Trace metal distribution in pelagic fish species from the north-west African coast (Morocco)

Type Article
Date 2018-06
Language English
Author(s) Afandi Imane1, 2, Talba Sophia2, 3, Benhra Ali2, Benbrahim Samir2, Chfiri Rachid2, Labonne Maylis4, Masski Hicham2, Lae Raymond4, de Morais Luis Tito4, Bekkali Mohammed1, Bouthir Fatima Zohra2
Affiliation(s) 1 : Hassan II Univ, Fac Sci Ain Chock, BP 5366, Casablanca 20100, Morocco.
2 : Natl Inst Halieut Res, St Sidi Abderrahmane Club Equestre Ould Jmel, Casablanca 20100, Morocco.
3 : Fac Sci Ben Msik, Ave Cdt Driss Lharti, Casablanca 20700, Morocco.
4 : IUEM, UMR LEMAR 6539, Pl Copernic, F-29820 Brest, France.
Source International Aquatic Research (2008-4935) (Springer Heidelberg), 2018-06 , Vol. 10 , N. 2 , P. 191-205
DOI 10.1007/s40071-018-0192-7
WOS© Times Cited 13
Abstract

In the current study, ten elements contents (Fe, Zn, Mn, Cu, Cr, Co, Ni, Cd, Pb and Hg) have been measured in muscle and liver of four pelagic fish species (Engraulis encrasicolus, Sardina pilchardus, Scomber japonicus and Trachurus trachurus) from the north-west African coast (South Atlantic Moroccan coast), collected during summer and autumn seasons (July and December 2013, respectively). Significant differences in metal contents were found between the different species (p < 0.05). Metals levels were also much higher in liver than those recorded in muscle tissues. The concentrations of Fe, Zn, Cd, Co, Cu and Pb were significantly higher in mackerel liver (p < 0.05).While, in muscle, anchovy presents a higher content of Mn, Cu, Cr, Ni and Pb. A high level of cadmium was recorded in liver of the different species which can be attributed to an anthropogenic source (phosphate industry) and to natural sources (upwelling activities). The main concentration of toxic elements (Cd, Pb and Hg) recorded in the four edible muscles of pelagic fish species, under study, were below the established values by the European Commission Regulations and show that their effect on the consumers health can be considered as negligible.

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Afandi Imane, Talba Sophia, Benhra Ali, Benbrahim Samir, Chfiri Rachid, Labonne Maylis, Masski Hicham, Lae Raymond, de Morais Luis Tito, Bekkali Mohammed, Bouthir Fatima Zohra (2018). Trace metal distribution in pelagic fish species from the north-west African coast (Morocco). International Aquatic Research, 10(2), 191-205. Publisher's official version : https://doi.org/10.1007/s40071-018-0192-7 , Open Access version : https://archimer.ifremer.fr/doc/00616/72787/