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Ghizlane Azizi,Mostafa Layachi,Mustapha Akodad,Mourad Baghour,Mohammad Ghalit,Elkhadir Gharibi,Hamza Ngadi,Abdelmajid Moumen 한국해양과학기술원 2020 Ocean science journal Vol.55 No.3
The accumulation levels of elements (Al, As, Li, Mg, Mn, S, Si, Ti, and V) in the soft tissue of mussels (Mytilus galloprovincialis), collected monthly in 2016, from Junuary to December, from sampling sites of the mussel farming facilities installed in the coastal areas of Al Hoceima, were investigated. The studied element levels were determined by using Inductively Coupled Plasma - Optical Emission Spectrometry (ICP-OES 720-ES). Descending order of the average element concentrations in soft tissue ofM. galloprovincialiswas S > Mg > Si> Al > Mn > Ti > As >V > Li. Element contents (Al, As, Mg, S and V) in tissue of mussels were significantly different (P < 0.05) between seasons, being highest in winter and lowest in summer. Strong correlations were observed between studied elements and chlorophylla, indicating the importance of food for metal bioaccumulation in mussels in this period of the season. The observed strong correlations for metal levels in tissues of mussels can be explained by their common sources, which are associated with anthropogenic effects. The detected seasonal variations of investigated element concentrations in soft tissues ofM. galloprovincialiscould be attributed to physicochemical parameters such as temperature, salinity, dissolved oxygen, nutrients and food availability, as well as the biological status of the mussel. This study may provide basic information for detecting the current pollution status of investigated elements in Al Hoceima coasts from the Moroccan Mediterranean Sea usingM. galloprovincialisas biological indicators.