Molluscs

Trace Metals in Noah’s Ark Shells (Arca noae Linnaeus, 1758): Impact of Tourist Season and Human Health Risk

“…Main sources of anthropogenic impact in coastal areas are the residence in the coastal zone, fisheries and aquaculture, shipping, tourism, and land-use practices (agriculture, industrial development). Unlike other bivalve species, for which, there are a lot of data on concentrations of metals (Eisler 2010), studies on metal concentrations in soft tissue of Noah's Ark shells are generally lacking. A and according to our knowledge, only two short reports on concentrations of several trace metals in this shellfish have been published (Ozretić et al 1990;Cuculić et al 2010).…”

Accumulation Features of Micro and Macroelements in Indigenous and Alien Molluscs in Saldanha Bay, South Africa

“…These results are shown in the form of ranges, where the extremes from reference and our studies were excluded. In general, the concentrations of the majority of elements in the molluscs for this study have lower values if compared to the reference data [20]. However, elements such as Mn and As (Table 1) were accumulated by indigenous mussels (CM), Se by alien mussels (MG) and Cu by alien oysters (CG) in the higher concentrations.…”

“…According to [19] alien mussels (MG) demonstrated a decrease in Cu concentration with increasing body weight. In industrialized areas, Cu reached values that ranged from 8.3-49.0 ppm dry weight in MG, with 148 ppm being the maximal when background concentrations are 7.6-9.7 ppm [20].…”

“…This could be explained by changes in the hydrodynamic parameters of the bay since the previous study. The obtained values were also compared to the reference data for the same species of the molluscs (except for the elements V and Cs) sampled in other coastal regions of the world [20] (Table 5). These results are shown in the form of ranges, where the extremes from reference and our studies were excluded.…”