Bioaccumulation of Polychlorinated Biphenyls in the Delaware River Estuary

Composite collections of channel catfish (Ictalurus punctatus), white perch (Morone americana), their prey items (forage fish and epibenthos), and surficial sediment had been gathered in the Delaware River estuary in Fall 2001 and Spring 2002 to evaluate polychlorinated biphenyl (PCB) deposition and also to analyze the mechanisms of bioaccumulation and trophic transfer. Specimens had been obtained from 4 specific zones in a portion of the Delaware River from Trenton, NJ to Liston Point, DE, and examined regarding lipid content and the hydrophobic organic pollutants PCBs. Our results reveal PCB levels and congener distributions in biota reflect spatial and temporal tendencies in ambient PCB concentrations. PCB congener patterns vary among sampling zones, with higher homologue groups enriched in lower zones. Demersal types have comparable congener accumulation patterns…

Contents: Bioaccumulation of Polychlorinated Biphenyls in the Delaware River Estuary

Chapter 1 INTRODUCTION
Background
Objectives
Strategy
Chapter 2 MATERIALS AND METHODS Sample Collection
Extraction and Analysis
Quality Assurance
Chapter 3 ACCUMULATION OF POLYCHLORINATED BIPHENYLS IN
SEDIMENT AND BIOTA
Introduction
Results and Discussion
PCB Spatial Patterns
PCB Congener Patterns
Conclusions
Chapter 4 MECHANISMS OF BIOACCUMULATION AND TROPHIC TRANSFER OF POLYCHLORINATED BIPHENYL CONGENERS
Introduction
Results and Discussion
BCF
BSAF
Predator/Prey Ratios…

Source: University of Maryland

Leave a Comment