Common names from other countries
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten bottenlevande; flodvandrande (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.
Length at first maturity / Size / Vikt / Age
Maturity: Lm ?, range 33 - ? cm
Max length : 100.0 cm SL hane/ej könsbestämd; (Ref. 31256); publicerad maxvikt: 5.3 kg (Ref. 2915); rapporterad maxålder: 6 år (Ref. 2744)
Taggstrålar i ryggfenan (totalt) : 0; Mjukstrålar i ryggfenan (totalt) : 72 - 95; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 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)
IUCN Red List Status (Ref. 130435)
CITES (Ref. 128078)
Not Evaluated
Threat to humans
Harmless
Human uses
Fiskeri: kommersiell
Verktyg
Special reports
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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=0.01047 (0.00806 - 0.01360), b=2.82 (2.77 - 2.87), in cm Total Length, based on LWR estimates for this species (Ref.
93245).
Trofisk nivå (Ref.
69278): 2.5 ±0.86 se; based on food items.
Resiliens (Ref.
120179): Låg, lägsta populationsfördubblingstid 4,5-14 år (Assuming tm=5-10; Fec < 1,000).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (73 of 100).