Sustainability assessment of mangrove management in Madura Strait, Indonesia: A combined use of the rapid appraisal for mangroves (RAPMangroves) and the remote sensing approach

• Published in: Marine policy Vol. 163; p. 106128
• Main Authors: Hidayah, Zainul, As-syakur, Abd. Rahman, Rachman, Herlambang Aulia
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.05.2024
• Subjects: Madura Strait; Mangroves; Rapid appraisal for mangroves; Remote sensing; Mangroves; Madura Strait; Remote sensing; Rapid appraisal for mangroves
• ISSN: 0308-597X
• DOI: 10.1016/j.marpol.2024.106128

Indonesia is one of the countries that has the largest mangrove forest in the world. However, degradation of this ecosystem is still happening in many coastal regions, therefore it is required to carry out sustainable mangrove management. The aims of this study were to measure the level of mangrove sustainability and its management from multi-dimensional perspectives using the rapid appraisal for mangroves (RAPMangroves) and combined it with the remote sensing approach in Madura Strait, Indonesia. Multi-temporal Landsat satellite data in 2000, 2013 and 2020 were used to identify the sequential change of the mangroves area, and use for rapid appraisal analysis. Furthermore, the RAPMangroves technique, which is a non-parametric multi-dimensional scaling (MDS) method, was applied to analyse the sustainability status of the mangroves ecosystem. The results showed that the mangrove area in the Madura Strait experienced an increase of approximately 3427.371 Ha, expanding from 5327.830 Ha in 2000–8755.201 Ha in 2020. The expansion rate of the mangrove area in the study area reached 163.208 Ha year−1 over the course of the study period. One of the possibility causes of the expansion of mangrove areas is due to high sedimentation rates, resulting in rapid natural growth of mangroves on the west and south coasts of the Madura Strait. Moreover, RAPMangroves results revealed that from four dimensions, which are ecological, institutional, social, and economic, the averaged cumulative index of mangrove ecosystem sustainability was 58.19, within a threshold denoting a “moderately sustainable” status. The leverage analysis of RAPMangroves in Madura Strait suggested that several alternative strategies, where the mangroves conservation and land rehabilitation together with the efforts to raise coastal community awareness are mostly recommended actions that should be considered to increase the sustainability status of mangroves ecosystems in that area. This study provides information that is useful for policy makers, scholars, and any others who concerned about the preservation of mangroves.