Abstract
Camamu Bay is the second largest estuary in Bahia state, northeastern Brazil, being recognized by its high diversity and economical relevance for fisheries and tourism. To evaluate the impacts of environmental disturbances in Camamu Bay, trace metals (Cr, Mn, Fe, Co, Ni, Cu, and Pb) were quantified in two widespread and commercially exploited shrimp species (Farfantepenaeus paulensis and Xiphopenaeus kroyeri). High concentrations of all metals but Pb were observed in both species by ICPOES. The concentration values for Cr, Co, and Mn were invariably higher than the accepted limits for human consumption in Brazil. Inter and intraspecific variation in metal levels might be related to biological particularities and body size. The accentuated contamination by trace metals in both species validated them as efficient bioindicators of environmental quality. Thus, effective planning, monitoring and regulatory policies should be adopted to inspect and remediate the metal contamination in natural resources from Camamu Bay.
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