RT null T1 Physical, Alteration and Destruction of Habitats: Regional Overview of the Physical Alteration and Habitat Destruction (PADH) in the Western Indian Ocean Region A1 United Nations Environment Programme, A1 Western Indian Ocean Marine Science Association, K1 Indian Ocean K1 mangrove swamp K1 coral reef K1 environmental impact assessment K1 dam K1 river K1 aquaculture K1 agriculture K1 land reclamation K1 tourism K1 Agriculture K1 Biodiversity YR 2004 FD 2004 LK https://wedocs.unep.org/handle/20.500.11822/30364 UL https://wedocs.unep.org/handle/20.500.11822/30364 NO The GPA has been mandated to provide guidance and develop activities to address nine source categories of land-based sources of marine degradation. These are: wastewater/sewage; Nutrients; Persistent Organic Pollutants; Radioactive substances; Heavy metals; Sediment mobilization; Litter; Oils (Hydrocarbons); and Physical Alteration and Habitat destruction (PADH). Physical alteration and habitat destruction is considered as the strongest reflection of the increasing population and economic activities in the coastal zone. PADH is also referred as "Habitat and Community Modification" by the Global International Water Assessment (GIWA) Programme or "Destruction and Alteration of Habitats" in other processes. DS UN Environment Document Repository RD Sep 17, 2026