Scientific Name
Thalassoma lutescens

Common Name
Yellow-brown wrasse

Biology
Dorsal spines (total): 8; Dorsal soft rays (total): 13-14; Anal spines: 3; Anal soft rays: 11. Body without longitudinal stripes. Initial phase body yellow with light vertical red lines. Terminal phase body abruptly blue to blue-green behind pink and green head. Reddish vertical lines on body. Pectoral fins yellow on basal half, blue to black distally (Ref 9823).

Classification

Classified By

Lay & Bennett, 1839

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Wrasses (Labridae)

Distribution

Region

Indo-Pacific

Distribution

Indo-Pacific: Sri Lanka to Ducie Island, north to southern Japan and the Hawaiian Islands, south to southeastern Australia, Lord Howe Island, the Kermadec Islands, and Rapa. Replaced by Thalassoma grammaticum in the tropical eastern Pacific (Ref. 37816).

Range

30°N - 32°S

Environment

Climate

Subtropical

Water Temperature From

24 °C

Water Temperature To

28 °C

Depth From - meters

1 m

Depth To - meters

30 m

Zone

reef-associated

Environment

Marine; reef-associated; depth range 1 - 30 m (Ref. 1602), usually 1 - 30 m (Ref. 27115)

Trophic Level

3.43 s.e. 0.54 Based on diet studies.

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

True

Is kept in Aquariums

True

Physical Size and Genetics

Maximum Length

30.0 cm

Common Length

Unknown 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: minor commercial; aquarium: commercial

Vulnerability

Moderate vulnerability (35 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)