Freshwater Diatoms: Small, Slimy, Stream Quality Monitors

by Taylor Wilcox Broadcast 7.18 and 7.20.2010, 7.26 and 7.31.2015, 9.1.2019 Listen:   The bottom of this shallow stream is covered with a complex community of algae, comprising many different species. Probably most abundant of all are the diatoms, many of which...