Use of Biological Parameters of Mytilus Galloprovincialis and Modelling Investigation Tools for Installing Potential Future Zones of Mussel Farming After Improvement of Anza-Taghazout Seawater Quality

Many studies in different scientific fields were interested in the environmental status of the Anza-Taghazout maritime sector (Agadir coastline, South of Morocco), but there is still a lack of knowledge and projects about the aquaculture of bivalves, especially Mytilus galloprovincialis. For this reason, this new work comes to show the natural performances of three natural deposits of M. galloprovincialis and the feasibility of establishing a sustainable shellfish culture. Indeed, the improvement of re-establishing of the health state of these coastlines due to the installation of two wastewater treatment plants in Anza-Taghazout costs since 2016 could probably ameliorate the growth performance of bivalve living in this area. Thus, could be beneficial for the installation of mussel farming in the Anza-Taghazout sector. For this, an in-depth study of the biology of M. galloprovincialis was carried out during two successive cycles 2017–2018 with the sampling of 3600 animals. Three biometric parameters, three weight parameters, and gender identification were assessed during this study. In addition, environmental parameters were carried out in situ in marine water. To fulfill these data, remote sensing parameters were investigated using Copernicus satellite data. Results of environmental and nutrient parameters in seawater follow seasonal variations of the studied area. Condition indices results showed a significant increased. In the same sense, biometric parameters increased significantly. The significant improvement in the biological indices of M. galloprovincialis could encourage the installation of mussel farming in the Anza-Taghazout maritime region and thus, contribute to making Moroccan aquaculture a growth driver in the fisheries sector.