ABUNDANCE OF Acanthaster planci AS HEALTH OF CORAL INDICATOR IN TUNDA ISLAND, SERANG REGENCY, BANTEN

Neviaty P. Zamani
2015 Jurnal Ilmu dan Teknologi Kelautan Tropis  
<p>The abundance of <span style="text-decoration: underline;">Acanthaster</span> <span style="text-decoration: underline;">planci</span> can be used as a health indicator of coral reef ecosystem. A high abundance of <span style="text-decoration: underline;">A.</span> <span style="text-decoration: underline;">planci</span> become phatogen on coral and an indication of unhealthy coral reef ecosystem. The objective of this study was to evaluate health of coral reef ecosystem based on the abundance
more » ... ed on the abundance of <span style="text-decoration: underline;">A.</span> <span style="text-decoration: underline;">planci</span> and the percent coral cover at Tunda Island, Banten. Field observation conducted in January 2014. The stations were selected by purposive sampling method and based on four-wind direction i.e., north, south, east, and west. Reef data was measured using Line Intercept Transect (LIT), while sampling method for <span style="text-decoration: underline;">A</span>. <span style="text-decoration: underline;">planci</span> using Belt Transect. Results showed that the water temperature ranged of 26-28°C, brightness 100%, current speed ranging between 0.05 ms<sup>-1</sup>and 0.19 ms<sup>-1</sup>, and salinity of 30-32 ppt. The water quality values showed a normal range which support the life of the coral and <span style="text-decoration: underline;">A.</span> <span style="text-decoration: underline;">planci</span>. The Percent coral cover ranged of 54.95-73.00% indicating a good condition. The abundanceof <span style="text-decoration: underline;">A.</span> <span style="text-decoration: underline;">planci</span> was of 0.02-0.03 ind/m<sup>2</sup>. Result showed that coral cover percentage and the abundance of <span style="text-decoration: underline;">A.</span> <span style="text-decoration: underline;">planci</span> did not have a significant relationship. Eventhough an <span style="text-decoration: underline;">A.</span> <span style="text-decoration: underline;">planci</span> eats the coral polip, but with small amount of <span style="text-decoration: underline;">A.</span> <span style="text-decoration: underline;">planci</span> in the coral reef, they merely help to clean the old and unhealthy polip. This activity will help corals to regenerate their polip. Overall, based on the small abundance of <span style="text-decoration: underline;">A</span>. <span style="text-decoration: underline;">planci</span> and the relatively high coral cover percentage, the coral reef ecosystem in Tunda island was categorised in a healthy condition. </p> <p> </p> <strong>Keywords: </strong>A. planci, coral reef, Tunda Island
doi:10.28930/jitkt.v7i1.9811 fatcat:odwkqm7fejfc7np6ekv7efoioq