1. Laboratory of d’Hydrobiology and Aquaculture, University of Abomey-Calavi, Abomey-Calavi, Benin
2. Research Laboratory in Aquaculture and Aquactic Ecotoxicology, University of Parakou, Parakou, Benin
3. Siret Water Basin Administration, Bacau, Romania
4. Department of Teacher Training, University of Bucharest, Bucharest, Romania