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Siluriformes (Catfishes) >
Schilbeidae (Schilbid catfishes)
Etymology: mandibularis: From the Latin "mandibula" (lower jaw), probably referring to the rather well developed outer mandibular barbels (Ref. 43912).
More on author: Günther.
البيئة: الوسط / المنطقة المناخية / نطاق العمق / نطاق التوزيع
البيئة
; المياه العذبة; مياه مخلوطة القاع; سمكة نهرية (Ref. 51243). Tropical; 8°N - 5°N
Africa: St. Paul River in Liberia up to the Pra in Ghana, including the rivers St. John, Farmington, Cess/Nipoué, Cavally, San Pedro, Sassandra, Boubo, Bandama, Agnébi, Comoé and Tano Rivers (Ref. 57127). Reports from the Ouémé River in Benin and the Volta basin need confirmation; reports from the Congo basin and Wouri River (Cameroon) are based on misidentified specimens of other species (Ref. 43912).
الطول عند النضج الأول / الحجم / وزن / العمر
النضج: Lm 14.8, range 19 - ? cm
Max length : 50.0 cm TL ذكر/ مختلط الجنس; (Ref. 43912)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
الأشواك الظهرية (المجموع) : 1. Diagnosis: large species, up to 300 mm SL or more (Ref. 57127). Anterior nostrils never closer to each other than the posterior ones; inner margin of pectoral-fin spine finely denticulate; 39-70 branched anal-fin rays; 8-15 gill rakers on lower limb of first gill arch; adipose fin always present (Ref. 43912, 57127). Lower jaw reaching as far as or a little shorter than upper jaw; brownish longitudinal stripes along sides and anal fin (Ref. 43912).
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Found in riverine and lacustrine conditions; prefers freshwater but has also been recorded from brackish water lagoons in mixohaline water; voracious and carnivorous (Ref. 43912). Feed mainly on (terrestrial) insects (Ref. 6868, 43912) and fish, but also fruits, amphibians, small rodents and Arachnida have been found in stomachs (Ref. 43912). Oviparous, eggs are unguarded (Ref. 205).
Distinct pairing (Ref. 205).
De Vos, L., 1986. Schilbeidae. p. 36-53. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 3570)
حالة القائمة الحمراء للاتحاد الدولي لحفظ الطبيعة والموارد الطبيعية (Ref. 130435: Version 2025-2 (Global))
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مؤشر التنوع الشُعبي الوراثي (مرجع
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00631 (0.00379 - 0.01051), b=3.12 (2.98 - 3.26), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
مستوى غذائي (مرجع
69278): 3.4 ±0.49 se; based on food items.
Generation time: 2.4 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
المرونه (مرجع
120179): عالي, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أقل من 15 شهر (Assuming fec > 10,000).
ضعف الصيد (Ref.
59153): Low to moderate vulnerability (29 of 100).
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