Pulsing xenia (Unomia stolonifera), a soft coral which is devastating Venezuela’s marine ecosystems and has been detected in Cuba, has been labeled as a potential threat to the Caribbean islands. The invasive species, originally from the Indo-Pacific, is believed to have been introduced via the illegal aquarium trade. Since this species can reproduce sexually and asexually (or fragment), even small pieces can regenerate to spread. Once introduced it will quickly take over shallow reefs and hard substrate at depths of 0-50 meters, outcompeting local corals and seagrass for space.
Continuous monitoring to prevent the spread of this species, particularly in high-risk areas such as marine harbors and oil facilities, is paramount. Early detection plays a pivotal role in mitigating the threat.
The public can help. Local communities, recreational divers, tourists, and all stakeholders are urged to report sightings (submitting photos, location and date) to their respective protected area management organization.
