Monitoring Changes in Coral Reef Habitat Cover on Beralas Pasir Island Using Spot 4 and Spot 7 Imagery From 2011 and 2018

Rosaria Damai and Viv Djanat Prasita and Kuncoro Teguh Setiawan (2020) Monitoring Changes in Coral Reef Habitat Cover on Beralas Pasir Island Using Spot 4 and Spot 7 Imagery From 2011 and 2018. International Journal of Remote Sensing and Earth Sciences, 17 (2). pp. 127-148. ISSN 0216-6739

Jurnal_Rosaria Damai_Univ.Hang Tuah Surabaya_2020.pdf

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Beralas Pasir is part of the Regional Marine Conservation Area (KKLD), which was established by the Bintan Regency Government with Bintan Regent Decree No. 261 / VIII / 2007. Water tourism activities undertaken by tourists on the island have had an impact on the condition of the coral reefs, as have other factors, such as bauxite, granite and land sand mining activities around the island. This research aims to determine changes in the coral reef habitat cover and the condition of the coral reefs around Beralas Pasir Island with a remote sensing function, using SPOT 4 imagery acquired on June 1, 2011 and SPOT 7 imagery from April 5, 2020. Data collection of environmental parameters related to the coral reefs was also made. The image processing used the Lyzenga algorithm to simplify the image classification process. The percentage of coral live cover around the island ranges from 26% - 53%; this has experienced a significant change, from 67,560 hectares in 2011 to 38,338 hectares in 2018, a total decrease in the area of 29,222 hectares. Some of the natural factors found in the research which have caused damage to the reefs were Drupella snails, the abundance of Caulerpa racemosa algae, and sea urchins. The majority of the coral reef types consist of Non-Acropora: Coral Massive, Coral, Coral Foliose, Coral Encrusting, Acropora: Acropora Tabulate, Acropora Encrusting, and Acropora Digitate

Item Type: Article
Uncontrolled Keywords: Monitoring, Coral Reefs, SPOT 4, SPOT 7, Beralas Pasir Island
Subjects: Teknologi Penginderaan Jauh > Penelitian, Pengkajian, dan Pengembangan > Teknologi dan Data Penginderaan Jauh > Perolehan Data
Divisions: Deputi Penginderaan Jauh > Pusat Pemanfaatan Penginderaan jauh
Depositing User: Dinar Indrasasi
Date Deposited: 30 Jun 2021 04:11
Last Modified: 01 Jul 2021 05:04

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