Classification / Names
Common names from other countries
Size / Weight / Age
Max length : 40.0 cm TL male/unsexed; (Ref. 9710); common length : 30.0 cm TL male/unsexed; (Ref. 9813)
Length at first maturity
Lm ?, range 24 - ? cm
Marine; reef-associated; depth range 1 - 40 m (Ref. 1602)
Climate / Range
Tropical, preferred ?; 30°N - 25°S, 92°E - 160°W
Western Pacific: fringe of the eastern sector of the Indian Ocean, Cocos (Keeling) Islands, Australia, Indonesia, Singapore, Gulf of Thailand, South China Sea, Philippines, Taiwan, Ryukyu Islands, Ogasawara Islands, Mariana Islands, Palau (Belau), Caroline Islands, Kapingamarangi Islands, Nauru and Niue. The species is replaced by its sibling, Siganus stellatus, in the Andaman Sea and regions which are located further west.
Countries | FAO areas | Ecosystems | Occurrences | Introductions
soft rays: 9;
Vertebrae: 13. Color pattern changes with age; iris silver with 8-10 orange spots. Juveniles with a deep brown patch straddling the lateral line; the spot becoming obscured with increase in size. Stout, venomous spines not so pungent. Preopercular angle 87°-105°. Strong scales fully cover the cheeks. Midline of thorax scaled but not pelvic ridges.
IUCN Red List Status (Ref. 90363)
Estimates of some properties based on models
Phylogenetic diversity index
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)
2.0 ±0.00 se; Based on food items.
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)
Low vulnerability (24 of 100)