Thumbprint emperor (Lethrinus harak) fish species and information / pictures of Thumbprint emperor - Lethrinus harak

Thumbprint emperor (Lethrinus harak) fish species information

Scientific Name
Lethrinus harak

Common Name
Thumbprint emperor

Biology
Dorsal spines (total): 10; Dorsal soft rays (total): 9; Anal spines: 3; Anal soft rays: 8. Mouth slightly protractile; lips thick and fleshy. Inner base of pectorals densely covered with scales. Color is olive-green dorsally, paler ventrally; scales on back sometimes with white center. A large elliptical blotch, often broadly edged in yellow, on side directly below lateral line and centered at a vertical near the posterior tip of the pectoral fin. Sometimes light blue dots border the lower rime of the eye and around the nostrils. The pectoral, pelvic, dorsal and anal fins are white to pinkish. The caudal fin is orange or reddish. The vertical fins are sometimes lightly mottled or stripped.

Classification

Classified By
Forssk?l, 1775
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Emperors or scavengers (Lethrinidae)

Distribution

Region
Indo-West Pacific
Distribution
Indo-West Pacific: Red Sea and East Africa to Samoa, north to southern Japan, south to northeastern Australia.
Range
32°N - 22°S

Environment

Climate
Tropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
Unknown m
Depth To - meters
20 m
Zone
reef-associated
Environment
Marine; brackish; reef-associated; non-migratory; depth range ? - 20 m (Ref. 9710)
Trophic Level
3.56 s.e. 0.60 Based on diet studies.
Occurs in Marine / Salt water
True
Occurs in Brackish water
True
Occurs in Fresh Water
False
Occurs on Reefs
True
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
50.0 cm
Common Length
30.0 cm
Phylogenetic Diversity Index
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries: commercial
Vulnerability
Low to moderate vulnerability (29 of 100)
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (K=0.45-0.49; tmax=15)
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated