Skip to main content
U.S. flag

An official website of the United States government

Productivity of a coral reef using boundary layer and enclosure methods

November 9, 2011

The metabolism of Cayo Enrique Reef, Puerto Rico, was studied using in situ methods during March 2009. Benthic O2 fluxes were used to calculate net community production using both the boundary layer gradient and enclosure techniques. The boundary layer O2 gradient and the drag coefficients were used to calculate productivity ranging from -12.3 to 13.7 mmol O2 m-2 h-1. Productivity measurements from the enclosure method ranged from -11.0 to 12.9 mmol O2 m-2 h-1. During the study, the mean hourly difference between the methods was 0.65 mmol O2 m-2 h-1 (r2 = 0.92), resulting in well-reconciled estimates of net community production between the boundary layer (-33.1 mmol m-2 d-1) and enclosure (-46.3 mmol m-2 d-1) techniques. The results of these independent approaches corroborate quantified rates of metabolism at Cayo Enrique Reef. Close agreement between methods demonstrates that boundary layer measurements can provide near real-time assessments of coral reef health.

Citation Information

Publication Year 2011
Title Productivity of a coral reef using boundary layer and enclosure methods
DOI 10.1029/2010GL046179
Authors W. R. McGillis, C. Langdon, B. Loose, K. K. Yates, Jorge Corredor
Publication Type Article
Publication Subtype Journal Article
Series Title Geophysical Research Letters
Series Number
Index ID 70005043
Record Source USGS Publications Warehouse
USGS Organization St. Petersburg Coastal and Marine Science Center