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2012 (Vol. 1, Issue: 2)
Article Information:

Effects of Water Pollution on Phytoplankton Species Composition in Koluama Area, Niger Delta Area, Nigeria

J.F.N. Abowei, E.N. Ezekiel and U. Hansen
Corresponding Author:  J.F.N. Abowei 

Key words:  Effects, Koluama area, Niger Delta, Nigeria, phytoplankton species composition, water pollution,
Vol. 1 , (2): 134-139
Submitted Accepted Published
June 28, 2012 August 28, 2012 October 20, 2012
Abstract:

The effects of water pollution on phytoplankton species composition in Koluama Area of Niger Delta in Nigeria was studied to create awareness of the consequences of water pollution. Four (4) major families of phytoplankton were recorded; namely Baccillariophyceae, Dinophyceae, Chlorophyceae and Cyanophyceae. Baccillariophyceae were the dominant family and constituted 60% of the total number of phytoplankton. The Baccilariophyceae were represented by 67 species with numerical contribution ranging from 0.21% (Thalassiothrix nitzschoides) to 1.73% (Amphora ovalis). Cyanophyceae contributed 26% of the total number of phytoplankton count. Twenty-five (25) species were represented in this family and these include: Oscillatoria formosa (1.77%), Phormedium tenue (1.72%), Oscillatoria bonnemaisonii (1.41%) and Synchococcus aquatilis (1.38%). Other members of this family include: Oscillatoria terebriformis (1.35%), Merismopedia elegans (1.22%) and Phormedium brevis (1.21%). Chlorophyceae, which contributed 10%, of the total number of phytoplankton were represented by 12 species. The list of some Chlorophyceae species and their relative abundance were Pleudorina sp., (1.79%), Closterium lineatum (1.25%) and Phacolus (1.08%). In all the dominance pattern of the various families of phytoplankton was, Baccilariophyceae>Cyanophyceae>Chlorophyceae>Dinophyceae. The number of phytoplankton in the various stations ranged from 2800103 organisms per liter (SW/SD 4) of brackish water in to 3300103 organisms/L of water in SW/SD C1. The number of species of phytoplankton ranged between 85 (SW/SD 4 and SW/SD C 2) and 92 (SW/SD C1). This difference may result from the changing status of the environment over time. The sampling keys are: SW/SD 1 (Foropa) SW/SD2 (Ekeni) SW/SD3 (Ejetu) SW/SD4 (Kulama 1) SD/SW 5 (Kulama2) C1(Fish town) and C2 (Ikebiri fishing port 1 and 2). The co-efficient of co-relation (R) was 0.48 (R2 = 0.234), an indication that both variables were poorly correlated.
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  Cite this Reference:
J.F.N. Abowei, E.N. Ezekiel and U. Hansen, 2012. Effects of Water Pollution on Phytoplankton Species Composition in Koluama Area, Niger Delta Area, Nigeria.  International Journal of Fisheries and Aquatic Sciences, 1(2): 134-139.
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ISSN (Online):  2049-842X
ISSN (Print):   2049-8411
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