The control of fishing parameters holds a prominent place in the strategy put in place by the managers of this sector in Ivorian waters. This work focuses on the description of seasonal variations in fish production parameters in the Potou lagoon. The data was collected from January 2020 to December 2021 in the Vitré station from surveys and analysis of fishermen's catches. The values ​​of fishing effort, Catch per Unit of Effort and total production vary from season to season and from gear to gear. The total fishing effort is 9368 trips. It is higher (6576 trips) during the long dry season and lower (0 trips) in the short rainy season. Regarding the PUE values, they are higher (43.62 kg/trip) in the long dry season and lower (0 kg/trip) in the short rainy season. The highest catches are obtained in the long dry season with 274958.71 kg. Beach seines (231,524 kg or 35.90%) and gillnets (136,556 kg or 21.17% of total production) are the most efficient gears. The results of this work constitute a basic element for decision-making in the quest for a strategy for the sustainable management of fisheries resources in Côte d'Ivoire.