LIMNOLOGICAL STUDIES OF KARIDNA RESERVIOR, IN IGABI LOCAL GOVERNMENT AREA OF KADUNA STATE, NIGERIA
LIMNOLOGICAL STUDIES OF KARIDNA RESERVIOR, IN IGABI LOCAL GOVERNMENT AREA OF KADUNA STATE, NIGERIA
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Date
2015-10
Authors
ABDULAZEEZ, Mohammed Tariq
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Abstract
Physico-chemical parameters and zooplankton species distribution in Karidna Reservoir were investigated for a period of one year between October 2013 and September 2014 with the aim of establishingthe physical, chemical and biological (Zooplankton) parameters of Karidna Reservoir. Five sampling stations were chosen; the physicochemical and biological parameters were determined using standard methods, procedures and instruments. The results obtained for the physico-chemical parameters indicated that pH (6.19-8.63),Temperature (25.94-31.54oC), Electrical Conductivity (38.20-64.20μS/cm), Total Dissolved Solids (19.20-37.20 mg/l), Transparency (19.40-40.10 cm) Dissolved Oxygen (2.40-6.81mg/L), Hardness ( 3.48-174.4mg/L) Calcium (2.14-3.86mg/L),Biological Oxygen Demand (2.91-40.85mg/L), Chloride (2.28-3.58mg/L) Phosphate-phosphorus (0.04-0.24mg/L), Nitrate- Nitrogen (0.14-0.30mg/L), Sulphate (0.06-0.21mg/L) Alkalinity (2.51-5.04mg/l).Po4-, NO3-,SO4-,EC,TDS,Transparency,D.O and B.O.D were highly significant at (P<0.01) between the seasons while non-significant differences are observed in Cl, Hardness, Alkalinity, Temperature and pH. It was only Calcium that was significant at P<0.05. The Zooplankton were more prevalent during the rainy season than the dry season and there were variations in their composition and as well as in their abundance along the reservoir continuum..Only three groups of Zooplankton were found: Rotifera with five genera, Cladocera with seven genera and Copepods with four genera. Rotifera dominated numerically (36.99%), followed by Cladocera (35.53%) and Copepods (27.48%).The distribution of zooplankton between the stations shows that station1 have more prevalent of zooplankton than other stations due to its direct contact with humans and other
anthropogenic activities.The zooplankton community composition of the reservoir also showed the reservoir to be productive and could support a diverse species of fishes
Description
A THESIS SUBMITTED TO THE SCHOOL OF POSTGRADUATE STUDIES, AHMADU BELLO UNIVERSITY, ZARIAIN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE AWARD OF MASTER OF SCIENCE DEGREE IN ZOOLOGY DEPARTMENT OF BIOLOGICAL SCIENCES FACULTY OF SCIENCE AHMADU BELLO UNIVERSITY, ZARIA NIGERIA
Keywords
LIMNOLOGICAL STUDIES,, KARIDNA RESERVIOR,, IGABI LOCAL GOVERNMENT AREA,, KADUNA STATE,, NIGERIA