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Open-File Report 2011–1291

Prepared in cooperation with the National Park Service

Gap Analysis of Benthic Mapping at Three National Parks: Assateague Island National Seashore, Channel Islands National Park, and Sleeping Bear Dunes National Lakeshore

Kathryn V. Rose, Amar Nayegandhi, Christopher S. Moses, Rebecca Beavers, Dawn Lavoie and John C. Brock

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Executive Summary

The National Park Service (NPS) Inventory and Monitoring (I&M) Program initiated a benthic habitat mapping program in ocean and coastal parks in 2008–2009 in alignment with the NPS Ocean Park Stewardship 2007–2008 Action Plan. With more than 80 ocean and Great Lakes parks encompassing approximately 2.5 million acres of submerged territory and approximately 12,000 miles of coastline (Curdts, 2011), this Servicewide Benthic Mapping Program (SBMP) is essential. This report presents an initial gap analysis of three pilot parks under the SBMP: Assateague Island National Seashore (ASIS), Channel Islands National Park (CHIS), and Sleeping Bear Dunes National Lakeshore (SLBE).

The recommended SBMP protocols include servicewide standards (for example, gap analysis, minimum accuracy, final products) as well as standards that can be adapted to fit network and park unit needs (for example, minimum mapping unit, mapping priorities). The SBMP requires the inventory and mapping of critical components of coastal and marine ecosystems: bathymetry, geoforms, surface geology, and biotic cover. In order for a park unit benthic inventory to be considered complete, maps of bathymetry and other key components must be combined into a final report (Moses and others, 2010). By this standard, none of the three pilot parks are mapped (inventoried) to completion with respect to submerged resources. After compiling the existing benthic datasets for these parks, this report has concluded that CHIS, with 49 percent of its submerged area mapped, has the most complete benthic inventory of the three. The ASIS submerged inventory is 41 percent complete, and SLBE is 17.5 percent complete.

First posted February 9, 2012

For additional information contact:
John C. Brock
12201 Sunrise Valley Dr.
Room 2D324
Reston, VA 20192

Decision Support for Coastal Science and Management

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Suggested citation:

Rose, K.V., Nayegandhi, Amar, Moses, C.S., Beavers, Rebecca, Lavoie, Dawn, and Brock, J.C., 2012, Gap analysis of benthic mapping at three national parks—Assateague Island National Seashore, Channel Islands National Parks, and Sleeping Bear Dunes National Lakeshore: U.S. Geological Survey Open-File Report 2011–1291, 60 p.


Executive Summary

Introduction and Background

Needs Assessment Form

Pilot Gap Analysis: Assateague Island National Seashore

Pilot Gap Analysis: Channel Islands National Park

Pilot Gap Analysis: Sleeping Bear Dunes National Lakeshore

Concluding Remarks

Appendix A: Abbreviations and Acronyms

Appendix B: Ocean and Great Lake Parks with Submerged Acreage

References Cited

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