BOSTON, Massachusetts, US -- It's one thing to ramp up production, but it's quite another to build the market and distribution channels to consume it; this is the problem facing Ghanaian tilapia business Tropo Farms as its lofty expansion project picks up steam.

Tropo Farms needs additional capital, and over the past few months it has begun to court outside investment -- a growing trend across the continent's biggest aquaculture projects [...]