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🌊 Marine Least Concern 🌡️ Tropical

Sixbar wrasse

Thalassoma hardwicke Bennett, 1830
Max Length
25 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
0–15 m
Climate
Tropical
Resilience
High
Vulnerability
16.00/100
Typical Length
15 cm
Depth Zone
reef

📖 Overview

Occurs in shallow lagoon and seaward reefs, slopes and along drop-offs to moderate depths. Occurs in small, loose groups . Feeds on benthic and planktonic crustaceans, small fishes, and foraminiferans.

Scientific Name
Thalassoma hardwicke
Authority
Bennett, 1830
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
25 cm
Depth Range
0–15 m
Latitude
32°S – 30°N
Trophic Level
3.5
Resilience
High
Vulnerability
16.00/100
Migration
Non-migratory
Water Temp
24–28 °C
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 8; Dorsal soft rays (total): 12 - 14; Anal spines: 3; Anal soft rays: 11. Color pattern remains similar with growth with terminal males becoming gaudier than primary males . Pale green with 6 dark bars, last two as saddles over the tail. Head with pink bands radiating from eye in large adults .: fusiform / normal; Cross section: compressed.

🌀 Behaviour

Behavioural data for Sixbar wrasse is currently being reviewed.

🦐 Diet

Diet information for Sixbar wrasse is currently being compiled.

🥚 Reproduction

🐣 Oviparous
Size at Maturity
8.5cm TL

Oviparous, distinct pairing during breeding .

🌍 Habitat & Distribution

Marine; reef-associated; non-migratory; depth range 0 - 15 m , usually 0 - 15 m . Tropical; 24°C - 28°C ; 30°N - 32°S East Africa to the Line and Tuamoto islands, north to southern Japan, south to the Lord Howe and Austral islands.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Migration
Non-migratory
Trophic Level
3.5±0.37
Food Items

benthic and planktonic crustaceans, small fishes, and foraminiferans

📐 Morphometrics

Length–Weight Relationship: W = 0.00977 × L3.05 (TL)
Max TL
25cm
Dorsal Spines
8
Dorsal Rays
13
Anal Spines
3
Anal Rays
11

🌡️ Water Parameters & Tolerance

Temperature Range
24–28°C
Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2008

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
16.00/100
Low vulnerability
Trophic Level
3.5
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Latitude Range
30°N – 32°S
Described By
Bennett, 1830

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Halichoeres iris Seale 1910 Synonym
Julis dorsalis Quoy & Gaimard 1834 Synonym
Julis erythropterus Valenciennes 1839 Synonym
Julis prostigma Kuhl & van Hasselt 1839 Synonym
Julis schwanenfeldii Bleeker 1853 Synonym
Julis semifasciatus Valenciennes 1839 Synonym
Julis urostigma Bleeker 1853 Synonym
Labrus pulcherrimus Forster 1839 Synonym
Labrus quindecimaculeatus Lacepède 1801 Synonym
Sparus hardwicke Bennett 1830 Synonym
Thalassoma hardwichei Bennett 1830 Synonym
Thalassoma hardwickei Bennett 1830 Synonym
Thalassoma schwanefeldi Bleeker 1853 Synonym
Thalassoma schwanenfeldii Bleeker 1853 Synonym
Thalassoma schwaneveldi Bleeker 1853 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 34 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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