Actinopterygii (peixes com raios nas barbatanas)
(Catfish) > Schilbeidae
Etymology: Siluranodon: Greek, silouros = a cat fish + Greek, odous = teeth (Ref. 45335); auritus: From the Latin "auritu" (literally "listening"), referring to the local Arabian name of this species in Egypt, "schilbe oudney", which means "schilbe with ear" (those "ears" probably refer to the large rounded pectoral fins just behind the head)(Ref. 43912).
Environment: milieu / climate zone / depth range / distribution range
; Água doce demersal; potamódromo (Ref. 51243). Tropical; 35°N - 5°N
Africa: Chad, Niger, Volta, Comoe (Ref. 57127) and Nile (Ref. 3570).
Length at first maturity / Tamanho / Peso / Idade
Maturity: Lm ?, range 9 - ? cm
Max length : 14.0 cm SL macho/indeterminado; (Ref. 57127)
Morfologia | Morfometria
Espinhos dorsais (total): 0; Raios dorsais moles (total): 5; Espinhos anais 0; Raios anais moles: 67 - 87. Diagnosis: 67-87 anal-fin rays; 49-60 thin and flexible gill rakers on lower limb of first gill arch; 4 pairs of well developed barbels; small, spineless dorsal fin with 4-5 branched rays; jaws and palatine bones entirely without teeth (Ref. 43912, 57127).
Pelagic, occurs large and moderate lakes and rivers (Ref. 43912). In the Sudd, they occur beneath fringing Eichornia (Ref. 28714). Microphagous, feeding mainly on algae and occasionally rotifers, planktonic and benthic crustaceans, immature insects (Ref. 43912) and mud/debris (Ref. 28714, 43912). Probably reproduces during the floods, migrating from lakes to rivers; howver in Lake Kainji fish were reported to migrate from the river to the Lake to spawn (Ref. 43912). Oviparous, eggs are unguarded (Ref. 205). Max. reported total length 175 mm (Ref. 3570, 43912). Might locally represent an important species for fisheries since it is sometimes extremely abundant, but this may be negated by its small size (Ref. 43912).
Distinct pairing (Ref. 205).
De Vos, L., 1995. A systematic revision of the African Schilbeidae (Teleostei, Siluriformes). With an annotated bibliography. Ann. Mus. R. Afr. Centr., Sci. Zool., 271:1-450. (Ref. 43912)
Categoria na Lista Vermelha da IUCN (Ref. 120744)
CITES (Ref. 118484)
Ameaça para o homem
ColaboradoresFotografiasStamps, Coins Misc.SonsCiguateraVelocidadeTipo de nataçãoÁrea branquialOutras referênciasCérebrosVisão
Fontes da internet
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00646 (0.00336 - 0.01242), b=2.99 (2.82 - 3.16), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Nível Trófico (Ref. 69278
): 2.9 ±0.34 se; Based on food items.
Resiliência (Ref. 120179
): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Vulnerabilidade (Ref. 59153
): Low to moderate vulnerability (26 of 100) .