Lake Malawi/Niassa/Nyasa
Lake Malawi/Niassa/Nyasa is the third deepest freshwater lake in the world. The basin is densely populated and has a high prevalence of water borne diseases. The lakes is home to 800 to 1000 fish species, making it the most fish species-rich lank in the world. The lake employs 56,000 fishers who harvest more than 100,000 tons of fish per year. Overall, the fishery supports the livelihoods of more than 1.6 million people. Major threats to the lake include overuse, invasive species, habitat degradation and deforestation, pollution and climate change.