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Snail-eradication repeat treatment
closes Windsor boat ramp on Newnans Lake
May 12, 2008
Contact: Karen Parker, 386-758-0525
The Windsor boat ramp on Newnans Lake will be
closed May 15 and 16 to eradicate island apple snails.
According to Florida Fish and Wildlife
Conservation Commission (FWC) biologists, the lake was treated
in April, but egg masses are still being found. The lake will
receive an additional treatment Thursday to eradicate the snails
missed during the last treatment.
“Officials from the St. Johns River Water
Management District, FWC and the University of Florida have
discussed the current situation and agreed it’s imperative to
conduct another treatment before the snail population moves out
of the Windsor ramp area,” said Allen Martin, FWC regional
freshwater fish biologist.
This requires closing the Windsor ramp during
the treatment. The ramp and canal are scheduled to re-open May
17.
“We realize that Newnans is a very popular
fishing spot right now, and closing the ramp and canal for two
days may not be a popular decision,” Martin said. “Although
there were no problems with a fish kill during the previous
treatment, the possibility does exist. However, these snails
must be dealt with before they move to other areas, such as
Paynes Prairie, Orange Lake and Lochloosa Lake.”
These mollusks have huge appetites and can strip
large areas of aquatic vegetation in Florida’s waterways.
Equipped with both a gill and lung, they may migrate short
distances on land. One female can lay a new clutch of
approximately 1,000 eggs every 10 to 14 days. The snails can
reach reproductive size within six to eight weeks.
“The snails can grow as large as baseballs,”
Martin said. “We believe these snails in Newnans Lake were
released from aquariums. Their craving for aquatic vegetation is
what we’re concerned with. We certainly don’t want to end up
with ‘wet deserts’ for our lakes.”
Four nonnative apple snail species have been
observed in Florida.
There is one species native to Florida, the
Florida apple snail. This snail is a critical food web component
in Florida wetlands, contributing to the diets of turtles, fish,
alligators and wading birds. Apple snails are most notably the
exclusive food source of the endangered Florida snail kite.
“There is one main thing that Florida residents
and visitors can do to help us out with these island apple
snails,” Martin said. “Never release snails into the waters of
Florida. If you have one in your aquarium, please keep it
there.”
For more information on the snails and their
eggs, go to
MyFWC.com/nonnatives/Docs/FWC_applesnails_FLMS_handout.pdf
for photos and additional facts.
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