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Water Quality of a Perturbed Tropical Forest Aquatic Environment in Nigeria

Isibor, Patrick Omoregie and Oluowo, Elohor Freeman and Izegaegbe, Joshua Idowu (2017) Water Quality of a Perturbed Tropical Forest Aquatic Environment in Nigeria. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCES, 1 (1). pp. 54-68. ISSN ISSN xxxx-xxxx (Paper) ISSN 2519-5549 (Online)

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Purpose: Egbokodo River was surveyed from November, 2014 to February, 2016 (covering wet and dry seasons); on monthly basis. 10 samples of surface water were collected at 10 sub-stations randomly around each station; labelled Stations 1, 2, 3, 4, and 5 using 250 litres sampling bottles. Methodology: Two-way ANOVA was used to test for significant differences across the months and across the stations. High conductivity in the dry season was coeval with high salinity; indicating a substantial contribution of the dissolved salts to the conductivity of the river. The outstandingly high levels of total dissolved solids and turbidity at Station 3 can be attributed to the intense dredging activities carried out at this location. The high values of BOD observed at Station 2 was accompanied by low dissolved oxygen (DO). This can be attributed to disposal of organic wastes at this section of the river. The DO at Station 3 was significantly higher than other stations throughout the study period (P < 0.05). This can be attributed to the surface turbulence by dredging agitation and high standing aquatic macrophytes. The levels of the essential primary productivity nutrients such as nitrate, phosphate and sulphate in the river indicate that the river is oligotrophic. Results show that anthropogenic activities around the river are of higher impacts on the ecological equilibrium than neighbouring rivers. The river is supports aquatic life, it is also suitable for agriculture and domestic use; though not without proper water treatment before drinking.

Item Type: Article
Uncontrolled Keywords: Allocthonous, authoctonous, anthropogenic activities, pollution, seasonal variation, physico-chemical properties
Subjects: Q Science > QH Natural history
Q Science > QH Natural history > QH301 Biology
S Agriculture > SH Aquaculture. Fisheries. Angling
Divisions: Faculty of Medicine, Health and Life Sciences > School of Biological Sciences
Depositing User: Mrs Patricia Nwokealisi
Date Deposited: 28 Nov 2019 12:23
Last Modified: 28 Nov 2019 12:23

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