Identification:
The body is slightly elongated and strongly compressed laterally. The first dorsal spine is large, located above the eye socket, with multiple rows of small spines anterior to it. The second dorsal spine is very small, concealed under the dorsal groove behind the base of the first dorsal fin. The pelvic spines are large and strong. Pelvic fins are absent. The body and caudal fin are blue; the anterior part of the head has vertical red stripes, while the posterior part of the head, body, and caudal fin have red spots. The dorsal and anal fins are pale pink.
Biology and Ecology:
This species inhabits coral reefs, coexisting with other coral reef fish species, and exhibits slow swimming behavior.
Distribution:
- Vietnam: Truong Sa Archipelago, Khanh Hoa province.
- Global: Philippines, Mauritius, Indonesia, Australia, Guam, Fiji, Samoa, New Caledonia, New Hebrides, Melanesia, East Africa, India.
Value:
This species holds scientific significance. It has no value as food but is highly valued as an ornamental fish.
Conservation Status:
Prior to 1995, this fish was frequently observed in the waters off Nha Trang. However, in recent years, it has become relatively rare. This decline is likely due to intensive harvesting for commercial purposes. The use of explosives and toxic chemicals in fishing has also contributed to habitat loss and environmental pollution, which has led to the depletion of the species.
Assessment:
VU (Vulnerable) – A1d B2b,e.
Conservation Measures:
Public education is needed to raise awareness about the importance of protecting this rare fish. Any specimens caught should be released immediately if alive. Fishing and trade of this species should be prohibited.