Max Length
57 cm
Max Weight
3.1 kg
Lifespan
-
Trophic Level
3.8
Depth
10–198 m
Climate
Tropical
Resilience
Medium
Vulnerability
33.00/100
Typical Length
30 cm
Depth Zone
reef

📖 Overview

Found over sand and rubble areas of outer reef slopes . Feeds mainly on crustaceans, fish, echinoderms and mollusks . In New Caledonia, spawning peaks are observed in December and a fairly high percentage of gonads in advanced stages of maturity occurs between October and February . Caught mostly by handline, trap, and trawl. Marketed mostly fresh. An excellent food fish .

Scientific Name
Lethrinus rubrioperculatus
Authority
Sato, 1978
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
57 cm
Max Weight
3.1 kg
Depth Range
10–198 m
Latitude
31°S – 38°N
Trophic Level
3.8
Resilience
Medium
Vulnerability
33.00/100
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. This species is distinguished by the following characters: body moderately elongate, its depth 3-3.4 times in standard length; head length 1.1-1.3 times in body depth, 2.6-3 times in SL, dorsal profile near eye convex without a distinct hump; snout length 1.8-2.1 times in HL, measured without the lip the snout is 0.7-0.9 times in cheek height, its dorsal profile nearly straight or slightly concave, snout angle relative to upper jaw between 54° and 65°; interorbital space flat or slightly convex; posterior nostril a longitudinal oblong opening, closer to orbit than anterior nostril; eye situated close or slightly removed from dorsal profile, its length 3.9-4.7 times in HL; cheek height 2.4-3.3 times in HL; lateral teeth in jaws conical; outer surface of maxilla smooth or with a longitudinal ridge; D X,9 with the 3rd dorsal-fin spine the longest, its length 2.4-2.7 times in body depth; A III,8 with the first soft ray usually the longest, its length shorter than length of base of soft-rayed portion of anal fin and 1.4-1.8 times in length of entire anal-fin base; pectoral-fin rays 13; pelvic-fin membranes between rays closest to body without dense melanophores; cheek without scales; 47-49 lateral-line scales; 4 ½ scale rows between lateral line and base of middle dorsal-fin spines; 15-16 scale rows in transverse series between origin of anal fin and lateral line; usually 15 rows in lower series of scales around caudal peduncle; 7-10 scales in supratemporal patch; inner surface of pectoral-fin base without scales; posterior angle of operculum with a wide scaleless area. Colour of body olive grey or brown, with scattered irregular small black blotches; lips and a spot on upper edge of operculum usually red; fins pale or pinkish .: fusiform / normal; Cross section: oval.

🌀 Behaviour

Behavioural data for Spotcheek emperor is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Size at Maturity
23cm TL

Oviparous . Also Ref. 103751.

🌍 Habitat & Distribution

Marine; reef-associated; non-migratory; depth range 10 - 198 m . Tropical; 38°N - 31°S, 30°E - 139°W East Africa to south Korea in the Yellow Sea, and the Marquesas Islands.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Migration
Non-migratory
Trophic Level
3.8
Food Items

crustaceans, fish, echinoderms and mollusks (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.01413 × L2.97 (TL)
Max TL
57cm
Max Weight
3,100g
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
33.00/100
Low vulnerability
Trophic Level
3.8
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Latitude Range
38°N – 31°S
Described By
Sato, 1978

🗺️ 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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