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Eupercaria/misc (Various families in series Eupercaria) >
Sparidae (Porgies)
Etymology: Polysteganus: Greek, polys = a lot of + Greek, stego, stege = covered (Ref. 45335).
Environment: milieu / climate zone / نطاق العمق / distribution range
البيئة
بحري مرتبطة بالشعاب. Subtropical
Southwestern Indian Ocean: Mozambique and South Africa.
الحجم / وزن / العمر
النضج: Lm ? range ? - ? cm
Max length : 32.0 cm SL ذكر/ مختلط الجنس; (Ref. 106993)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
الأشواك الظهرية (المجموع) : 12; الأشعة الظهرية الناعمة (المجموع) : 10; شوكة شرجية: 3; أشعه شرجية لينه: 8. This species is distinguished from its by the following set of characters: scale rows above lateral line 7½ and between 5th dorsal-fin spine base and lateral-line 5½; pored lateral-line scales 53-55; suborbital depth obviously less than or subequal to orbit diameter; dorsal-fin rays reddish pink or orangish red but with deep yellow upper margin of dorsal-fin rays; distinct irregular lines of blue spots on body 7 or 8 (often present even in preserved specimens); pale reddish yellow membranes on caudal-fin lobes and caudal fin with hyaline white margin on lower fin lobe; without blue iridescence on dorsal and lateral side of whitish pink body; canines are somewhat smaller, only upper canines visible when mouth closed; slender body, 40-43% (mean 42%) of SL; without bony bulge before and above eye even in larger specimens of over 25 cm TL; caudal fin is moderately forked (Ref. 106993).
Body shape (shape guide): fusiform / normal; Cross section: flattened.
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
Iwatsuki, Y. and P.C. Heemstra, 2015. Redescriptions of Polysteganus coeruleopunctatus (Klunzinger 1870) and P. lineopunctatus (Boulenger 1903), with two new species from Western Indian Ocean. Zootaxa 4059(1):133-150. (Ref. 106993)
IUCN Red List Status (Ref. 130435: Version 2025-1)
استخدامات بشرية
مصائد: bycatch
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (مرجع
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01259 (0.00609 - 0.02604), b=3.03 (2.86 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
مستوى غذائي (مرجع
69278): 4.0 ±0.7 se; based on size and trophs of closest relatives
المرونه (مرجع
120179): وسيط, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 1.4-4.4 سنة (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (29 of 100).
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