Slow Turnover: Warming trend affects African ecosystem

Over the past 90 years, rising water temperatures in Lake Tanganyika have dramatically reduced populations of the aquatic microorganisms at the base of the lake’s food chain, a new analysis shows.

More than 650 kilometers long and up to 50 km wide, Lake Tanganyika is by volume the world’s second-largest body of fresh water, surpassed only by Russia’s Lake Baikal.