Seasonal variations of heavy metals content in mussels (Mytilus galloprovincialis) from Cala Iris offshore (Northern Morocco). (December 2018)

• Record Type: Journal Article
• Authors: Azizi, Ghizlane; Layachi, Mostafa; Akodad, Mustapha; Yáñez-Ruiz, David R.; Martín-García, Antonio Ignacio; Baghour, Mourad; Mesfioui, Abdelhakim; Skalli, Ali; Moumen, Abdelmajid
• Is Part Of: Marine pollution bulletin. Volume 137(2018)
• Page Start: 688
• Page End: 694
• Publication Date: 2018-12
• Subjects: Cala Iris offshore -- Mussel farming -- Mytilus galloprovincialis -- Heavy metal -- Sentinel organisms -- Seasonal variation; Marine pollution -- Periodicals; Marine Biology -- Periodicals; Water Pollution -- Periodicals; Mer -- Pollution -- Périodiques; Publications périodiques; Pollution des mers; Lutte antipollution; Electronic journals; 363.7394
• DOI: 10.1016/j.marpolbul.2018.06.052
• Languages: English
• ISSNs: 0025-326X

Abstract

Abstract: Heavy metal concentrations of Cd, Cr, Cu, Fe, Ni, Zn, Co, and Pb were investigated in soft tissues of Mytilus galloprovincialis coming from an aquaculture farm in Cala Iris sea of AlHoceima. Mytilus galloprovincialis were collected monthly during the period January to December 2016. The seasonal variations were affected significantly the concentrations of metals (Cd, Fe and Cr) in M. galloprovincialis . The highest heavy metal concentrations were recorded in winter (0.89 mg/kg, 673.2 and 3.330 mg/kg; for Cd, Fe and Cr, respectively) and the lowest values were founded in summer for Cd (0.646 mg/kg), and in autumn for Fe (340.1 mg/kg) and Cr (1.959 mg/kg). A significant effect of seasons on metal concentrations can be attributed to a number of biological and environmental inter-related factors. Data from this study may provide information on the use of M. galloprovincialis as a bioindicator for heavy metals pollution in the Cala Iris Sea. Highlights: This study reported the distribution of metals (Cd, Fe, Cu, Zn, Cr, Co, Ni and Pb) in tissues of M. galloprovincialis . Mussels showed a seasonal trend of bioaccumulation being higher in winter and lower in summer. The water quality and food availability affected the metal concentrations in M. galloprovincialis . The metal concentrations in mussels should pose no health problems for consumers.