Assessment of Water Quality of Lotic and Lentic Ecosystems in Agbede Wetlands using a Multimetric Approach


  • Egerton Journal of Science & Technology Super Administrator Egerton University
  • Dirisu A. R. and M. I. Ezenwa


Principal component Analysis, Wetlands, Watershed, Water Quality Index, Environment, Nigeria.


In this study, an index method was adopted to grade the water quality of Agbede Wetlands for a period of 18 months (December, 2012 and May, 2014). On monthly basis, water samples were obtained from seven designated stations within the wetlands and analyzed for the classical parameters adopting standard methods. These parameters which included Water temperature, pH, electrical conductivity, turbidity , total dissolved solids, total suspended solids, dissolved oxygen, biological oxygen demand, chemical oxygen demand,  chloride, sulphate, phosphate, nitrate, total hydrocarbon content, sodium, potassium, magnesium, calcium, copper, cadmium, iron, lead, chromium, zinc,  nickel and manganese contributed invariably to water quality of Agbede Wetlands when keyed into Water Quality Index (WQI). The mean WQI values at stations 1, 2 and 3 were in all cases <30.00, for station 5 and 6, 30< WQI <50 while for stations 4 and 7, 50< WQI <100. Thus based on the parameters characterized in this study while adopting Federal Ministry of Environment standard for surface water, the water quality at stations 1,2,3,5 and 6 were said to be excellent while those of stations 4 and 7 were good. An attempt to x-ray the contribution of individual parameter towards the WQI values showed that the principal parameters were pH, turbidity, dissolved oxygen and heavy metals which include copper, lead, zinc, cadmium and nickel. There is need to ascertain the level of microbial agents, pesticides and herbicides concentrations in Agbede Wetland as the activities witnessed at the watershed are likely to influence them.

Author Biographies

Egerton Journal of Science & Technology Super Administrator, Egerton University

Egerton Journal of Science and Technology (Egerton J. Sci. & Technol. ISSN 2073-8277) publishes four types of papers as given below. Authors are expected to follow the provided guidelines as they prepare their manuscripts.

Dirisu A. R. and M. I. Ezenwa

Department of Animal and Environmental Biology, Faculty of Life Sciences,

University of Benin, Benin City, P.M.B 1154, Nigeria

Corresponding author:,


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How to Cite

Super Administrator, E. J. of S. & T., & Dirisu A. R. and M. I. Ezenwa. (2019). Assessment of Water Quality of Lotic and Lentic Ecosystems in Agbede Wetlands using a Multimetric Approach. Egerton Journal of Science and Technology, 16(1-139). Retrieved from



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