The impact of climate change on hydrology and other natural resources, and on many sectors of African economies—from agriculture to transport, to energy—has been widely researched and discussed. But its effect on marine fisheries, an important economic sector and significant source of food for large numbers of people in Africa, is less well understood.
First, what is known?
Climate change leads to rising sea temperatures, making fish stocks migrate toward colder waters away from equatorial latitudes, and contributing to shrinking fish sizes. It also influences the abundance, migratory patterns, and mortality rates of wild fish stocks.