Concern About Harmful Algal Blooms

While algae are a fundamental element of productive and healthy aquatic environments, harmful algal blooms (HAB) have become a growing problem in Florida. Now, scientists across the state are working together to find lasting solutions. One approach is to correlate cell counts with statistically-significant changes in shore-side activity. In addition to cell counts, researchers are also strategizing ways to prevent bi-valves that spread blooms. Wind speed and direction affect the extent to which these endeavors are successful.

Current and existing UF/IFAS research has led to meaningful discoveries, as well as methods by which to discourage the spread of harmful algal blooms and lessen their impact on the state.

Harmful Algal Bloom Impacts

The repercussions of harmful algal blooms are far-reaching, and can be felt in nearly every aspect of society.

Most algae are non-toxic and pose little danger to humans and animals. However, excess amounts create negative impacts on public health, the natural function of Florida’s waterways, and even the economic impact that lakes, rivers, and estuaries provide to local and state economies.

Marine Life and Aquatic Environment

Harmful algal blooms negatively affect water quality. This poses a threat to the health and vitality of marine life and aquatic vegetation. In recent years, scientists have logged higher than normal mortality rates of fish and marine life — including sharks, dolphins, and manatees.

Public Health

Few algae have been definitively linked to human disease. However, certain varieties produce toxins harmful to the well-being of pets and humans. One type of algae in particular (Karenia brevis) is believed to cause gastrointestinal illness, respiratory issues, and eye irritation.

Florida's Economy

The true cost of harmful algal blooms to Florida’s economy is still being explored. However, in a locale that depends on agriculture and tourism to survive, blooms are detrimental to the financial backbone of the state. Affecting both fresh and saltwater environments, the impact of HAB on marine recreation and tourism could be devastating — both financially and in terms of public health.