Whidayanti, E. et al. 2026. A spatial study of mangrove ecosystems toward coastline changes in the west coastal area of Pandeglang Regency, Banten. Journal of Geospatial Science and Analytics. 2, 2 (Jul. 2026), 149–158. DOI:https://doi.org/10.58524/jgsa.v2i2.130.