Environment: milieu / climate zone / depth range / distribution range
البيئة
; المياه العذبة محيطي; سمكة نهرية (Ref. 51243). Tropical; 22°C - 27°C (Ref. 12468)
Africa: basins of the Volta, Niger (Bénoué), Senegal, Gambia, Tominé (Corubal) and Casamance (Ref. 2880, 81279). Also reported from the Mono (Ref. 28663) and Géba (Ref. 13331) Rivers, and from the Niger delta (Ref. 88941).
Length at first maturity / الحجم / وزن / العمر
Maturity: Lm 6.5 range ? - ? cm
Max length : 13.3 cm TL ذكر/ مختلط الجنس; (Ref. 126422); أعلا وزن تم نشرة: 30.00 g (Ref. 126422)
شوكة شرجية: 0; أشعه شرجية لينه: 16 - 20. Diagnosis: parietal fontanel always present, also in adults, open; equal sized jaws; 5.5 scales above lateral line; 26-31 lateral line scales; 13-17 anal fin branched rays; 6/8 premaxillary teeth; 13-17 gill rakers on lower limb of first gill arch; gill rakers short (Ref. 2880, 81279).
Affinities: B. nurse, B. longipinnis and B. luteus.
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
Paugy, D., 1990. Characidae. p. 195-236. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douces et saumâtres de l'Afrique de l'Ouest. Tome I. Coll. Faune Tropicale n° XXVIII. Musée Royal de l'Afrique Centrale, Tervuren et O.R.S.T.O.M., Paris, 384 p. (Ref. 2880)
IUCN Red List Status (Ref. 130435: Version 2024-1)
استخدامات بشرية
مصائد: غير ذات اهمية
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00794 (0.00486 - 0.01299), b=2.95 (2.82 - 3.08), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.0 ±0.3 se; based on diet studies.
Generation time: 0.9 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
المرونه (Ref.
120179): عالي, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أقل من 15 شهر (K=1.20).
Fishing Vulnerability (Ref.
59153): Low vulnerability (12 of 100).
Nutrients (Ref.
124155): Calcium = 284 [110, 741] mg/100g; Iron = 2.99 [1.45, 7.03] mg/100g; Protein = 18.9 [16.8, 21.2] %; Omega3 = 0.609 [0.218, 1.751] g/100g; Selenium = 47.1 [17.8, 146.4] μg/100g; VitaminA = 42.2 [15.4, 115.9] μg/100g; Zinc = 2.88 [1.87, 4.31] mg/100g (wet weight);
