In January 2024, the U.S. Navy cleared over 33,850 square feet of invasive octocorals from Pearl Harbor, but these fast-spreading corals have returned, threatening the delicate balance of the local marine ecosystem. This fall, a more extensive effort will commence to remove these harmful species. Nicole Olmsted, Conservation Manager for Commander, Navy Region Hawai‘i (CNRH), shared that the upcoming project will combine tarp smothering and manual removal methods and could take years to complete.
The invasive species, including the highly aggressive Pulse coral (Unomia stolonifera) and Kenya tree coral (Capnella spicata), are known for their rapid spread and ability to overtake reef-building corals, compromising reef biodiversity. The Navy’s efforts are supported by a collaborative network of local agencies and organizations, all working to mitigate the environmental impact of these invaders.
Community engagement is also a critical component of this battle. The Navy, in partnership with the Hawai‘i Department of Agriculture (HDOA), Department of Land and Natural Resources (DLNR), University of Hawai‘i, and others, is spearheading the “Don’t Let it Loose” campaign.
This initiative seeks to prevent the release of illegal marine species into the ocean through educational talks, webinars, and a new Waikiki Aquarium exhibit featuring invasive species. The public can surrender illegal or unwanted aquarium species at the aquarium without penalty. This cooperative effort highlights the importance of community action. As Olmsted noted,
“Eradication is not easy and it takes everyone working together.” With continued collaboration, Hawai‘i’s marine ecosystems can be protected from further harm. For more information about the “Don’t Let it Loose” campaign and a schedule of events, visit www.DontLetItLooseHI.org.