Invasion Science Research Institute

Invasive Pulse Coral

Several species of soft corals that have recently been found in parts of Hawai’i and the Caribbean, including Puerto Rico and Cuba. The two species of present concern in Florida are Unomia stolonifera and Xenia umbellata.

These corals come from the family of Xenia, and can be found throughout the Indo-Pacific region and the Red Sea

Pulse Corals have had a negative impact on local environments, as they can invade a wide variety of habitat types including coral reefs, seagrass meadows, and mangrove systems. The disruption of native plants and corals can cause a cascade of impacts leading to loss of biodiversity.

The invasive soft coral, Unomia stolonifera, that has invaded several regions around the globe

Invasive pulse coral, xenia umbellata, in a labratory setting

Economical impacts can also be felt as several industries rely on the marine life from these ecosystems to flourish.

These introductions are likely caused by intentional releases by marine aquarists, illegal aquaculture activities, fragments of soft corals attaching to boats, fishing gear, and other forms of incidental introduction.

What should you look for?

White to pink, long eights tentacle on polyps
Form 'mats' of coral over neighboring corals. rocks, or vegetation
Known for its dance-like or 'pulse' movements in ocean currents as it is unable to retract but open and close

How can you help?

If you are enjoying the tropical waters around Florida please take time to report what you find. Corals are sensitive creatures so please do not remove or touch any, but take photos and pass along observation you may make.

U.S. Geological Survey (USGS) has partnered with the University of Florida and other federal and state agencies to encourage people who believe they have spotted the invasive soft coral in Florida waters to report their sightings through the USGS Nonindigenous Aquatic Species website.

REPORT HERE