Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water demersaal; potamodroom (Ref. 51243). Tropical
Africa: Gambia, Senegal, Niger, Volta and Chad basins. Sahelo-Soudanian basins and the coastal basins of the rivers Cavally, Bandama, Sassandra, Comoé, Mono, Ouémé, Ogun and Culufi; Congo basin. Two subspecies exist: Mormyrus rume rume: West Africa and Chad System; Mormyrus rume proboscirostris: middle and upper Congo River.
Lengte bij maturiteit / Grootte / Gewicht / Leeftijd
Maturity: Lm ?, range 33 - ? cm
Max length : 100.0 cm SL mannelijk / geslacht onbekend; (Ref. 31256); max. gepubliceerd gewicht: 5.3 kg (Ref. 2915); max. gerapporteerde leeftijd: 6 Jaren (Ref. 2744)
Dorsale stekels (totaal) : 0; Dorsale zachte stralen (totaal) : 72 - 95; Anale stekels: 0; Anale zachte stralen: 16 - 21. Anal fin base 4.6-6.5x that of dorsal fin; 20-26 scales on caudal peduncle; body height 3.5-6.1x SL; height of caudal peduncle 1.3-3.0x of its length.
Affinities: look-alike of M. subundulatus and M. tapirus. Feeds on insects and larvae (Ref.13851). Generates electric organ discharge (EOD) of long duration that seems to correlate with territorial behavior of the species (Ref. 10460; 10601).
Bigorne, R., 1990. Mormyridae. p. 122-184. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux saumâtres d'Afrique de l'Ouest. tome 1. Faune Trop. 28. Musée Royal de l'Afrique Centrale, Tervuren, and ORSTOM, Paris. (Ref. 2915)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-1)
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: commercieel
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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=0.01023 (0.00792 - 0.01322), b=2.83 (2.78 - 2.88), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trofisch niveau (Ref.
69278): 2.5 ±0.86 se; based on food items.
Weerstandsvermogen (Ref.
120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Assuming tm=5-10; Fec < 1,000).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (73 of 100).
Nutrients (Ref.
124155): Calcium = 187 [40, 394] mg/100g; Iron = 1.12 [0.44, 2.77] mg/100g; Protein = 18.4 [15.7, 20.6] %; Omega3 = 0.452 [0.181, 1.191] g/100g; Selenium = 96 [36, 210] μg/100g; VitaminA = 23 [8, 65] μg/100g; Zinc = 2.69 [0.60, 7.23] mg/100g (wet weight); based on
nutrient studies.