A model of PCB bioaccumulation in the sea bass food web from the Seine Estuary (eastern English Channel).
A bioaccumulation model was developed to simulate the PCB contamination in the sea bass food web from the Seine Estuary. The model relies upon a contaminant mass balance budget for each biological species. Biological processes determine the extent of bioaccumulation: respiration and feeding rates control the uptake of contaminants whereas excretion, spawning, and growth act on the chemicals removal. A step-by-step modelling approach was followed. A first version was a steady-state model validated for the bioaccumulation processes. In the second version seasonal variation was taken into account, and finally in the third version, the model was coupled with a population dynamics model to describe PCB contamination in each age class.
Loizeau
V
V
Département d'Ecologie Cĵtière, IFREMER, Centre le Brest, Plouzané, France. vloizeau@ifremer.fr
Abarnou
A
A
Cugier
P
P
Jaouen-Madoulet
A
A
Le Guellec
A M
AM
Menesguen
A
A
D000367:Age Factors; D000818:Animals; D001492:Bass; D001682:Biological Availability; D004785:Environmental Pollutants / Q000493:pharmacokinetics*; D020387:Food Chain; D005602:France; D008962:Models, Theoretical; D011078:Polychlorinated Biphenyls / Q000493:pharmacokinetics*; D011157:Population Dynamics; D012621:Seasons; D014018:Tissue Distribution; D014874:Water Pollutants, Chemical / Q000493:pharmacokinetics*
D004785:Environmental Pollutants; D014874:Water Pollutants, Chemical; D011078:Polychlorinated Biphenyls