# Availability of Draft National Management Plan for the Genus
Caulerpa
**AGENCY:**
Fish and Wildlife Service, Interior.
**ACTION:**
Notice of document availability and request for comments.
**SUMMARY:**
This notice announces the availability of the draft National Management Plan for the Genus *Caulerpa* (NMP) for public review and comment. The draft was prepared by the *Caulerpa* Working Group of the Aquatic Nuisance Species Task Force, as authorized by the Nonindigenous Aquatic Nuisance Prevention and Control Act of 1990 (16 U.S.C. 4701 *et seq.* ). Comments received will be considered in preparing the final NMP, which will guide cooperative and integrated management of *Caulerpa* species in the United States.
**DATES:**
Comments on the draft National Management Plan for the Genus *Caulerpa* should be received by September 16, 2005.
**ADDRESSES:**
The document is available from the Chair, *Caulerpa* Working Group, U.S. Fish and Wildlife Service, Stockton Fisheries Resource Office, 4001 N. Wilson Way, Stockton, CA 95205-2486; fax (209) 946-6355. It also is available on our Web page at *http://www.fws.gov/contaminants/Library.cfm.* Comments may be hand-delivered, mailed, or sent by fax to the address listed above. You may send comments by electronic mail to: *[email protected].*
**FOR FURTHER INFORMATION CONTACT:**
David Bergendorf, Chair, *Caulerpa* Working Group, at (209) 946-6400 ext. 342 or Kari Duncan, Acting Executive Secretary, Aquatic Nuisance Species Task Force at *[email protected].*
**SUPPLEMENTARY INFORMATION:**
In 1999 the Aquatic Nuisance Species Task Force (ANSTF) established the *Caulerpa taxifolia* Prevention Committee, which drafted the “Prevention Program for the Mediterranean strain of *Caulerpa taxifolia* .” *Caulerpa taxifolia* is a species that can compete with native plant species and impact biodiversity, can alter predator-prey interactions, is directly toxic to herbivores and indirectly toxic to invertebrates, and can shade and smother coral reefs.
Before the prevention plan could be implemented, *Caulerpa taxifolia,* a non-native invasive marine alga, was discovered in two California harbors. As a result of this discovery and the difficulty in distinguishing this non-native invasive strain from other *Caulerpa* species, the ANSTF requested that the existing draft program be modified and expanded to a National Management Plan (NMP) for invasive *Caulerpa* species.
The draft NMP, released today for public comment, outlines and prioritizes management strategies that Federal, State, and local agencies and the private sector can use to address *Caulerpa* introductions in U.S. waters. The goals of the draft NMP are: (1) Preventing the introduction and spread of *Caulerpa* species to areas in U.S. waters where they are not native; (2) early detection and rapid response to non-native *Caulerpa* species in U.S. waters; (3) eradication of *Caulerpa* populations, in waters to which they are not native, where feasible; (4) providing long-term adaptive management and mitigating impacts of populations of *Caulerpa* species in U.S. waters where they are not native and where eradication is not feasible; (5) educating and informing the public, agencies and policymakers to advocate for preventing the introduction and spread of *Caulerpa* species; (6) identifying research needs and facilitating research to fill information gaps; and (7) reviewing and assessing progress and revising the management plan and continuing to develop information to meet national management plan goals.
Many *Caulerpa* species are native to the warm coastal waters of North, Central and South America. Both Florida and Hawaii have native species of *Caulerpa* in their coastal waters. However, three *Caulerpa* species are of particular concern due to their invasions of U.S. and foreign waters: *C. taxifolia, C. brachypus,* and *C. racemosa.*
Once introduced, invasive *Caulerpa* species can spread via fragmentation or other vectors. *Caulerpa taxifolia* (Mediterranean strain) was listed as a Federal noxious weed by the U.S. Department of Agriculture under the Plant Protection Act on March 16, 1999. This listing prohibits importation, entry, exportation, or movement in interstate commerce of this strain of *C. taxifolia* . To date, eradication efforts for *C. taxifolia* in California have cost over $3.7 million, and over $500,000 has been allocated to study *C. brachypus* in Florida.
Dated: July 29, 2005.
Everett Wilson,
Acting Co-Chair, Aquatic Nuisance Species Task Force, Acting Assistant Director—Fisheries & Habitat Conservation.