1. Department of Fisheries and Aquatic Sciences, School of Natural Resource Management, University of Eldoret, P.O. Box 1125, Eldoret 30100, Kenya
2. Division of Environmental Biology, School of Environmental Studies, University of Eldoret, P.O. Box 1125, Eldoret 30100, Kenya
3. Department of Biology, Faculty of Science, Masinde Muliro University of Science and Technology, P.O. Box 190, Kakamega 50100, Kenya