1. Department of Agricultural Engineering, Faculty of Technology, Wollega University Shambu Campus, Shambu, Ethiopia
2. Department of Natural Resources Management, Faculty of Resources Management and Economics, Wollega University Shambu Campus, Shambu, Ethiopia
3. Department of Fisheries and Aquatic Sciences, Faculty of Agriculture, Wollega University Shambu Campus, Shambu, Ethiopia
4. Department of Geography and Environmental Studies, Raya University, Maichew, Ethiopia
5. Department of Natural Resource Management, College of Agriculture and Veterinary Medicine, Jimma University, Jimma, Ethiopia