The Central Rift Valley (CRV) in Ethiopia (between 38°00’-39°30’ E and 7°00’-8°30’ N) covers about one million ha and is part of the Great African Rift Valley. The CRV is in the centre of the Ethiopian Rift, 150 km southwest of the capital Addis Ababa, and encompasses three large lakes, i.e. Lake Ziway, Abyata and Langano, and three major rivers, i.e. Bulbula, Meki and Katar. Lake Shala, which borders the CRV, forms together with Lake Abyata the Abyata-Shala Lakes National Park.