Warming oceans are pushing harmful algal blooms into polar waters

[Grim Reaper 6]

A. catenella blooms are a problem that’s long plagued fisheries at lower latitudes, including southeastern Alaska. But in recent years, scientists have found evidence the blooms are becoming a threat to Arctic communities as well. During previous research cruises, Fachon’s Ph.D. adviser, WHOI’s Donald Anderson, sampled seafloor sediments and documented “massive” beds of A. catenella cysts, a dormant form of its life cycle, stretching more than 1000 kilometers from the Bering Strait to the western edge of the Beaufort Sea. When the conditions are right, these cysts can seed harmful blooms in surface waters..

https://www.science.org/content/article/warming-oceans-are-pushing-harmful-algal-blooms-polar-waters