PMID- 32129610 OWN - NLM STAT- MEDLINE DCOM- 20200617 LR - 20200617 IS - 1520-5851 (Electronic) IS - 0013-936X (Print) IS - 0013-936X (Linking) VI - 54 IP - 7 DP - 2020 Apr 7 TI - Implications of Trophic Variability for Modeling Biomagnification of POPs in Marine Food Webs in the Svalbard Archipelago. PG - 4026-4035 LID - 10.1021/acs.est.9b06666 [doi] AB - The occurrence of persistent organic pollutants (POPs) in the Arctic has been of constant concern, as these chemicals cause reproductive effects and mortality in organisms. The Arctic acts as a chemical sink, which makes this system an interesting case for bioaccumulation studies. However, as conducting empirical studies for all Arctic species and POPs individually is unfeasible, in silico methods have been developed. Existing bioaccumulation models are predominately validated for temperate food chains, and do not account for a large variation in trophic levels. This study applies Monte Carlo simulations to account for variability in trophic ecology on Svalbard when predicting bioaccumulation of POPs using the optimal modeling for ecotoxicological applications (OMEGA) bioaccumulation model. Trophic magnification factors (TMFs) were calculated accordingly. Comparing our model results with monitored POP residues in biota revealed that, on average, all predictions fell within a factor 6 of the monitored POP residues in biota. Trophic variability did not affect model performance tremendously, with up to a 25% variability in performance metrics. To our knowledge, we were the first to include trophic variability in predicting biomagnification in Arctic ecosystems using a mechanistic biomagnification model. However, considerable amounts of data are required to quantify the implications of trophic variability on biomagnification of POPs in Arctic food webs. FAU - Hoondert, Renske P J AU - Hoondert RPJ AUID- ORCID: 0000-0001-6990-9851 AD - Department of Environmental Science, Institute for Wetland and Water Research, Faculty of Science, Radboud University, P.O. Box 9010, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands. FAU - van den Brink, Nico W AU - van den Brink NW AD - Division of Toxicology, Wageningen University, Box 8000, 6700 EA Wageningen, The Netherlands. FAU - van den Heuvel-Greve, Martine J AU - van den Heuvel-Greve MJ AD - Wageningen Marine Research, P.O. Box 77, 4400 AB Yerseke, The Netherlands. FAU - Ragas, AdM J AU - Ragas AJ AD - Department of Environmental Science, Institute for Wetland and Water Research, Faculty of Science, Radboud University, P.O. Box 9010, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands. AD - Faculty of Management, Science and Technology, Open University, P.O. Box 2960, 6401 DL Heerlen, The Netherlands. FAU - Jan Hendriks, A AU - Jan Hendriks A AD - Department of Environmental Science, Institute for Wetland and Water Research, Faculty of Science, Radboud University, P.O. Box 9010, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200313 PL - United States TA - Environ Sci Technol JT - Environmental science & technology JID - 0213155 RN - 0 (Environmental Pollutants) RN - 0 (Water Pollutants, Chemical) SB - IM MH - Animals MH - Arctic Regions MH - Bioaccumulation MH - Ecosystem MH - Environmental Monitoring MH - *Environmental Pollutants MH - Fishes MH - Food Chain MH - Svalbard MH - *Water Pollutants, Chemical PMC - PMC7144221 COIS- The authors declare no competing financial interest. EDAT- 2020/03/05 06:00 MHDA- 2020/06/18 06:00 PMCR- 2020/04/09 CRDT- 2020/03/05 06:00 PHST- 2020/03/05 06:00 [pubmed] PHST- 2020/06/18 06:00 [medline] PHST- 2020/03/05 06:00 [entrez] PHST- 2020/04/09 00:00 [pmc-release] AID - 10.1021/acs.est.9b06666 [doi] PST - ppublish SO - Environ Sci Technol. 2020 Apr 7;54(7):4026-4035. doi: 10.1021/acs.est.9b06666. Epub 2020 Mar 13.