Actinopterygii (ray-finned fishes) > Osteoglossiformes
(Bony tongues) > Mormyridae
Etymology: Marcusenius: Becasue of J. Marcusen, author of "Zur Phauna des Schwarzen Meeres", 1867; ichthyologist. More on author: Boulenger.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal; potamodromous (Ref. 51243). Tropical
Africa: Quanza, Kunene and upper Zambezi in Angola (Ref. 11970, 94473). Also in the Kasai (Ref. 41590), middle Congo River (Ref. 41591) and Aruwimi (Ref. 106290) in Democratic Republic of the Congo; possibly also in Pool Malebo (Ref. 45486).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 13.5 cm TL male/unsexed; (Ref. 42015)
Morphology | Morphometrics
soft rays: 33. Diagnosis: Marcusenius angolensis can be distinguished from its congeners by the following characters: number of anal fin rays 33, number of dorsal rays 26, anal fin length 25.7% of standard length, dorsal fin length 19.6% of standard length, and caudal peduncle length 17.0% of standard length (Ref. 75962).
Colouration: colour in preservation: a homogeneous brown-ochre (Ref. 75962).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Kramer, B., P. Skelton, H. van der Bank and M. Wink, 2007. Allopatric differentiation in the Marcusenius macrolepidotus species complex in southern and eastern Africa: the resurrection of M. pongolensis and M. angolensis, and the description of two new species (Mormyridae, Teleostei). J. Nat. Hist. 41(9-12):647-708. (Ref. 75962)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00501 (0.00215 - 0.01171), b=3.07 (2.86 - 3.28), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.1 ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (13 of 100) .