Bio-accumulation of heavy metals in commercial species of the South Lake, Tunisia

摘要

The seasonal study of six trace metal levels (Cd, Pb, Cr, Cu, Zn and Fe) in two bivalves Ruditapes decussatus and Mytilus galloprovincialis and three species of fish Anguilla anguilla, Chelon labrosus and Mugil cephalus collected in the South Lake, During the years 1995-1997 has allowed us to observe the bio-accumulation com- Plex, dependent on a multitude of factors such as abiotic parameters, the species and its Metabolism, the organ analyzed as well as the time of exposure to the pollutants.