STUDY OF CORAL REEFS CHANGES AROUND THE PANGGANG ISLAND, KEPULAUAN SERIBU, DKI JAKARTA

• Main Author: LEEDSYAWATI ZEINTRINANDA (NIM : 12913035), AULIA
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/25921
• Institution: Institut Teknologi Bandung

<p align="justify">Panggang Island is one of the tourism places that rely on coral reef as one of it attractiveness. Growth of coral reefs can be threatened because it is limited by various factors such as salinity, temperature, light and solar radiation, nutrients, and depth. The objective of this study was to examine changes in coral reefs around Panggang Island and see whether oceanographic parameters such as temperature, chlorophyll-a, salinity, pH, brightness, hotspots, thermal stress, El Niño Southern Oscillation (ENSO), and Indian Ocean Dipole (IOD) influenced the change. The method used in this research is remote sensing and field data observation. The image data used comes from Landsat 7 ETM+ (2001-2003) and Landsat 8 OLI / TIRS (2013-2016) for coral reefs. Aquarius Data (2013-2016) for salinity, and Aqua Modis data (2002-2003 and 2013-2016) for chlorophyll-a. Field data is seawater quality data in April 2016 obtained from Pusfatja, LAPAN. <br /> <br /> The results showed that the change of coral width around Panggang Island, Kepulauan Seribu was degraded during the research period (2001-2016) with the average rate of change -10.74 ha / year. The highest coral degradation occurs in the 2013-2014 period of 42.9 ha, this is due to thermal stress in December 2013 to April 2014 which reached -2.25oC / week. In 2014-2015 the highest coral area increased by 37.3 ha, this is due to the many coral planting activities in the study area. During 2013-2016 there is only one hotspot, so the phenomenon does not affect the change of coral width. Parameters that meet the reef growth standards in April 2016 around Panggang Island are chlorophyll-a and pH. While that does not meet is temperature, salinity, and brightness.<p align="justify">