RT null T1 Transboundary Diagnostic Analysis of the Large Marine Ecosystems of the Western Indian Ocean Volume 1 : Baseline A1 United Nations Environment Programme, A1 Food and Agriculture Organization of the United Nations, K1 Indian Ocean region K1 marine resources conservation K1 nature conservation K1 fishery K1 biological diversity K1 marine pollution K1 fishery legislation K1 Adaptation K1 Biodiversity K1  Coastal and Marine Ecosystems K1 Global Environment Facility K1 Natural Resources K1 Pollution K1 Waste management PB United Nations Development Programme SN 978-0-620-57042-8 YR 2012 FD 2012-09 LK https://wedocs.unep.org/handle/20.500.11822/26101 UL https://wedocs.unep.org/handle/20.500.11822/26101 NO This report synthesizes national and regional analyses to diagnose transboundary issues affecting marine and coastal ecosystems and fisheries in the Western Indian Ocean region, drawing on country Marine Ecosystem Diagnostic Analyses, specialist reports, cruises, and structured national and regional consultations. It compiles baseline biophysical and socio-economic conditions, including biodiversity and habitat status, fisheries exploitation patterns, and coastal livelihoods and dependence on marine resources. The work applies inventories and gap analyses of existing information, complemented by retrospective analyses for major fisheries groupings, and uses prioritisation, impact-chain, and causal-chain approaches to identify priority problems and their direct, underlying, and root causes. It evaluates regional governance options and concludes that an informal regional collaboration mechanism is the preferred approach. DS UN Environment Document Repository RD Sep 23, 2026