The newly built Ribb Reservoir fisheries, Tana Sub?basin, Ethiopia: New fishery establishment, diversity, production, challenges and management

In the future, agriculture alone may not produce food needed to feed increasing world population. Hence, it can be augmented by developing irrigation and water resources, mainly fisheries resources. Ethiopia, especially in Tana Sub-basin, expanded practices building dams weirs along tributaries of Lake did consider nor development management. The aim this research was, therefore, promote integrate them into systems Ribb Reservoir Ethiopia. During sampling time (from September 2020 August 2021), primary secondary data collection discussions with experts fishers were conducted. Although dam prevented upstream spawning migration Labeobarbus species, reservoir created a new development. Water quality parameters, such as temperature (23.82 ± 1.38°C), pH (6.36 0.64) dissolved oxygen (8.84 3.54 mgl-1), within acceptable range for fish. Of 11 identified fish L. nedgia surkis most least common respectively. Riverine cut spawner species sources However, Oreochromis niloticus (Nile tilapia) was restocked 2017 increase livelihoods fishers. Fulton condition factor, K values (1.63 0.25), intermedius (1.70 0.27), C. gariepinus (0.61 0.13) O. (1.65 0.29), their ‘b’ <3. newly established fishery is source income fishers, its annual production has been shown from 148.5 1034.1 tons/year, indicating are adapting reservoir. faced many challenges, illegal fishing, fisher engagement, fishing gears. Limiting number restrictions on gears seasonality some mitigations.