Alexandrium monilatum is a bioluminescent algae species common in harmful algal blooms in the Atlantic Ocean and Chesapeake Bay.
Didymo is a type of algae that forms dense mats at the bottom of freshwater streams. It is an invasive species.
The P. minimum is a dinoflagellate, meaning that it is a single-cell organism with two flagella.
Sea lettuce is a type of algae that grows in thin, green, wavy-edged sheets. It can be found in shallow waters throughout most of the Chesapeake Bay.