Environment: milieu / climate zone / نطاق العمق / distribution range
البيئة
; المياه العذبة قاعية التغذية و المعيشة. Tropical
Africa: widely distributed from the Cross River up to the Chiloango basin, including the Mungo, Wouri, Sanaga, Nyong, Kribi, Ntem, Ogowé and Nyanga; also known from the Dja (middle Congo River basin) and from Tibesti (Chad)(Ref. 81639).
الحجم / وزن / العمر
النضج: Lm ? range ? - ? cm
Max length : 43.5 cm TL ذكر/ مختلط الجنس; (Ref. 2801)
الأشواك الظهرية (المجموع) : 1; الأشعة الظهرية الناعمة (المجموع) : 10 - 13; أشعه شرجية لينه: 8 - 9. Diagnosis: mouth inferior (Ref. 81639). Lips normally well developed, lower lip continuous (Ref. 81282, 81639). Geographical variations in mouth form: soft or “rubbery” versus keratinised (Ref. 2940, 81282). Two pairs of well-developed barbels; barbels long, posterior barbel reaching to or beyond posterior margin of eye (Ref. 81639). Scale formula 4.5/26-30/4.5 (Ref. 2940, 81282) or 4.5-5.5/26-33/3.5-4.5/2-3 (Ref. 81639). 2-3 (Ref. 81639) or 3 (Ref. 2940, 81282) scales between lateral line and pelvic-fin base. 12 scales around caudal peduncle (Ref. 2940, 81282, 81639). 8-9 (Ref. 2940, 81282) or 8-10 (Ref. 81639) dorsal fin branched rays. Last simple dorsal ray ossified and as long as or shorter than head in specimens over 150 mm SL (Ref. 2940, 81282) or measuring 0.67x HL (Ref. 81639).
Body shape (shape guide): fusiform / normal.
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
Lévêque, C. and J. Daget, 1984. Cyprinidae. p. 217-342. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 2801)
IUCN Red List Status (Ref. 130435: Version 2025-1)
استخدامات بشرية
مصائد: غير ذات اهمية
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=0.00955 (0.00430 - 0.02123), b=3.02 (2.84 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
مستوى غذائي (مرجع
69278): 3.2 ±0.5 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 (34 of 100).
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