Trace metals in two commercial shrimps from southeast Brazil: Baseline records before large port activities in coastal waters.

ABSTRACT

This study presents baseline records of trace metals for two commercial shrimps from the inner continental shelf of southeast Brazil (~22°S). Organisms were sampled in 2004, 10 years before the beginning of large port activities in coastal waters. The concentrations of trace metals in muscle tissues (µg.g-1 w.w.) of Xyphopenaues kroyeri and Artemesia longinaris are as follows Al 141.57 and 146.71, Fe 83.17 and 91.68, Zn 28.69 and 29.70, Cu 7.19 and 3.94, Mn 1.47 and 1.72, Pb 1.14 and 0.60, V 0.66 and 0.56, Ni 0.38 and 0.34, Cr 0.42 and 0.29, and Cd 0.15 and 0.14, respectively. Significantly higher concentrations of Cu and Pb were recorded for X. kroyeri. In general, the concentrations are below the maximum permissible limits for metals in fishery/food products, as established by the Brazilian Agency for Sanitary Vigilance (ANVISA), except for Pb and Cr. These baseline records are relevant for future monitoring.