(Catfishes) > Schilbeidae
Etymology: grenfelli: Referring to the type locality of the species, Boma, Lower Zaire River (Ref. 43912).
More on author: Boulenger.
Environment: milieu / climate zone / depth range / distribution range
; Água doce demersal. Tropical; 23°C - 26°C (Ref. 12468); 5°N - 0°N
Africa: lower, middle and upper Congo River basin, including Pool Malebo (= Stanley Pool); Ogooué and Nyanga basins in Gabon; Ntem-Campo, Nyong and Lokoundje basins in Cameroon (Ref. 43912). Also in the Mitemboni River (Gabon-Equatorial Guinea border) and lower Nkomi River basin (Gabon)(Ref. 81643). Reports from the Lali River (upper Kouilou basin) in Republic of Congo or from the Chad basin are based on misidentified specimens; presence in the Ruzisi unlikely, based on a single specimen that is probably mislabelled (Ref. 43912).
Tamanho / Peso / Idade
Maturity: Lm ?  range ? - ? cm
Max length : 50.7 cm SL macho/indeterminado; (Ref. 81643)
Espinhos dorsais (total): 1. Diagnosis: adipose fin present (Ref. 43912, 81643) and fully developed (Ref. 81643). Anterior nostrils closer to each other than the posterior pair; nasal barbel not reaching beyond the posterior border of the eye; inner side of pectoral spine weakly serrated; snout reaching beyond lower jaw; head rounded (Ref. 43912, 81643).
Omnivorous or predominantly carnivorous, feeding on fruits, leaves, grains, insect larvae and nymphs, and small fish; very voracious; juveniles found in floodplains during the rainy season, often hidden under floating trunks of trees which seems a favorite place for juvenile Schilbe and numerous other fish larvae; active swimmer, especially during the night, probably resting near the bottom during daytime (Ref. 43912). Oviparous, eggs are unguarded (Ref. 205). Important species in fishery terms (Ref. 78218). Flesh of this fish very tasty, its price rather elevated (Ref. 43912).
Life cycle and mating behavior
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
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. 125652)
Ameaça para o homem
Pescarias: espécies comerciais
ReferênciasAquaculturaPerfil para aquaculturaEstirpesGenéticaFrequência dos alelosHereditariedadeDoençasProcessamentoNutrientsMass conversion
ColaboradoresFotografiasStamps, Coins Misc.SonsCiguateraVelocidadeTipo de nataçãoÁrea branquialOutras referênciasCérebrosVisão
Fontes da internet
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00366 - 0.01891), b=3.06 (2.87 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Nível Trófico (Ref. 69278
): 3.5 ±0.5 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
): Moderate vulnerability (45 of 100).
Nutrients (Ref. 124155
): Calcium = 124 [64, 246] mg/100g ; Iron = 1.07 [0.59, 1.84] mg/100g ; Protein = 16.6 [14.8, 18.3] % ; Omega3 = 0.301 [0.144, 0.611] g/100g ; Selenium = 70.5 [31.3, 165.7] μg/100g ; VitaminA = 35.8 [15.9, 90.7] μg/100g ; Zinc = 1.46 [1.04, 2.03] mg/100g (wet weight);