Article (Scientific journals)
Biologie de la reproduction des Marcusenius (M. monteiri, M. stanleyanus, M. schilthuisiae et M. macrolepidotus) du Pool Malebo, fleuve Congo, Kinshasa
Ntumba Mabedi, Jean Métis; Mbadu Zebe, Victorine; Michaux, Johan et al.
2022In International Journal of Biological and Chemical Sciences, 16 (2), p. 564 - 580
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Keywords :
Congo River; Fertility; Malebo pool; Marcusenius fish; Agricultural and Biological Sciences (miscellaneous); Forestry; Soil Science; Environmental Engineering
Abstract :
[en] The reproductive biology of Marcusenius fish from the Malebo pool situated in the Congo River is poorly known. However, their current exploitation is done without taking into account stock renewal. The objective of this study was to determine the reproductive strategies of four species of the most abundant Marcusenius observed in the Malebo pool. All four species of Marcusenius collected have well developed left gonads with large oocytes of almost the same size that can be expelled in a single spawning. These fishes practice a migratory strategy in flooded sites for spawning and fry holding at the beginning of the rainy season. This period coincides with flooding and a slight variation of environmental parameters in the spawning grounds. Fecundity is highest towards the end of the dry season and the beginning of the rainy season, between August and September. Gonad maturity in females begins in June and July. By the end of September and October, almost all species are mature and by November/December most are post-spawning.
Disciplines :
Zoology
Author, co-author :
Ntumba Mabedi, Jean Métis;  Laboratoire d’Hydrobiologie, Faculté des Sciences de l’Université de Kinshasa «UNIKIN». ISTM, Kinshasa, Democratic Republic Congo ; École Régionale Post-Universitaire d’Aménagement et de Gestion Intégrée des Forêts et Territoires Tropicaux (ERAIFT), Kinshasa, Democratic Republic Congo
Mbadu Zebe, Victorine;  Laboratoire d’Hydrobiologie, Faculté des Sciences de l’Université de Kinshasa «UNIKIN». ISTM, Kinshasa, Democratic Republic Congo
Michaux, Johan  ;  Université de Liège - ULiège > Integrative Biological Sciences (InBioS)
Micha, Jean-Claude;  Unité de Recherche en Biologie Environnementale (URBE), Université de Namur, Democratic Republic Congo ; École Régionale Post-Universitaire d’Aménagement et de Gestion Intégrée des Forêts et Territoires Tropicaux (ERAIFT), Kinshasa, Democratic Republic Congo
Language :
French
Title :
Biologie de la reproduction des Marcusenius (M. monteiri, M. stanleyanus, M. schilthuisiae et M. macrolepidotus) du Pool Malebo, fleuve Congo, Kinshasa
Publication date :
08 July 2022
Journal title :
International Journal of Biological and Chemical Sciences
ISSN :
1991-8631
eISSN :
1997-342X
Publisher :
International Formulae Group (IFG)
Volume :
16
Issue :
2
Pages :
564 - 580
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 25 January 2024

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