Bluehead wrasse (Thalassoma amblycephalus) is a saltwater species recorded in Hong Kong. It is mainly found over reef, at depths of 0–15 m.
Scientific name: Thalassoma amblycephalus · Water: Saltwater
Size: up to 16.5 cm
The bluehead wrasse is a labrid that gathers over shallow lagoons, seaward reefs and reef flats, from 0 to 15 m and usually from 1 to 15 m, in water of 24 to 28°C. It feeds mainly on crustacean plankton and spawns at dusk above the reef. It is of no interest to fisheries but is sold commercially for aquariums, and it is rarely marketed. Maximum length is about 16.5 cm standard length. Trophic level is 3.1, fishing vulnerability low to moderate at 28 of 100, and resilience high. IUCN lists it as least concern.
Back to home · Hong Kong · Species library