The Niger and its tributaries are extensively fished, and the Mopti region, where the Niger and Bani rivers flood the delta during the rainy season, accounts for 90% of the catch. The Senegal River accounts for most of the rest. Fishermen use nets, harpoons, and snares. About 90% of the fishing catch is dried or smoked for domestic consumption and export; Nile tilapia and North African catfish are the main species. River fishing was severely affected by the 1968–74 and 1982–85 droughts. The total catch was 109,870 tons in 2000.