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Open-File Report 2014-1129

Benthic Habitat Map of the U.S. Coral Reef Task Force Watershed Partnership Initiative Kā‘anapali Priority Study Area and the State of Hawai‘i Kahekili Herbivore Fisheries Management Area, West-Central Maui, Hawai‘i

By Susan A. Cochran, Ann E. Gibbs, and Darla J. White

Thumbnail of and link to report PDF (7.2 MB)Abstract

Nearshore areas off of west-central Maui, Hawai‘i, once dominated by abundant coral coverage, now are characterized by an increased abundance of turf algae and macroalgae. In an effort to improve the health and resilience of the coral reef system, the Kahekili Herbivore Fisheries Management Area was established by the State of Hawai‘i, and the U.S. Coral Reef Task Force selected the Kā‘anapali region as a priority study area. To support these efforts, the U.S. Geological survey mapped nearly 5 km2 of sea floor from the shoreline to water depths of about 30 m. Unconsolidated sediment (predominantly sand) constitutes 65 percent of the sea floor in the mapped area. Reef and other hardbottom potentially available for coral recruitments constitutes 35 percent of the mapped area. Of this potentially available hardbottom, only 51 percent is covered with a minimum of 10 percent coral, and most is found between 5 and 10 m water depth.

First posted June 26, 2014

For additional information, contact:
Contact Information, Pacific Coastal and Marine Science Center
U.S. Geological Survey
Pacific Science Center
400 Natural Bridges Drive
Santa Cruz, CA 95060
http://walrus.wr.usgs.gov/

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Suggested citation:

Cochran, S.A., Gibbs, A.E., and White D.J., 2014, Benthic habitat map of the U.S. Coral Reef Task Force Watershed Partnership Initiative Kā‘anapali priority study area and the State of Hawai‘i Kahekili Herbivore Fisheries Management Area, west-central Maui, Hawai‘i: U.S. Geological Survey Open-File Report 2014-1129, 42 p., https://dx.doi.org/10.3133/ofr20141129.

ISSN 2331-1258 (online)



Contents

Abstract

Introduction

Data and Methods

Results

Future Outlook

Acknowledgments

References Cited

Appendix A. Detailed Classification Scheme


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