Abstract:
Rivers and streams around the world are increasingly polluted by pharmaceuticals and
personal care products (PPCPs). In order to understand what the effects on freshwater systems
are, it is necessary to combine laboratory testing of water samples in conjunction with
biomonitoring. The Asiatic clam, Corbicula fluminea, is an ideal species for biomonitoring since
they accumulate toxins within their tissues. In 2011 and 2012, C. fluminea were systematically
sampled across nine sites in 2011 and nineteen sites in 2012; water samples were collected and
subsequently analyzed for pharmaceuticals. Principal component analysis, Canonical
Correspondence Analysis, and univariate linear regressions were used to analyze the results from
both sampling years. Results from the Principal Component Analysis showed Corbicula
fluminea density and average biomass were related to environmental parameters. Results from
the Canonical Correspondence Analysis showed Triclocarban and Carbamazepine were related
to environmental parameters. In 2011, C. fluminea density was correlated with Carbamazepine;
there were no relationships in 2012.
