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Siluriformes (Catfishes) >
Bagridae (Bagrid catfishes)
Etymology: Bagrus: Mozarabic, bagre, taken from Greek, pagros = a fish (Dentex sp.) (Ref. 45335).
More on author: Boulenger.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce demersal. Tropical; 3°S - 5°S
Africa: River Pangani (Tanzania)(Ref. 3236) and Lake Chiuta (Ref. 46841).
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Max length : 44.7 cm TL macho/indeterminado; (Ref. 52249)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
Espinhos dorsais (total) : 1; Raios dorsais (total) : 9 - 10; Raios anais : 13 - 14. Head much depressed, smooth above or finely striated on sides of elongate fontanelle; premaxillary band of teeth 5-6 times as long as broad, nearly as broad as the band of vomerine teeth; snout truncate (Ref. 2988). Snout projecting beyond lower jaw (Ref. 52162, Ref. 2988). Maxillary barbel 1.66-2 times head length, reaching pelvics (Ref. 52162), but not passing the base of the pelvics (Ref. 1884). Nasal barbel 1/5-1/3 of head length; inner mandibular barbel 0.33-0.4 times head length (Ref. 2988). Outer mandibular barbel 0.60-0.66 times head length (Ref. 52162, Ref. 2988). Occipital processus long and narrow, almost reaching the interneural (Ref. 52249). Last ray of dorsal fin above vertical of first ray of pelvics; dorsal spine smooth, feeble; adipose fin 4-5.5 times as long as deep, about twice as long as dorsal fin; caudal fin deeply forked, with pointed lobes (Ref. 2988). Upper lobe of caudal fin with short filament (Ref. 52249). Pectoral spine moderately strong, smooth, or very slightly serrated behind (Ref. 2988).
Coloration: brown or olive above, white beneath; black dots sometimes scattered on the back and on the adipose and caudal fins (Ref. 2988).
Present in the deeper waters of large rivers (Ref. 4967).
Ciclo de vida ou comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Risch, L.M., 1986. Bagridae. p. 2-35. 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. 3236)
Status na Lista Vermelha da UICN (Ref. 130435: Version 2024-1)
Ameaça para os humanos
Harmless
Uso pelos humanos
Pescarias: espécies comerciais
Ferramentas
Relatórios especiais
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Fontes da internet
Estimates based on models
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00871 (0.00408 - 0.01859), b=2.94 (2.76 - 3.12), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.8 ±0.9 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Assuming Fec>10,000).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (35 of 100).
