The Impact of Tsunami on Seagrass Ecosystem in Tanjung Lesung, Banten, Indonesia
Muta Ali Khalifa,
Ani Rahmawati,
Forcep Rio Indaryanto,
Luky Adrianto,
Syamsul Bahri Agus,
Fery Kurniawan,
Aldi Agus Setiawan,
Desy Aryani,
Agustin Rustam
Affiliations
Muta Ali Khalifa
Fisheries Department, Faculty of Agriculture, University of Sultan Ageng Tirtayasa,
Jl. Raya Jakarta KM 4, Serang 42124, Indonesia
Ani Rahmawati
Fisheries Department, Faculty of Agriculture, University of Sultan Ageng Tirtayasa,
Jl. Raya Jakarta KM 4, Serang 42124, Indonesia
Forcep Rio Indaryanto
Fisheries Department, Faculty of Agriculture, University of Sultan Ageng Tirtayasa,
Jl. Raya Jakarta KM 4, Serang 42124, Indonesia
Luky Adrianto
Department of Aquatic Resource Management, Fisheries and Marine Science Faculty, IPB University,
Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia
Center for Coastal and Marine Resources Studies, IPB University (Bogor Agricultural University), Indonesia
Syamsul Bahri Agus
Department of Marine Science and Technology, Fisheries and Marine Science Faculty, IPB University,
Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia
Fery Kurniawan
Department of Aquatic Resource Management, Fisheries and Marine Science Faculty, IPB University,
Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia
Center for Coastal and Marine Resources Studies, IPB University (Bogor Agricultural University), Indonesia
Aldi Agus Setiawan
Fisheries Department, Faculty of Agriculture, University of Sultan Ageng Tirtayasa,
Jl. Raya Jakarta KM 4, Serang 42124, Indonesia
Desy Aryani
Fisheries Department, Faculty of Agriculture, University of Sultan Ageng Tirtayasa,
Jl. Raya Jakarta KM 4, Serang 42124, Indonesia
Agustin Rustam
Pusat Riset Kelautan, BRSDMKP Kementerian Kelautan dan Perikanan Indonesia,
Jl. Pasir Putih 1 Ancol Timur, Jakarta 14430, Indonesia
The Sunda Strait Tsunami (end of 2018) has an impact on the seagrass ecosystem in Tanjung Lesung. This paper described the seagrass ecosystem’s changes after the tsunami disaster. Sentinel-2 satellite image processing in 2018 and 2019 was used to see changes in the seagrass area. The field data were collected from May–July 2019, including the types of seagrass ecosystems based on data seagrass existence, density and biomass. Then, the seagrass sample was analyzed biomass after the tsunami disaster. The results showed that the data from 2018 – 2019 showed decreased seagrass area from 105.86 to 77.07 ha. Seagrass density dropped quite dramatically, and the species of Halodule uninervis was no longer found. The ratio of after tsunami BG/AbG dry biomass has doubled compared to before the tsunami, which indicates the seagrass's lower biomass is higher than the upper part allegedly due to tsunami impacts. Based on the results obtained, it can be concluded that the seagrass ecosystems changed and disrupted by the tsunami. Keywords: Seagrass, Tanjung Lesung, Tsunami, Sentinel-2
