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The report evaluates 52 community-managed areas (CMAs) across Kenya, Madagascar, Mozambique, South Africa, and Tanzania using the Elinor tool. It finds that while 30% of CMAs have made substantial progress toward equitable governance, 40% are in early stages and 30% have made minimal progress. Key challenges include weak operational capacity, limited funding, and gaps in inclusive decision-making. The report argues that secure tenure and clearly defined rights are essential precursors to effective management and positive ecological and social outcomes.

The report assesses Tanzania's vulnerability to climate change, specifically sea-level rise and storm surges, and evaluates the role of ecosystem-based adaptation (EbA) in mitigating these risks. It finds that while Tanzania possesses critical ecosystems like mangroves and coral reefs, these are threatened by population growth and industrial development. The document highlights a gap in policy architecture, noting that EbA is not explicitly included in the current Nationally Determined Contribution (NDC). It identifies institutional fragmentation and a lack of spatial data as key challenges, while suggesting opportunities in blue carbon, sustainable ecotourism, and community-led co-management models.

The report examines the proposed Stiegler's Gorge hydropower dam in Tanzania, highlighting significant risks to the Selous Game Reserve (a World Heritage Site) and the Rufiji-Mafia-Kilwa Marine Ramsar Site. It argues that the project would cause irreversible damage to the region's Outstanding Universal Value, disrupt downstream ecosystems, and threaten the livelihoods of approximately 200,000 people. The document also questions the project's financial feasibility and reliability given climate change and suggests alternative energy sources such as natural gas, solar, wind, and geothermal power.

The report evaluates Tanzania's marine fisheries governance, highlighting a disconnect between progressive national policies and actual implementation. It identifies critical gaps in research capacity, institutional coordination between mainland Tanzania and Zanzibar, and the challenges of managing an open-access artisanal sector. A detailed case study of the Mafia Island Marine Park (MIMP) explores the tensions between conservation goals and the livelihoods of local communities, while questioning the degree of genuine community participation in the park's establishment.

Whale sharks are the world's largest fish, reaching up to 60 feet, and face threats from bycatch, the fin trade, plastic pollution, and climate change. WWF works to protect their habitats and reduce illegal trade, specifically supporting sustainable tourism and population monitoring on Mafia Island, Tanzania, where the population grew from 100 individuals in 2012 to around 180.