A waterproof laminated card explaining how boaters can help prevent the spread of invasive plants and animals is now available from the Tampa Bay Estuary Program.

The “Boater’s Alert” card provides photos and basic information about six invasive species that already are found in Tampa Bay and other Florida waters, or are likely to arrive here in the near future. Existing invaders include the Asian green mussel and the Australian spotted jellyfish. Potential invaders include the carnivorous jellyfish and Caulerpa taxifolia, a toxic species of algae.

The boater’s card asks those who are in or on the water frequently to be on our “Eyes On The Bay,” looking out for the listed species, and reporting sightings to an 800 number or a website maintained by the U.S. Geological Survey. Timely reporting of sightings is important both to track the spread of existing invasive plants and animals, and to prevent the spread of new intruders.

The card also provides tips on how boaters can help prevent spreading invasive species from one waterway to another by properly washing their boat and disposing of bait.

Non-native plants and animals released into Florida’s environment cause millions of dollars in damage each year. Economic costs include clogged water intake pipes and machinery, and fouled boat hulls and propellers. Environmental impacts include a dramatic loss of bio-diversity as the invaders (with no natural predators in their new home) outcompete more beneficial native plants and wildlife.

The Boater’s Alert card was developed by the Tampa Bay Estuary Program, the U.S. Coast Guard Auxiliary in Manatee County, and Florida Sea Grant. Financial support was provided by a grant from the Boat U.S. Foundation. The card is one of several educational materials developed as part of the Estuary Program’s “Eyes On The Bay” invasive species awareness campaign.