Critical body residues of persistent, bioaccumulative toxicants (PBT) in estuarine meiobenthic copepods

Status: 
Complete
Investigators: 
G. Thomas Chandler (PI), P. Lee Ferguson (co-PI)
Funding Agency: 
US EPA GRO

Sediment-dwelling meiobenthic copepods are an important trophic link in estuarine food webs.  An important question is how these organisms respond to and accumulate sediment-associated hydrophobic organic contaminants.  We are conducting research to integrate high-throughput multi-generational toxicity assays with sensitive analytical techniques for organic contaminant body-burden analysis,.  The goal of this work is to determine critical body residues (CBR) of chlorinated pesticides (e.g. chlordane and lindane) and polybrominated diphenyl ether (PBDE) flame retardants in controlled laboratory experiments, and to assay the body-burdens of these contaminants in copepods collected from contaminated field sediments in coastal South Carolina.