title: Assessment of trace element contamination and bioaccumulation in algae (Ulva lactuca), mussels (Perna perna), shrimp (Penaeus kerathurus), and fish (Mugil cephalus, Saratherondon melanotheron) along the Senegalese coast.
abstract: Concentrations of 11 elements were quantified in five marine species from different trophic levels of a food web (algae, mussel, shrimp and fish), representative for shallow Senegalese coastal waters, and including species of commercial importance. Significant differences in element concentrations and bioaccumulation were demonstrated, revealing the utility of employing a suite of organisms as bioindicators to monitor metal contamination in coastal areas. There was no clear seasonal pattern in concentration of elements, however inter-site differences were observed. Calculations of transfer factors for all the studied elements showed that transfer factors from water were greater than those from sediments. For shrimp and mussel, the concentrations of Pb and Cd were below the EU's maximum level for human consumption, however high concentrations of arsenic in shrimp were recorded at all sites.
authors.affiliation: Laboratoire d'Océanologie et de Géosciences (LOG), ULCO, 62930 Wimereux, France; Laboratoire de Toxicologie et d'Hydrologie (LTH), UCAD, 5005 Dakar, Sénégal.
authors.forename: Mamadou
authors.initials: M
authors.lastname: Diop
authors.affiliation: Centre Universitaire de Mesure et d'Analyse (CUMA), Université de Lille, 59006, France.
authors.forename: Michael
authors.initials: M
authors.lastname: Howsam
authors.affiliation: Laboratoire de Toxicologie et d'Hydrologie (LTH), UCAD, 5005 Dakar, Sénégal.
authors.forename: Cheikh
authors.initials: C
authors.lastname: Diop
authors.affiliation: Centre Universitaire de Mesure et d'Analyse (CUMA), Université de Lille, 59006, France.
authors.forename: Jean F
authors.initials: JF
authors.lastname: Goossens
authors.affiliation: Laboratoire de Toxicologie et d'Hydrologie (LTH), UCAD, 5005 Dakar, Sénégal.
authors.forename: Amadou
authors.initials: A
authors.lastname: Diouf
authors.affiliation: Laboratoire d'Océanologie et de Géosciences (LOG), ULCO, 62930 Wimereux, France. Electronic address: rachid.amara@univ-littoral.fr.
authors.forename: Rachid
authors.initials: R
authors.lastname: Amara
mesh_terms: D000818:Animals; D023681:Cichlids / Q000378:metabolism; D004784:Environmental Monitoring / Q000379:methods*; D005399:Fishes / Q000378:metabolism*; D020387:Food Chain; D006801:Humans; D019216:Metals, Heavy / Q000032:analysis* / Q000378:metabolism; D033561:Penaeidae / Q000737:chemistry* / Q000378:metabolism; D049883:Perna / Q000737:chemistry* / Q000378:metabolism; D012621:Seasons; D012675:Senegal; D012758:Shellfish / Q000032:analysis; D023701:Smegmamorpha / Q000378:metabolism; D014131:Trace Elements / Q000032:analysis* / Q000378:metabolism; D044445:Ulva / Q000737:chemistry* / Q000378:metabolism; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000378:metabolism
chemical_list: D019216:Metals, Heavy; D014131:Trace Elements; D014874:Water Pollutants, Chemical
keywords: Bioaccumulation; Elements; Marine organisms; Pollution; Senegal