Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
marien rifbewoner; diepte 1 - 40 m (Ref. 1602). Tropical; 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.
Lengte bij maturiteit / Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?, range 24 - ? cm
Max length : 40.0 cm TL mannelijk / geslacht onbekend; (Ref. 9710); common length : 30.0 cm TL mannelijk / geslacht onbekend; (Ref. 9813)
Dorsale stekels (totaal) : 13; Dorsale zachte stralen (totaal) : 10; Anale stekels: 7; Anale zachte stralen: 9; Wervels: 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.
Body shape (shape guide): short and / or deep; Cross section: compressed.
Occurs in clear lagoons and seaward reefs. Juveniles live in schools of up to about 50 fish with pairing commencing as small as 15 cm, but fish may still be schooling at 22 cm SL; older fish live in pairs. Feeds on benthic algae (Ref. 9813). Adults on deep coastal reefs, juveniles in shallow estuaries (Ref. 48637).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Spawn in pairs. Spawning occurs around either new or full moons or both (Ref. 37816).
Woodland, D.J., 1990. Revision of the fish family Siganidae with descriptions of two new species and comments on distribution and biology. Indo-Pac. Fish. (19):136 p. (Ref. 1419)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gebruik door de mens
Visserij: commercieel
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Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01445 (0.01124 - 0.01859), b=3.07 (3.02 - 3.12), in cm total length, based on LWR estimates for this species (Ref. 93245). |
Trofisch niveau (Ref. 69278) |
2.0 ±0.00 se; based on food items. |
Weerstandsvermogen (Ref. 120179) |
Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.). |
Kwetsbaarheid van de visserij (Ref. 59153) |
Low to moderate vulnerability (26 of 100). 🛈 |
Prijsklasse (Ref. 80766) |
High.
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Voedingsstoffen (Ref. 124155) |
Calcium = 32.8 [15.9, 75.0] mg/100g; Iron = 0.648 [0.309, 1.495] mg/100g; Protein = 18.5 [17.0, 20.0] %; Omega3 = 0.101 [0.051, 0.202] g/100g; Selenium = 24.1 [9.7, 61.1] μg/100g; VitaminA = 28.4 [6.6, 118.1] μg/100g; Zinc = 1.27 [0.50, 2.68] mg/100g (wet weight); |