Red Tide Sarasota 2025. The map below lists current data on the presence of karenia brevis, the organism that creates algae blooms known as red tide; With its emphasis on direct mitigation and control, the red tide institute complements multiple other mote research programs focused on red tide ecology, biology, nutrients and water.

Red tide is a specific type of harmful algal bloom, caused by higher than normal concentrations of microscopic algae. Dead fish are starting to wash up on our shore due to toxins in the water.