10/06/2026
Scientists have long believed that the spiny water flea arrived in the Great Lakes in the early 1980s with trans-Atlantic ships before spreading through inland lakes across Ontario and beyond. Now, new research involving Dr. Andrew Tanentzap, Canada Research Chair of Climate Change and Northern Ecosystems at Trent University, is offering a new timeframe for the crustacean's origins in North America.
Read more at:
https://www.trentu.ca/news/story/26/09/24/new-scientific-tools-reveal-one-of-canadas-worst-invasive-species-has-been-here-much-longer-than-we-thought
https://www.ofah.org/oodonline/news/history-of-spiny-water-flea-rewritten/
The spiny water flea, one of Canada’s most damaging invasive species, has been in Ontario much longer than previously believed. Story in the comments.
📸 Andrew Barcham, OPP
OFAH Foundation
Trent University
Queen's University