Mark Amechi is the Founder and Director of Tropo Farms, West Africa's biggest fresh-water fish farm, which now produces and sells 6,000 tonnes of tilapia every year.

Set up in Ghana in 1997, it shows Africa's potential to develop its aquaculture sectors. With marine fisheries under such pressure, aquaculture can help African nations to ensure food and nutrition security and to support transformative growth.

Between 2000 and 2010, Africa's aquaculture grew almost tenfold to produce 600,000 tonnes of fish per year. Much of this growth took place in a handful of countries, including Ghana.

Mark expects his company will soon produce more than 10,000 tonnes. And in about five to ten years, Ghana could be exporting its fish, Mark says.