Influence of physico-chemical parameters on the distribution of freshwater snails in River Uke, Nassarawa State, Nigeria
The Physio-Chemical parameters of River Uke, Keffi, Nasarawa State, were studied between the months of February to August 2011. Nine water parameters were analyzed and Melanoides tuberculata was also identified using identification keys by Brown and Kristensen (1993). These include temperature, pH, alkalinity, turbidity, conductivity, nitrates, phosphates, total dissolved substances and dissolved oxygen using the methods described by Boyd (1979). The temperature ranged between 25~'C - 27.5~'C (mean = ~c 26.31~'C), while pH ranges between 6.3 and 7.5(mean = ~c 6.89). The highest value obtained for alkalinity was I5.4mg L-1, while the lowest was 4mgL-1(mean = ~c 10.2mg L-1). Dissolved oxygen concentration value was between 4.lmgL-1, and 8.6mgL-1(mean = ~c 6.35mgL-1), the turbidity in dry season range between 50 to 60 cm and in rainy season, it ranged between 4 to 7 cm. The total dissolved substances range between 40ppm and 200ppm. The conductivity value ranged between 80~ks/cm and 400~ks/cm. An extreme high concentration of phosphate was recorded and ranged between 0.9mL-1 and 4.2mg L-1, which was due to water and land use practice. The nitrate concentration was negligibly low with concentration between 0.00% and 0.15%. This concentration was however adequate and support fish population and freshwater snails such as Melanoides tuberculata.
| Main Authors: | , , |
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| Format: | conference_item biblioteca |
| Language: | English |
| Published: |
FISON
2012
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| Subjects: | Biology, Limnology, Pollution, Nigeria, Nassarawa State, Uke River, Freshwater snails, freshwater environment, Physicochemical properties, Rivers, Water quality, Water properties, Aquatic environment, Temperature, Dissolved oxygen, Alkalinity, Turbidity, Nitrates, Phosphates, Geographical distribution, |
| Online Access: | http://hdl.handle.net/1834/38903 |
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