|
|||||
|
|
Total and methylmercury residues in cartilaginous fish from Mediterranean Sea |
|
| Authors: | Storelli M M Giacominelli-Stuffler R Marcotrigiano G O |
| Institution: | a Pharmacological–Biological Department, Chemistry and Biochemistry Section, Veterinary Medicine Faculty, University of Bari, Strada Prov. le per Casamassima Km 3, 70010 Valenzano, Bari, Italy b Biochemistry Institute, Medicine Veterinary Faculty, University of Teramo, Loc. Piano D’Accio, 64, 64100, Teramo, Italy |
| Abstract: | Concentrations of mercury and methylmercury residues were determined in the muscle tissue of three cartilaginous fishes Chimaera monstrosa (ghostshark), Torpedo nobiliana (electric ray) and Myliobatis aquila (eagle ray) from the Mediterranean Sea. The highest mean levels of total mercury were detected in ghostshark (3.14 mg/kg wet weight), followed by electric ray (2.42 mg/kg wet weight), and eagle ray (0.83 mg/kg wet weight). Such a variability is influenced by quite a number of factors, among which size, fish ecology and feeding habits. The percentages of the methylated form to total mercury ranged from a minimum of 72% in eagle ray to a maximum of 83% in ghostshark. Relationship between specimen size and mercury and methylmercury concentrations were found in ghostshark species. |
| Keywords: | Eagle ray Electric ray Ghostshark Mediterranean Sea Mercury Methylmercury |
| 本文献已被 ScienceDirect PubMed 等数据库收录！ | |