Authors
Andrew L Labaj, Joshua Kurek, Adam Jeziorski, John P Smol
Publication date
2015/2
Journal
Freshwater Biology
Volume
60
Issue
2
Pages
347-359
Description
- Lakes near Sudbury, Canada, have been exposed to intense acidification and metal contamination from nearby mining and smelting operations. Although lakewater pH improved substantially following the implementation of emission controls in the late 1960s, biological recovery continues to lag behind chemical recovery.
- We assessed the current state of biological recovery (relative to pre‐impact times) using multiproxy palaeolimnological records from two nearby lake districts (Sudbury and Killarney), both impacted by acidification but having experienced differences in metal contamination due to their respective distances from smelters.
- Twentieth century cladoceran shifts were most pronounced in the acidified and metal‐contaminated Sudbury lakes, with assemblage changes tracking industrial activity. Chydorus brevilabris increased markedly in dominance, largely at the expense of Bosmina spp. In contrast …
Scholar articles
AL Labaj, J Kurek, A Jeziorski, JP Smol - Freshwater Biology, 2015