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Osteoglossiformes (Bony tongues) >
Mormyridae (Elephantfishes)
Etymology: Marcusenius: Becasue of J. Marcusen, author of "Zur Phauna des Schwarzen Meeres", 1867; ichthyologist.
Eponymy: Dr Johann Andreas Marcusen (1817–1894) was a Latvian of German descent who was a physician, ichthyologist and zoologist. [...] Joachim John (João José) Monteiro (1833–1878) was a Portuguese mining engineer and entomologist who had English ancestors – hence ‘John’ and alternatives to it. [...] (Ref. 128868), visit book page.
More on author: Günther.
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
; sötvatten bottenlevande. Tropical
Africa: widespread in the Congo River basin, in Cameroon (Ref. 46901), Republic of Congo (Ref. 44840, 46853), Democratic Republic of the Congo (Ref. 2910, 41580, 41591, 41594, 42510, 45441, 106290) and Zambia (Ref. 246, 42135).
Size / Vikt / Age
Könsmognad: Lm ?  range ? - ? cm
Max length : 45.0 cm TL hane/ej könsbestämd; (Ref. 1878); publicerad maxvikt: 1.6 kg (Ref. 246)
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Gosse, J.-P., 1984. Mormyridae. p. 63-122. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 3203)
IUCN Red List Status (Ref. 130435: Version 2025-1)
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=0.01698 (0.01038 - 0.02777), b=2.85 (2.71 - 2.99), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (K=0.26).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (35 of 100).
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