eng Science and Education Publishing American Journal of Water Resources 2333-4819 2025-06-25 13 2 63 68 10.12691/ajwr-13-2-4 AJWR20251324 article Mamadou Lamine DIOP 1 Alioune FAYE alioune5.faye@ucad.edu.sn 2 Malick DIOUF 3 Department of Fisheries Protection and Monitoring, Ministry of Fisheries, Maritime and Port Infrastructure, Dakar, BP 3656, Senegal Institute of Environmental Sciences, Faculty of Science and Technology, Cheikh Anta Diop University of Dakar, Dakar, BP 5005, Senegal Department of Animal Biology, Faculty of Science and Technology, Cheikh Anta Diop University of Dakar, BP 5005, Senegal This study investigated the growth, mortality and exploitation parameters of Senilia senilis in the Senegal River delta, Senegal. Samples were collected monthly from July 2017 to Jun 2018. The parameters were estimated based on size-frequency data processed by FISAT II software. The measured length of 9939 specimens ranged from 5 to 65.48 mm. The growth parameter (K) was estimated as 1.30 yr-1 with asymptotic length (L¡Þ = 68.25 mm). The growth performance index and the theoretical age at birth (t0) were estimated as 3.78 and -0.097 yr-1 respectively. Total mortality, natural mortality and fishing mortality rates were estimated as 3.29 yr-1, 1.64 yr-1 and 1.65 yr-1 respectively. The current exploitation rate (E) was calculated as 0.5 which showed an optimal exploitation of Senilia senilis in the Senegal River delta. However, urgent management actions should be taken for a sustainable exploitation of this species. https://pubs.sciepub.com/ajwr/13/2/4/ajwr-13-2-4.pdf Senilia senilis Senegal River Gandiol Population Dynamics Growth