microbial-mat-community-1

Cyanobacteria? Under a microscope, the blue-green stuff looked like a shapeless mass of tiny cells.

microbial-mat-community-2

Cyanobacteria? Under a microscope, the blue-green stuff looked like a shapeless mass of tiny cells.

floating-algae

filamentous-algae

A chlorophyta? Cyanobacteria? Help appreciated. Read more: Joe Pool waders, etc.