1. Mohammed V University, Morocco; Centre de Recherche en Hydrobiologie, Democratic Republic of the Congo; Hasselt University, Belgium
2. Centre de Recherche en Hydrobiologie, Democratic Republic of the Congo
3. University of Yaoundé I, Cameroon
4. Centre de Recherche en Hydrobiologie, Democratic Republic of the Congo; Institut Supérieur Pédagogique de Bukavu, Democratic Republic of the Congo
5. Mohammed V University, Morocco; Université de Montpellier, France