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Acanthuriformes (Surgeonfishes) >
Ephippidae (Spadefishes, batfishes and scats)
Etymology: Proteracanthus: Greek, proteros = former + Greek, akantha = thorn (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
البيئة
بحري; مياه مخلوطة مرتبطة بالشعاب. Tropical
Western Central Pacific: Malaya, Sumatra and Borneo.
الحجم / وزن / العمر
Maturity: Lm ?  range ? - ? cm
Max length : 32.5 cm SL ذكر/ مختلط الجنس; (Ref. 7050)
الأشواك الظهرية (المجموع) : 10; الأشعة الظهرية الناعمة (المجموع) : 14 - 16; شوكة شرجية: 3; أشعه شرجية لينه: 13 - 15. Greenish brown dorsally, paler on flanks, silvery below, the scales dark edged, forming dark longitudinal lines. Body oblong and compressed, its depth 1.9 to 2.1 times in SL. Head length 3.4 to 3.7 times in SL. Dorsal head profile evenly curved from snout to dorsal-fin origin. Mouth subterminal, the upper jaw not protrusible, projecting somewhat in front of lower jaw. Jaws with bands of slender, flattened, tricuspid teeth, the middle cusp slightly longer than lateral cusps. No teeth on vomer or palatines. Five pores on each side of lower jaw. Preopercle smooth except for a few weak, skin-covered serrae at the angle. Opercle ending in 2 blunt points. Branchiostegal membranes broadly joined to isthmus. First gill opening constricted. Hypobranchial connected to quadrate by skin (Ref 43039).
Life cycle and mating behavior
Maturities | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae
Kottelat, M., A.J. Whitten, S.N. Kartikasari and S. Wirjoatmodjo, 1993. Freshwater fishes of Western Indonesia and Sulawesi. Periplus Editions, Hong Kong. 221 p. (Ref. 7050)
IUCN Red List Status (Ref. 130435)
استخدامات بشرية
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Preferred temperature (Ref.
123201): 28 - 29.3, mean 28.8 °C (based on 1333 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.5 ±0.4 se; based on size and trophs of closest relatives
المرونه (Ref.
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 (30 of 100).