Arusha . For generations, Zanzibar’s blue economy has been built around small fishing boats venturing a few miles from shore and women harvesting seaweed along the islands’ coastline.
Today, however, the islands are positioning themselves to capture a share of a global seaweed market projected to reach $11.8 billion by 2030 while simultaneously seeking investment in fisheries infrastructure, aquaculture and marine exports.
As government officials, financiers and development partners gathered at the Tanzania Investment Summit 2026 in Arusha on Tuesday, the conversation was no longer centred on livelihoods alone.
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