|
Triso dermopterus (Temminck & Schlegel, 1842) Oval grouper |
|
|
photo by
Lai, N.-W. |
| Family: | Epinephelidae (Groupers) | |||
| Max. size: | 68 cm TL (male/unsexed) | |||
| Environment: | demersal; marine; depth range 22 - 103 m | |||
| Distribution: | Western Pacific: Korea, Japan, Taiwan, Hong Kong, China, off eastern Australia (between 25°S-32°S), and off the coast of Western Australia (south of 19°30'S). | |||
| Diagnosis: | Dorsal spines (total): 11-11; Dorsal soft rays (total): 18-21; Anal spines: 3-3; Anal soft rays: 9-12. Distinguished by the following characteristics: dark brown or violet-black body color, darker fins; oval body, compressed, depth contained 2.4-2.7 times in the standard length; head length 3.0-3.4 times in SL; distinctly convex dorsal head profile; nostrils subequal in juveniles, diameter of posterior nostrils twice that of anterior nostrils in 56 cm SL adults; small mouth, oblique, pair of short canines at front of each premaxilla (Ref. 89707). | |||
| Biology: | An anti-tropical species. Occurs on rocky or soft (silty-sand or mud) bottoms. The young have been observed to feed on zooplankton in the water column; feeding of adults has not yet been discovered. | |||
| IUCN Red List Status: | Least Concern (LC); Date assessed: 06 April 2017 Ref. (130435) | |||
| Threat to humans: | harmless | |||