Environment: milieu / climate zone / depth range / distribution range
البيئة
; المياه العذبة القاع; pH range: 6.3 - 7.2; dH range: 10 - 18. Tropical; 20°C - 24°C (Ref. 2059); 8°N - 4°N
Africa: lower Niger, Niger delta and Oshun River in Nigeria (Ref. 57128). Also reported from the Mono River basin in Togo (Ref. 3045, 57128).
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 9.0 cm TL ذكر/ مختلط الجنس; (Ref. 57128)
الأشواك الظهرية (المجموع) : 1; الأشعة الظهرية الناعمة (المجموع) : 6; شوكة شرجية: 2; أشعه شرجية لينه: 9. Diagnosis: pectoral-fin tips reaching to pelvic-fin bases; pelvic-fin insertions located on a vertical line from last dorsal-fin ray: snout length less than 55% of head length; posterior nostrils large, separated from orbits by a bony crest; humeral process blunt; branchiostegal membrane broadly notched ventrally; width of occipital process comprised 3.2 times in its length (Ref. 57128).
Phractura species are often associated with the vegetation of flowing waters (Ref. 57128).
Life cycle and mating behavior
Maturities | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae
Skelton, P.H., L.M. Risch and D. Paugy, 2003. Amphiliidae. p. 117-143 In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douce et saumâtres de l'Afrique de l'Ouest, Tome 2. Coll. Faune et Flore tropicales 40. Musée Royal de l'Afrique Centrale, Tervuren, Belgique, Museum National d'Histoire Naturalle, Paris, France and Institut de Recherche pour le Développement, Paris, France. 815 p. (Ref. 57128)
IUCN Red List Status (Ref. 130435)
في خطر (EN) (B2ab(i,ii,iii,iv)); Date assessed: 14 August 2019
استخدامات بشرية
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.1 ±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 vulnerability (10 of 100).
