RESEARCH PAPER
COMPARATIVE PLANKTON SURVEY AND PHYSICOCHEMICAL ASSESSMENT OF TWO PONDS IN KANO METROPOLIS, NIGERIA
 
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1
Department of Science Laboratory Technology
2
Federal College of Education Okene
Publication date: 2019-04-24
 
Eurasian J Anal Chem 2018;13(3):emEJAC03124
 
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ABSTRACT
Monthly charges in plankton periodicity levels, temperature, pH, turbidity and heavy metals were studied in two ponds in Kano metropolis for a period of 12 months. Physico-chemical parameter studied has shown that temperature, pH and turbidity ranged between 14.2-33.5˚C, 6.5-8.6 and 2.3-143 NTU respectively. Dissolved oxygen, biochemical oxygen demand, nitrate and phosphate concentration were within the ranges of 3.3-7.9 mg/1, 1.1-6.4 mg/1, 1.26-12.2 and 1.11-9.60 mg/1 respectively. Plankton periodicity in the ponds shown two phases separated by shift in nutrient concentration and temperature regimes. Significant difference occurred between the wet and dry seasons values of temperature, pH, turbidity, nitrate, phosphate, phytoplankton and zooplankton (p<0.01). However, no significant different was found between the seasons in terms of BOD5 at p>0.05. Phytoplankton and zooplankton densities were found to correlate positively with pH, BOD5 nitrate, phosphate and the heavy metals (p<0.01). Ten (10) phytoplankton species were identified in the ponds dominated by Green algae (site A 50.00% and site B 71.43%)and (7.14%) each for blue green algae, diatom and flagellate, while Eight zooplankton species were identified dominated by rotifera 3 (29.47%) followed by protozoa 2 (18.03%), copepoda 1 (18.18%), and flagellates 1 (15.58%). While 22.35% was recorded for nematoda. Double maxima occurred in terms of the total monthly density of phytoplankton recorded from site B which were 8,653 and 7,126 orgs/l in April and February respectively.
eISSN:1306-3057