Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce demersal; pH range: 6.8 - 7.8. Tropical; 23°C - 27°C (Ref. 12468)
Africa: Southern Ghana and southern Nigeria (Lagos and Bénoué basin) (Ref. 2880, 81279). Also recorded in Sanaga River basin, Cameroon (Ref. 52331).
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Max length : 25.0 cm TL macho/indeterminado; (Ref. 31256); peso máx. Publicado: 300.00 g (Ref. 3799)
Espinhos anais: 0; Raios anais moles: 16 - 18. Diagnosis: parietal fontanella absent in adults and porelinke in juveniles, disappearing with growth; snout long, comprised three times in head length; dorsal-fin origin distincly behind pelvic-fin insertions; head broad; adults large-sized; no sexual dimorphism affecting anal-fin shape in adult males; body depth less than three times in the standard length in adults; 8-12 teeth in outer premaxillary row; 4.5 scales above lateral line; 21-23 lateral line scales; 13-15 anal fin branched rays; 18-20 gill rakers on lower part of first branchial arch (Ref. 2880, 81279).
Affinities: B. macrocephalus
Life cycle and mating behavior
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
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)
Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2024-1)
Ameaça para o homem
Harmless
Utilização humana
Pescarias: pouco comercial
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da internet
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=0.01122 (0.00496 - 0.02540), b=3.01 (2.83 - 3.19), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 2.9 ±0.4 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (15 of 100).
