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New study on High Arctic lake food webs

21.10.2026
Derek Muir, Günter Köck and Debbie Iqalik in Amituk Lake on Cornwallis Island.

A Canadian-Austrian research team has identified differing trends in the levels of persistent organic pollutants in Arctic lakes. Whilst the concentration of hexachlorobenzene (HCB) in fish from the Canadian Arctic waters studied has risen significantly in recent decades, a marked decline in contamination with polychlorinated biphenyls (PCBs) has been observed since the early 1990s.

Published open access in the Environmental Toxicology and Chemistry Journal: https://doi.org/10.1093/etojnl/vgag112

APA - news: https://science.apa.at/power-search/8961682522075599865