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International Journal of Fisheries and Aquatic Studies
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(ICV-Poland) Impact Value: 76.37, Impact Factor: RJIF 5.69
E-ISSN: 2347-5129, P-ISSN: 2394-0506

International Journal of Fisheries and Aquatic Studies

2018, Vol. 6, Issue 2, Part A

Phytoplanktonic species diversity in relation to Physico-Chemical parameters of Ajiwa Reservoir, Katsina State Nigeria


Author(s): Abdulkarim B and Ibrahim A

Abstract: Phytoplankton composition governed the water quality parameters. The relationship that water quality share with Phytoplankton is reciprocal as the later strongly influence water quality through carbon dioxide uptake and oxygen production. The Ajiwa reservoir serves two main purposes which are irrigation and water supply. Phytoplankton samples were collected with one litter transparent plastic bottle by dipping the container bottle, sliding over the upper surface of water with its mouth against the water current to permit undisturbed passage of the water into the bottle. Counting of the individual Phytoplankton was done by ‘Lackeys’ dropping method. The Physico-chemical parameters ware determined using the Standard by method as described APHA (1999). The Phytoplankton composition identified in the three stations belongs to four groups, which include Chlorophyta, Bacillariophyta, Cyanophyta, and Dinophyta (Pyrrophyta). Phytoplankton percentage composition indicated, Chlorophyta have the highest percentage composition with 57.66% of the total population of identified. Bacillariophyta have the second highest percentage of 25.70%. The Cyanophyta, have the third with percentage composition of 14.73%. Dinophyta has the least percentage which represents 1.91% of the Phytoplankton composition. The result revealed no significant differences between the three stations in population composition and diversity of Chlorophyta (P ≥ 0.05). There was a significant difference in the population count between months and seasons of Bacillariophyta at P≤ 0.05. Green algae has a higher abundance over other kinds of algae and has a positive correlation (r>0.59) with dissolved oxygen which revealed the productivity of the reservoir especially during wet season.

Pages: 30-33  |  482 Views  39 Downloads

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How to cite this article:
Abdulkarim B, Ibrahim A. Phytoplanktonic species diversity in relation to Physico-Chemical parameters of Ajiwa Reservoir, Katsina State Nigeria. Int J Fish Aquat Stud 2018;6(2):30-33.
International Journal of Fisheries and Aquatic Studies