Diversity of Phytoplankton in Iragbo Part of Yewa Lagoon, Southwest, Nigeria
American Journal of BioScience
Volume 4, Issue 4, July 2016, Pages: 41-48
Received: Mar. 23, 2016; Accepted: Apr. 5, 2016; Published: Aug. 21, 2016
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Kokoette Sunday Effiong, Department of Marine Sciences, Faculty of Sciences, University of Lagos, Akoka, Lagos, Nigeria
Aniefiok Ini Inyang, Department of Marine Biology, Faculty of Natural and Applied Sciences, Akwa Ibom State University, Ikot Akpaden, Nigeria
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A study of the diversity of phytoplankton in Iragbo part of Yewa Lagoon Lagos was conducted for six months, (December, 2012- May, 2013). The surface water transparency was (≥48.5) and showed direct relationship with phytoplankton abundance. A total of 4875 individuals of 77 phytoplankton species belonging to 6 divisions were identified. Phytoplankton biomass was high in the dry months than wet months. Phytoplankton chlorophyll-a value (0.004) was highest in January. The Centrales diatoms dominated the phytoplankton community. A total of 1475 individuals (30.8%) represents Bacillariophyta, while 635 (13.3%), 15 (0.3%), 2525 (52.8%), 115 (2.4%) and 20(0.4%) represents Chlorophyta, Chrysophyta, Cyanophyta, Euglenophyta, and Pyrrophyta respectively. Cyanophyta were the most abundant (52.8%) while Bacillariophyta had the highest species composition of 28 making up (36.4%) of the total species. Diversity was higher in dry months (≥3.42) than wet months (≤2.99). Chlorophyll-a abundance showed positive correlation with Chemical Oxygen Demand (COD), Dissolved Oxygen (DO) and Iron (Fe).
Chlorophyll-a, Diversity, Phytoplankton, Species-Evenness
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Kokoette Sunday Effiong, Aniefiok Ini Inyang, Diversity of Phytoplankton in Iragbo Part of Yewa Lagoon, Southwest, Nigeria, American Journal of BioScience. Vol. 4, No. 4, 2016, pp. 41-48. doi: 10.11648/j.ajbio.20160404.11
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