Common names from other countries
Teleostei (teleosts) >
Osteoglossiformes (Bony tongues) >
Mormyridae (Elephantfishes)
Etymology: Marcusenius: Becasue of J. Marcusen, author of "Zur Phauna des Schwarzen Meeres", 1867; ichthyologist; verheyenorum: This species is dedicated to the late Professor Emeritus of the University of Antwerp, Walter Verheyen, and his son Eric Verheyen of the University of Antwerp and the Royal Belgian Institute of Natural Sciences; both are zoologists who in particular have been contributing to our knowledge of the vertebrate fauna of the Congo basin; the species is dedicated to both in deep recognition of their commitment to the training of Congolese researchers in general and those of the University of Kisangani (UNIKIS) and the Centre de Surveillance de la Biodiversité (CSB) in particular (Ref. 124516).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
Africa: Middle Congo basin.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 15.4 cm SL male/unsexed; (Ref. 124516)
Short description
Morphology | Morphometrics
Dorsal
spines
(total): 0;
Dorsal
soft rays
(total): 20-21;
Anal
spines: 0;
Anal
soft rays: 26;
Vertebrae: 40 - 41. Diagnosis: Marcusenius verheyenorum belongs to the group of species of Marcusenius with eight large circumpeduncular scales (Ref. 124516). In this group, it differs from M. dundoensis, M. fuscus, M. lambouri, M. sanagaensis, M. schilthuisiae and M. wamuinii by its low number of lateral line scales, 38-43 vs. 51-56, 54-61, 45-48, 44-46, 43-54 and 46-53, respectively; it differs from M. ghesquierei and M. kutuensis by its low number of dorsal-fin rays, 21-22 vs. 32-34 and 27-31, respectively; it differs from M. intermedius, M. kaninginii, M. lambouri and M. moorii by its low total number of vertebrae, 40-41 vs. 42-43, 43-44, 44-45 and 42-44, respectively, and a deep caudal-peduncle height, 44.9-54.6% of its length vs. 37.8-43.8%, 35.0-43.0%, 29.8-39.3% and 29.4-41.3% respectively (Ref. 124516).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Mambo Baba, T., T. Kisekelwa, C. Danadu Mizani, E. Decru and E. Vreven, 2020. Hidden species diversity in Marcusenius moorii (Teleostei: Mormyridae) from the Congo Basin. J. Fish Biol. 96(5):1100-1122. (Ref. 124516)
IUCN Red List Status (Ref. 130435)
CITES (Ref. 128078)
Not Evaluated
Threat to humans
Harmless
Human uses
More information
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
Age/SizeGrowthLength-weightLength-lengthLength-frequenciesMorphometricsMorphologyLarvaeLarval dynamicsRecruitmentAbundance
ReferencesAquacultureAquaculture profileStrainsGeneticsElectrophoresesHeritabilityDiseasesProcessingMass conversion
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01380 (0.00615 - 0.03096), b=2.86 (2.69 - 3.03), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
