In the summer of 2022, toxins produced by the brackish-water algae Prymnesium parvum killed about 1,000 metric tons of fish, snails, and mussels in the River Oder. In a study published in the journal ...

Water beckons Minnesotans this time of year, especially our lakes. But something in it can turn us away, even if other animals and organisms need it. "Algae does have a purpose. It's the base of the ...