Journal of Aquaculture Research & Development

Modeling macronutrients loadings in river Sosiani

4^th International Conference on Fisheries & Aquaculture

November 28-30, 2016 San Antonio, USA

Ojwang Kudenyo Chibole

University of Eldoret, Kenya

Posters & Accepted Abstracts: J Aquac Res Development

Abstract:

Excessive macronutrients inputs into surface water bodies induce biological, chemical and physical changes in aquatic flora and fauna communities often leading to oxygen depletion and cultural eutrophication. River Sosianiâ??s catchment, in western Kenya, has witnessed rapid population growth rate resulting into rapid urbanization and intensification of agriculture in the catchment. To assess the extent of macronutrients flux in the river, the MIKE 11 modeling system (DHI) was employed. The riverâ??s catchment was delineated according to land-use practice into forested (Fz), agricultural (Az) and urban (Uz). Rainfall runoff processes were modeled using NAM (DHI) and the hydrodynamic model was built using the MIKE 11 HD module. Macronutrients modeling was limited to the N and P. Model calibration was done on the basis of available measured N and P data at Fzâ??Az; Azâ??Uz boundaries and at the catchment outlet. Simulated data versus observed data show model efficiency of 0.69. The Uz contributes 80% of P flux in the catchment.

Biography :

Email: kudenyochibole44@gmail.com