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Acanthuriformes (Surgeonfishes) >
Siganidae (Rabbitfishes)
Etymology: Siganus: Latin, siganus = a fish, rabbit fish; by the similarity of the nose (Ref. 45335).
Environment: milieu / climate zone / نطاق العمق / distribution range
البيئة
بحري مرتبطة بالشعاب; نطاق العمق 2 - 15 m (Ref. 9813). Tropical
Eastern Central Pacific: endemic to Tonga, common only in the northernmost island group, Vavau.
الحجم / وزن / العمر
النضج: Lm ? range ? - ? cm
Max length : 22.0 cm TL ذكر/ مختلط الجنس; (Ref. 9813)
الأشواك الظهرية (المجموع) : 13; الأشعة الظهرية الناعمة (المجموع) : 10; شوكة شرجية: 7; أشعه شرجية لينه: 9; فقرات: 23. Fish looks black apart from the bright yellow pectoral fins; `vertical' margin of soft portion of dorsal fin and trailing edge of caudal fin orange. Preopercular angle 110°-111°; strong overlapping scales cover cheeks; 8-12 rows deep below center of orbit. Fully scaled midline of thorax. A very short tube, slightly taller posteriorly supports the anterior nostril opening. Caudal fin slightly incised.
Body shape (shape guide): short and / or deep; Cross section: compressed.
Prefers areas of staghorn or fire corals, or around rubble mounds composed of plate and staghorn corals. Subadults and adults in pairs, juveniles probably form schools. Feeds on seaweeds. Marketed fresh (Ref. 9813).
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
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 Red List Status (Ref. 130435: Version 2025-1)
استخدامات بشرية
مصائد: تجاري
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (مرجع
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01445 (0.00642 - 0.03257), b=3.07 (2.89 - 3.25), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
مستوى غذائي (مرجع
69278): 2.0 ±0.00 se; based on food items.
المرونه (مرجع
120179): عالي, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أقل من 15 شهر (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (12 of 100).
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Nutrients (Ref.
124155): Calcium = 54.2 [27.2, 133.8] mg/100g; Iron = 0.831 [0.390, 1.936] mg/100g; Protein = 18.5 [17.0, 20.0] %; Omega3 = 0.1 [0.1, 0.2] g/100g; Selenium = 20 [8, 49] μg/100g; VitaminA = 31.5 [7.3, 130.7] μg/100g; Zinc = 1.65 [0.64, 3.54] mg/100g (wet weight);
