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Cypriniformes (Carps) >
Cyprinidae (Minnows or carps) > Torinae
Eponymy: Lieutenant-Colonel José Augusto Alves Roçadas (1865–1926) was Governor of Macau (1908–1909) and Governor-General of Angola (1909–1910), having served previously as a district governor (1905–1908). [...] (Ref. 128868), visit book page.
More on author: Boulenger.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water benthopelagisch. Tropical
Africa: known from the Nyong in Cameroon (Ref. 81639), and rivers Luculla (Ref. 1869) and Quanza (Ref. 1869, 120641) in Angola. Also reported, as Labeobarbus cf. rocadasi, from the lower Congo (Ref. 94750); needs confirmation.
Grootte / Gewicht / Leeftijd
Maturity: Lm ?  range ? - ? cm
Max length : 35.0 cm TL mannelijk / geslacht onbekend; (Ref. 2801)
Dorsale stekels (totaal) : 1; Dorsale zachte stralen (totaal) : 10 - 13; Anale zachte stralen: 8. Diagnosis: mouth inferior, lips moderately developed, lower lip continuous; two pairs of well-developed barbels, anterior pair shorter than posterior pair, which are as long as or longer than eye diameter; last simple ray of dorsal fin very strong and ossified, not serrated, measuring 0.6-1 times head length; lower jaw not reaching to anterior margin of eye; 30-35 scales in lateral line (Ref. 81639).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Lévêque, C. and J. Daget, 1984. Cyprinidae. p. 217-342. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 2801)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-2)
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: van geen belang
Tools
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00427 (0.00195 - 0.00935), b=3.11 (2.90 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.2 ±0.5 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (25 of 100).