International Journal of Ecology and Environmental Sciences

International Journal of Ecology and Environmental Sciences


International Journal of Ecology and Environmental Sciences
International Journal of Ecology and Environmental Sciences
2021, Vol. 3, Issue 3
Application of multimetric index on water quality assessment of Qua Iboe River Estuary, Akwa Ibom State, Nigeria

Udeme E Jonah, Imekan I Akpan

The present study was to assess the deteriorating level of water quality status of Qua Iboe River Estuary; Southern Nigeria between November, 2018 and August, 2019. Water Quality Index and Family Biotic Index approach were used to check the water in five sampling stations. Ten parameters were evaluated and compared with standard water quality of World Health Organization. The some physico-chemical parameters recorded exceeded the acceptable limits excluding water temperature, pH, NO3- and S042-. LSD test indicated significant differences in some parameters between the stations. A total of 1,324 species, comprising of 3 phyla and 19 families of macro invertebrates were identified. Arthropod was the highest recorded phylum accounted for 55.89 percentage composition, Mollusc (38.59%) and Annelid (5.52%). Station 3 was recorded the highest number species (331, 25%), Station 2 (316, 23.87%), station 1 (234, 17.67), station 4 (222, 16.77%), station 5 (221, 16.69%). The water quality index (WQI) values obtained across the stations were >100 based on weighted arithmetic method, range between 351.83 and 491.37.The family biotic index values were between the ranges of 5.85 and 6.73 (station 1: 6.73, > 2: 6.71, >4: 6.59, >3: 6.38, >5: 5.85).The obtained values in calculated WQI, FBI and the occurrence of pollution indicators species in this study proved that the water is heavily deteriorating, not suitable for domestic usages and for survival of certain aquatic biota, owing to severe anthropogenic activities surrounding the water body and on the catchments areas. This calls for urgent attention by relevant authorities to check and control the possible sources of pollutants into the water body.
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How to cite this article:
Udeme E Jonah, Imekan I Akpan. Application of multimetric index on water quality assessment of Qua Iboe River Estuary, Akwa Ibom State, Nigeria. International Journal of Ecology and Environmental Sciences, Volume 3, Issue 3, 2021, Pages 126-134
International Journal of Ecology and Environmental Sciences International Journal of Ecology and Environmental Sciences