Special Section on Aquatic Remote Sensing Applications in Environmental Monitoring and Management

Assessing the effect of management zonation on live coral cover using multi-date IKONOS satellite imagery

[+] Author Affiliations
Candace M. Newman, Anders J. Knudby, Ellsworth F. LeDrew

University of Waterloo

J. Appl. Remote Sens. 1(1), 011504 (December 26, 2007). doi:10.1117/1.2822612
History: Received April 2, 2007; Revised September 16, 2007; Accepted October 17, 2007; December 26, 2007; Online December 26, 2007
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Abstract

Change in live coral cover within the nine different management zones of the Marine Protected Area (MPA) around Bunaken Island, Indonesia, was estimated using IKONOS satellite image data for 2001 and 2004. For both years, field data were used to classify image pixels on a semi-quantitative scale based mainly on coral cover. The resulting substrate maps had overall classification accuracies of 78% and 81%, respectively. Change was estimated for each zone using a post-classification comparison. Results indicated an increase in live coral cover in one zone, a decrease in two other zones, and no change in the remaining six zones. The results show no obvious influence of the MPA's zonation plan on changes in live coral cover in the three year period investigated, and the study demonstrates the use of remote sensing to determine change in live coral cover, to assess zonation effectiveness, and to guide management efforts.

© 2007 Society of Photo-Optical Instrumentation Engineers

Citation

Candace M. Newman ; Anders J. Knudby and Ellsworth F. LeDrew
"Assessing the effect of management zonation on live coral cover using multi-date IKONOS satellite imagery", J. Appl. Remote Sens. 1(1), 011504 (December 26, 2007). ; http://dx.doi.org/10.1117/1.2822612


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