Amy Hamilton Vailea Maine Department of Marine Resources West Boothbay Harbor, ME Some species of phytoplankton (microscopic marine algae) can be toxic to humans and wildlife. Excessive growth or “blooms” of these phytoplankton are often called “red tide.” In Maine, species of Alexandrium produce toxins that cause Paralytic Shellfish Poisoning, and result in closures of … Continue reading DV-17-15 Expanding the Phytoplankton Monitoring Volunteer Program