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

Candace M. Newman; Anders J. Knudby; Ellsworth LeDrew

doi:10.1117/1.2822612

1 December 2007 Assessing the effect of management zonation on live coral cover using multi-date IKONOS satellite imagery

Candace M. Newman, Anders J. Knudby, Ellsworth LeDrew

Author Affiliations +

Journal of Applied Remote Sensing, Vol. 1, Issue 1, 011504 (December 2007). https://doi.org/10.1117/1.2822612

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.

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Candace M. Newman, Anders J. Knudby, and Ellsworth LeDrew "Assessing the effect of management zonation on live coral cover using multi-date IKONOS satellite imagery," Journal of Applied Remote Sensing 1(1), 011504 (1 December 2007). https://doi.org/10.1117/1.2822612

Published: 1 December 2007

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