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Coral bleaching data by site, West Hawaii, 2010-2011


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Grossman, E.E., Marrack, L., Kramer, L. and Most, R., 2019, Coral cover and health determined from seafloor photographs and diver observations, West Hawai'i, 2010-2011: U.S. Geological Survey data release,


Observations of bleached coral were documented by scuba divers along pre-determined transects and are presented here in comma-separated format. Included in the table are coral species observed, colony size, size of bleached area on colony, and seawater temperature.


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BleachingSummary_June2010.csv 1.85 KB text/csv
BleachingSummary_Oct2010.csv 1.33 KB text/csv
BleachingSummary_Oct2011.csv 5.03 KB text/csv
“West Hawaii Coral Transect Map”
thumbnail 572.34 KB image/jpeg


As part of an integrated study to assess projected impacts of land-use and climate change on nearshore habitat conditions and coral health, the U.S. Geological Survey (USGS) Pacific Coastal and Marine Science Center (PCMSC) initiated an investigation of nearshore water properties and coral health indicators along the west Hawaii Island coast. The project and data generated provide fundamental baseline data to track change and important boundary condition data to interpret characteristics of coral health related to water quality along a gradient in exposure to urban impacts and submarine groundwater discharge.

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