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HomeNewsArchivesLionfish, A Coral Threat, Found In St. Croix Waters

Lionfish, A Coral Threat, Found In St. Croix Waters

Dec. 12, 2008 — A sharp-eyed dive instructor spotted a lionfish, a non-native species that threatens coral reefs, near the Frederiksted Pier on Nov. 25, caught it and turned it over to the Division of Fish and Wildlife's William Coles.
"I have it in a bottle," said Coles, who serves as the division's chief of environmental education and endangered species coordinator, said.
He scoured the Frederiksted Pier area, but said he didn't turn up any more lionfish.
While there was an earlier report of a lionfish spotting at Salt River, St. Croix, Coles said he was not able to confirm that report. No one has seen any lionfish in St. Thomas or St. John waters.
Lionfish, a voracious predator, pose a big threat to the territory's reefs because they eat the fish that keep the reefs clean of algae. When algae cover the reefs, they die.
"They're really competitive and will eat anything," Coles said.
They eat both night and day, downing fish, crustaceans and mollusks in huge quantities.
The fish, native to the Indo-Pacific region, often inhabit aquariums. They got a hold in the Atlantic Ocean and now the Caribbean after Hurricane Andrew devastated South Florida in 1992. People dumped aquarium contents into the ocean when they didn't have any electricity to keep the aquariums running.
Divers first spotted them off Florida in 1994, but since then they've migrated all the way north to the Rhode Island coast, east to the Bahamas and south to the Dominican Republic.
Scientific studies at the Perry Institute for Marine Research's Caribbean Marine Research Center at Lee Stocking Island in the Bahamas showed no lionfish until 2005, when one was spotted. The number rose to two in 2006, to 107 in 2007 and in the first three weeks of the 2008 study season, to 153.
Lionfish have few predators. Nassau grouper is one, but Coles said grouper has been fished out in the Virgin Islands.
Lionfish are often found under overhanging coral such as elkhorn. They're also found in fish pots because they enter to eat the other fish.
Coles has mounted an educational campaign to alert residents about the lionfish perils. He's started with dive shops on St. Croix, and hopes to contact those on St. Thomas and St. John.
However, he's a one-man operation and Fish and Wildlife's funds are tight.
Divers can capture it by pushing it into a bag. Reporting the sighting and its location is the next best thing. The fish have spines that can hurt, but the injury isn't fatal.
Coles is the point person for making reports of lionfish sightings. Call 772-1955 or after hours at 643-0800.
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