Id Halla Mohamed , Hassan Nhhala, Jawad Kassila, El Mustapha AIT CHATTOU, Abdellatif ORBI et Abdellatif MOUKRIM (2017) - Comparative production of two mussel species (Perna perna and Mytilus galloprovincialis) reared on an offshore submerged longline system in Agadir, Morocco. International Journal of Scientific & Engineering Research Volume 8, Issue 6, June-2017 1203 ISSN 2229-5518.