Thalassoma jansenii, Bali, Indonesia, Photo: Ian Shaw
Thalassoma jansenii, Raja Ampat, Indonesia, Photo: Andrew Green
Pectoral fins proportionally shorter than in T. nigrofasciatum, and juveniles with more light bars (often 5-6). Otherwise difficult to distinguish within the overlapping range in eastern Australia.
Max Size: 20 cm
Sea Temperature Range: 19.8-31.3°C
Habitat: Coral Reef
IUCN Threat Status: Least Concern
Occurrence: Frequent (13% of sites)
Occurrence describes how often the species is found on surveys within its distribution.
It is calculated as the % of reef sites surveyed by RLS divers across all the ecoregions in which the species has been observed
Abundance: Several (6 per transect)
Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
Edit by: RD Stuart-Smith, GJ Edgar, AJ Green, IV Shaw. 2015. Tropical Marine Fishes of Australia. Reed New Holland