Aquatic Systems Fact Sheets

Man Made Lakes

There are three reasons that artificial lakes are created:

Water Management: Whether generating power, controlling flooding or for navigation or drinking water; humans have been building dams to create reservoirs for centuries. A detention pond is a low lying area that is designed to temporarily hold a set amount of water while slowly draining to another location. They are more or less around for flood control when large amounts of rain could cause flash flooding if not dealt with properly. Read more »

Midge Flies Fact Sheet

Are swarms of bugs keeping you inside?

Aquatic midge flies are non-biting insects found in lakes and ponds throughout Florida and are known by many common names including blind mosquito and fuzzy bill. They do not bite, suck blood, or carry disease like true mosquitoes do, so they are more of
a nuisance than anything.

Facts About Algae

Toxic Blue-green AlgaeIn freshwater lakes in Florida algae can make the water green and slimy. However, they are essential to the ecosystem, providing food for all types of animals including fish, insects, mollusks, zooplankton (microscopic animals), and humans. Algae occur naturally in all types of systems and are indicators of an ecosystem’s condition, including the amount and type of nutrients that run through the system. Read more »

Swimmers Itch

Swimmer’s Itch is a rash composed of red, itchy bumps that develop on the skin after swimming in freshwater lakes and ponds. This irritating rash is caused by a free swimming parasite that burrows into swimmers. Read more »

Avian Botulism (Limberneck Disease)


Avian Botulism is a paralytic, often fatal disease of wild and domestic birds resulting from the ingestion of a toxin produced by the bacterium Clostridium. Environmental studies have found seven toxins produced by botulinum bacterium; two of which, Types C & E, commonly cause mortality. Type C toxin occurs in the western United States and Canada. Read more »

Aeration in Florida Canals and Marinas

Amanda Quillen, Ph.D.Key Largo aeration boil

Download the Marina and Canal PDF Read more »

Florida Prohibited Invasive Aquatic Plants

Any plant that is overgrown or otherwise unattractive or unwanted, whether native or not is a weed. The Florida Exotic Pest Plant Council (FLEPPC) compiles invasive species lists that are revised every two years after professional botanists and others perform exhaustive studies of exotic plants. Read more »

Fish Kill Causes and Prevention

Fish die as a result of a wide variety of natural and unnatural causes. They may die of old age, starvation, body injury, predation, stress, suffocation, water pollution, diseases, parasites, toxic algae, severe weather or other reasons. Read more »

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