>
Siluriformes (Catfishes) >
Schilbeidae (Schilbid catfishes)
Etymology: grenfelli: Named for the collector of the type specimen, Mr. G. Grenfel, Protestant missionary (Ref. 43912).
Eponymy: George Grenfell (1849–1906) was an explorer and a Baptist missionary in Cameroon (1875–1877) and the Congo Free State (Democratic Republic of the Congo) (1877–1906). [...] (Ref. 128868), visit book page.
More on author: Boulenger.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; air tawar dasar (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).
Size / Weight / umur
Maturity: Lm ? range ? - ? cm
Max length : 50.7 cm SL jantan/; (Ref. 81643)
Duri punggung (Keseluruhan (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
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fecundity | Larva
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)
Status IUCN Red List (Ref. 130435: Version 2024-1)
ancaman kepada manusia
Harmless
penggunaan manusia
Perikanan: komersial
Alat, peralatan
laporan khas
muat turun XML
Sumber 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=0.00813 (0.00359 - 0.01840), b=3.06 (2.86 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.5 ±0.5 se; based on size and trophs of closest relatives
Daya lenting (Ref.
120179): Tinggi, Waktu penggandaan populasi minimum kurang dari 15 bulan (Assuming fec > 10,000).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (45 of 100).
Nutrients (Ref.
124155): Calcium = 90.7 [38.7, 207.3] mg/100g; Iron = 1.26 [0.60, 2.34] mg/100g; Protein = 16.8 [15.0, 18.6] %; Omega3 = 0.48 [0.18, 1.26] g/100g; Selenium = 82.4 [36.0, 180.7] μg/100g; VitaminA = 36.8 [13.7, 95.6] μg/100g; Zinc = 1.47 [0.97, 2.10] mg/100g (wet weight);
