STUDIES ON THE PHYSICO-CHEMICAL PARAMETERS AND PLANKTON COMPOSITION OF AJIWA RESERVOIR KATSINA STATE, NIGERIA

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Date
2014-07
Authors
IBRAHIM, Ahmed
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Abstract
The Studies on the physico-chemical parameters and plankton composition of Ajiwa reservoir, Katsina State, Nigeria was carried out from May 2012 to April 2013; with the aim to establish physical, chemical, and biological parameters (Plankton) of Ajiwa reservoir. Three sampling stations were chosen; the physico-chemical and biological parameter were determined using standard methods, procedures, and instruments. The result revealed that; Water temperature (23.8 ± 0.8оC), pH (6.8 ± 0.1), Turbidity (99.3 ± 3.6NTU), Conductivity (129.9 ± 4.1μЅ/cm), Total Dissolved Solids (17.8 ± 0.3mg/L), Nitrate-nitrogen (6.01 ± 0.3mg/L), Water hardness (88.8 ±1.4mg/LCaCO3), Dissolved Oxygen (6.6 ± 0.3mg/L), Biochemical Oxygen Demand (3.2 ± 0.4mg/L), Phosphatephosphorus (6.4 ± 0.2mg/L) and Water depth (5.4±0.3m) varied with months and seasons. Analysis of variance indicated significant difference between seasons (P < 0.05); but no significant difference in zooplankton and phytoplankton distribution and abundance between the three stations (P>0.05). The result indicated phytoplankton percentage composition as; Chlorophyta (57.66%), Bacillariophyta (25.70%), Cyanophyta (14.73%), and Dinophyta (1.91%) while Zooplankton percentage composition were Rotifera (30.55%), Copepoda (29.33%), Protozoa (22.27%), and Cladocera (17.85%); the morpho-edaphic index indicate low fish potential yield in the reservoir. Water quality of the reservoir is influenced by anthropogenic activities such as runoffs of inorganic fertilizers and pesticides; the reservoir water is suitable for irrigational and domestic purposes in terms of most of the physico-chemical and biological parameters analyzed. Hence, there is need for an effective anthropogenic inputs control programme in the reservoir.
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i STUDIES ON THE PHYSICO-CHEMICAL PARAMETERS AND PLANKTON COMPOSITION OF AJIWA RESERVOIR KATSINA STATE, NIGERIA BY Ahmed IBRAHIM BSc. (Ed.), (ABU) 2007 M.Sc./SCIE/09023/2010-2011 A THESIS SUBMITTED TO THE SCHOOL OF POSTGRADUATE STUDIES, AHMADU BELLO UNIVERSITY, ZARIA IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR THE AWARD OF A MASTER DEGREE IN EDUCATIONAL BIOLOGY. DEPARTMENT OF BIOLOGICAL SCIENCES, FACULTY OF SCIENCE AHMADU BELLO UNIVERSITY, ZARIA NIGERIA July, 2014
Keywords
PHYSICO-CHEMICAL,, PARAMETERS,, PLANKTON,, COMPOSITION,, AJIWA RESERVOIR,, KATSINA STATE, NIGERIA
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