Mosquito Surveillance and Control

December 5, 2012

The U. S. Fish and Wildlife Service (Service) is re-evaluating a proposal to allow mosquito surveillance and control on the Wertheim and Seatuck units of the Long Island National Wildlife Refuge Complex, Suffolk County, New York. In 2006, the Refuge completed a Comprehensive Conservation Plan and, at that time, mosquito surveillance and control were evaluated and found to be a compatible use. A compatible use is a proposed or existing wildlife-dependent recreational use or any other use of a national wildlife refuge that, based on sound professional judgment, will not materially interfere with or detract from the fulfillment of the National Wildlife Refuge System mission or the purpose of the National Wildlife Refuge. A compatibility determination document is developed to facilitate evaluation of such uses.

The compatibility determination conducted in 2006 was valid for 5 years, but is now expired and needs to be re-evaluated. Work would include weekly mosquito surveillance between May and September and larvicide treatment when it is determined that the abundance and distribution of larvae present on the refuge marshes exceeds the threshold identified in the compatibility determination document. The ultimate goal is to reduce the risk of a serious health threat to both humans and wildlife.

The mission of the National Wildlife Refuge System is to administer a national network of lands and waters for the conservation, management, and where appropriate, restoration of the fish, wildlife, and plant resources and their habitats within the United States for the benefit of present and future generations of Americans. The purpose for which Wertheim and Seatuck National Wildlife Refuges were established was for the conservation of migratory birds and other wildlife.

The Service would like to get your feedback on these proposed refuge uses. We are especially interested in any additional information that you may have or any studies regarding the effects of such uses. A compatibility determination has been drafted, and is available for public review and comment. All comments received within 14 days following the date of this notice will be considered in finalizing that determination. We hope to make a final decision on these proposed uses within 30 days following closure of the public comment period.

To request a copy of the compatibility determination, to learn the final decision regarding these proposed uses, or for more information, contact Michelle Potter - Refuge Manager, Long Island National Wildlife Refuge Complex, by mail at 340 Smith Rd., Shirley, NY 11967; by telephone at 631-286-0485; or by e-mail at; you may also visit our website to view the compatibility determination document below.

2012 Draft Compatibility Determination for Mosquito Surveillance and Control on Long Island National Wildlife Refuge Lands (pdf)