Chemical Algaecides for Red Tide Control

The project, led by H. Dail Laughinghouse IV at the University of Florida, investigates the use of chemical algaecides to control harmful algal blooms (HABs) caused by Karenia brevis, commonly known as red tide, in Florida’s coastal waters. Given the significant impact of these blooms on marine life, human health, and the economy, the study aims to evaluate the efficacy of several USEPA-registered algaecides. The research focuses on understanding the effects of these algaecides on K. brevis cell density, chlorophyll-a concentrations, and brevetoxin levels. The methodology involves laboratory testing of copper-based and peroxide-based algaecides at various concentrations. The expected outcomes include providing data to support the use of chemical algaecides as a viable short-term solution for managing red tides, contributing to the peer-reviewed database, and informing future regulatory and management strategies.