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Abstract
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Article Information:
Preliminary Checklist of Phytoplankton and Periphyton in River Okhuo, Nigeria
Fidelia Okosisi Alika and Osondu Christopher Akoma
Corresponding Author: Osondu Christopher Akoma
Submitted: March 19, 2012
Accepted: June 15, 2012
Published: September 20, 2012 |
Abstract:
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This study presents the phytoplankton and periphyton diversity of River Okhuo, Edo State, Nigeria from
July-December, 2002. Phytoplankton samples were collected using a 55 μm mesh net while periphyton were
collected by scrapping wood, stones, leaves and branches and both were preserved separately in 4% formalin.
Camera Lucida drawings were taken and a total of 106 species, with more periphyton than phytoplankton were
identified using monographs and research publications. The phytoplankton assemblages comprised of
Bacillariophyta (43.94%) > Chlorophyta (42.42%) > Cyanophyta (6.06%) ≥ Euglenophyta (6.06%) > Rhodophyta
(1.49%) while for the periphyton, distribution of species were: Chlorophyta (57.83 %) > Bacillariophyta (25.30%) >
Cyanobacteria (10.84%) > Euglenophyta (4.82%) > Rhodophyta (1.21%). Chlorophyta was dominated by desmids,
which were largely represented by species of Cosmarium and Closterium. The Bacillariophyta was represented by
two (2) orders: Centrales and Pennales. Cyanobacteria was grouped into five families: Chroococcaceae,
Nostocaceae, Rivulariaceae, Scytonemaceae and Oscillatoriaceae. Euglena (5) and Phacus (2) of Euglenophyta were
recorded while Batrachospermum vagum was the only representative of the Rhodophyta.
Key words: Nigeria, periphyton, phytoplankton, river okhuo, species, ,
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Cite this Reference:
Fidelia Okosisi Alika and Osondu Christopher Akoma, . Preliminary Checklist of Phytoplankton and Periphyton in River Okhuo, Nigeria. Current Research Journal of Biological Sciences, (5): 538-543.
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ISSN (Online): 2041-0778
ISSN (Print): 2041-076X |
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