Environment: milieu / climate zone / depth range / distribution range
البيئة
; المياه العذبة قاعية التغذية و المعيشة. Tropical
Africa: present in Bafing River in the upper Senegal basin and known from the upper Niger in Guinea (Ref. 2940, 81282).
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 16.0 cm SL ذكر/ مختلط الجنس; (Ref. 2940)
الأشعة الظهرية الناعمة (المجموع) : 13; أشعه شرجية لينه: 8. Diagnosis: last simple dorsal ray ossified and as long as head in largest individuals, ossified at base, ossified portion shorter than head (60-85% of head length); lips poorly developed, without mental lobe; 9 dorsal fin branched rays; scale formula 3.5-4.5/23-26/4.5; 2 scales between lateral line and pelvic-fin base; 12 scales around caudal peduncle; 1-3/10-11 gill rakers on first gill arch (Ref. 2940, 81282).
Maximum TL was recorded at 20.5 cm (Ref. 2801). Affinities: sympatric with B. bynni occidentalis in Bafing and Upper Niger where they are easily distinguished by the # of scales or absence of the chin lobe. Compared to B. sacratus, B. petitjeani has less scales above the lateral line and a bit longer last simple dorsal-fin ray.
Life cycle and mating behavior
Maturities | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae
Lévêque, C., 1990. Cyprinidae. p. 269-361. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douces et saumâtres d'Afrique de l'Ouest. Tome I. Coll. Faune Tropicale n° XXVIII. Musée Royal de l'Afrique Centrale, Tervuren, and O.R.S.T.O.M., Paris, 384 p. (Ref. 2940)
IUCN Red List Status (Ref. 130435)
استخدامات بشرية
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=0.00933 (0.00422 - 0.02065), b=3.01 (2.82 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.2 ±0.5 se; based on size and trophs of closest relatives
المرونه (Ref.
120179): عالي, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أقل من 15 شهر (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
