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Objectives: This study aims to determine the composition and abundance of the zooplankton stand in nursery ponds of Chrysichthys nigrodigitatus fertilized with three organic foods. Method and results : Zooplankton were sampled monthly using a 20 μm mesh void plankton net in three fertilized ponds and one control pond. A total of 36 taxa were observed, including 22 Rotifers (61.11%), 5 Copepods (13.89%), 7 Cladocera (19.45%) and 2 other organisms (5.55%). The richness varies according to the ponds and fertilizers (19 to 25 taxa). The highest abundances were obtained in ponds Etg3 and Etg2 (132-184 ind.l-1) and the lowest in ponds (Etg0 and Etg1) (44-52 ind.l-1). Conclusion and application: At the end of this work, it should be noted that the zooplankton harvested is more abundant in the fertilized ponds than in the control. This abundance is higher with SG2. As a result, this food is shown to be high-performing food that favours the growth of zooplankton. Thus, this food appears to be the most efficient food that promotes the proliferation of zooplankton. Therefore, it would be important to use this food to produce the zooplankton species most valued by the farmed fish species.

journal of applied biosciences

Peuplement zooplanctonique des étangs de prégrossissement de Chrysichthys nigrodigitatus (Lacépède, 1803) fertilisés avec trois aliments organiques composés des sous-produits agricoles récoltés en Côte d’Ivoire