Studies on the physico-chemical characteristics and nutrients of a tropical rainforest river in southeast Nigeria
Journal Title: Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society - Year 2012, Vol 5, Issue 3
Abstract
Investigation of the variations in fifteen physico-chemical variables and three nutrients in three stations along Ikpa River, Nigeria were conducted between March 2009 and February 2010. All the parameters measured showed significantly different (p<0.05) spatial and temporal (monthly and seasonally) variability, except transparency and pH (p>0.05). Coefficient of variation (%CV) depicted that all the variables varied widely (1.86-68.16%) except total suspended solids and pH. Some parameters showed significant, insignificant and no relationships when the data was subjected to Pearson correlation coefficient analysis and depending on the period of predominance, they were classified as dry, wet, and non-seasonal climax parameters. Parameters such as TDS, TSS, DO, BOD5, TA, TH, FCO2, transparency and pH, fell within the range of World Health Organization (WHO) standard for potable drinking water, and adequate for sustaining living aquatic organisms. Of the nutrients, PO4-P and NO3-N were higher, while SO42- was lower than standards for drinking water. The high nutrient levels render the water quality poor, indicating need for protection from further nutrient load inputs.
Authors and Affiliations
Imaobong Ekpo, Louis Chude, Grace Onuoha
Keywords
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