Blue-green Algae
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Blue-green algae, or cyanobacteria, are a naturally occurring part of the
food chain. Although they are most closely related to
bacteria, they contain chlorophyll and depend on sunlight to grow, like plants.
Blue–green algae can be found all over the world, and occur in Florida’s
freshwater and brackish habitats, such as lakes, rivers and estuaries.
Blue-green algae are common throughout the United States.
Some, but not all, blue-green algae can produce toxins that can contribute to
environmental problems and affect public health. Scientists know little about
what causes the algae to produce these toxins. Even those blue-green algae that
are known to produce toxins do not always do so. You can find more information
on health aspects of blue-green algae from the
Florida
Department of Health.
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The occurrence of blue-green algae is natural and has
occurred throughout history. Still, to better understand the phenomenon, Florida
monitors blue-green algae closely because nutrient (such as nitrogen and
phosphorus) pollution appears to intensify blue-green algae outbreaks. The state
is taking long-term measures that will reduce nutrient loading and improve water
quality.
Algal blooms were documented in Florida’s coastal
waters as early as the 19th century. In 1998, recognizing the need to assess the
status of toxic microalgae in Florida, the state legislature approved funding
for the
Florida Harmful Algal Bloom Task Force. The Task Force
was created to address potential concerns regarding microalgae, including
blue-green algae, through monitoring and investigation. Information on
blue-green algae and other harmful algal bloom events is available from the
Florida Fish and Wildlife Conservation Commission's
Fish and Wildlife Research Institute and from the Florida
Department of Health
Aquatic Toxins Program.
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"There are no short term solutions to rectifying the
situation; this is a naturally occurring phenomenon that the
State monitors closely. However, the state is taking
measures that in the long-term will reduce nutrient loading
and improve water quality."
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