1. Altindag A, Yigit S (2005) Assessment of heavy metal concentrations in the food web of lake Beysehir, Turkey. Chemosphere 60:552–556
2. Ayyadurai K, Krishnasamy V (1989) Total mercury concentration in fresh water, sediment, and fish. J Environ Biol 10:165–171
3. Canli M, Kalay M, Ay O (2001) Metal (Cd, Pb, Cu, Zn, Fe, Cr, Ni) concentrations in tissues of a fish Sardina pilchardus and a prawn Peaenus japonicus from Three Stations on the Mediterranean Sea. Bul Environ Contam Toxicol 67:75–82
4. Carvalho ML, Santiago S, Nunes ML (2005) Assessment of the essential element and heavy metal content of edible fish muscle. Anal Bioanal Chem 382: 426–432
5. EU (European Communities) (2002) Amending regulation, setting maximum levels of certain contaminants in foodstuffs. Official J Eur Communities L37: 4–6