Hippo waste causes fish kills in Africa's Mara River

(Cary Institute of Ecosystem Studies) Ecologists have long known that agricultural and sewage pollution can cause low oxygen conditions and fish kills in rivers. A study published today in Nature Communications reports that hippo waste can have a similar effect in Africa's Mara River, which passes through the world renowned Maasai Mara National Reserve of Kenya, home to more than 4,000 hippos.
Source: EurekAlert! - Biology - Category: Biology Source Type: news