Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser riff-verbunden; tiefenbereich 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.
Länge bei der ersten Reifung / Größe / Gewicht / Alter
Geschlechtsreife: Lm ?, range 24 - ? cm
Max length : 40.0 cm TL Männchen/unbestimmt; (Ref. 9710); common length : 30.0 cm TL Männchen/unbestimmt; (Ref. 9813)
Rückenflossenstacheln (insgesamt) : 13; Rückenflossenweichstrahlen (insgesamt) : 10; Afterflossenstacheln: 7; Afterflossenweichstrahlen: 9; Wirbelzahl: 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).
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | 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)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2)
Nutzung durch Menschen
Fischereien: kommerziell
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Schätzungen auf der Grundlage von Modellen
Bevorzugte Temperatur (Ref.
123201): 24.7 - 29, mean 28 °C (based on 662 cells).
Phylogenetischer Diversitätsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01288 (0.00829 - 0.02001), b=3.15 (3.02 - 3.28), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Trophische Ebene (Ref.
69278): 2.0 ±0.00 se; based on food items.
Widerstandsfähigkeit (Ref.
120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).
Anfälligkeit der Fischerei (Ref.
59153): Low to moderate vulnerability (30 of 100).
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Nährstoffe (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);