Katrine Borgå

TL;DR: The present paper summarizes the recent literature with an emphasis on identifying important ecological factors for explaining variability of OC concentrations among organisms and introduces simplification into models developed to assess OC dynamics in aquatic food webs.

TL;DR: Empirical TMFs are likely to be useful for understanding the food web biomagnification potential of chemicals, but may be less useful in species- and site-specific risk assessments, where the goal is to predict absolute contaminant concentrations in organisms in relation to threshold levels.

TL;DR: The results reflected trophic transfer of organochlorines along the food chain as well as different elimination potentials due to direct diffusion in crustaceans and fish, and higher contaminant metabolic activity in seabirds.

TL;DR: The F WMFs in the Beaufort-Chukchi Seas region were consistent with reported values in the Canadian Arctic and temperate food webs, but were statistically different than FWMFs from the Barents and White Seas, indicating that the spatial variability of OC contamination in top-level marine Arctic predators is attributed to differences in regional sources of contamination rather than trophic position.

TL;DR: Concentrations of lipophilic and persistent organochlorines were orders of magnitude higher in homeotherms than in poikilotherms, with the highest food web magnification factors (FWMFs) for cis-chlordane and p,p‘-DDE.