Study to detect impacts of pollution on the distribution of Zooplankton in the Northern tropical ponds in Sri Lanka

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dc.contributor.author Patrick, A. E. S.
dc.contributor.author Kadotgasan, J. M.
dc.contributor.author Naveendrakumar, G.
dc.date.accessioned 2021-11-12T09:06:19Z
dc.date.available 2021-11-12T09:06:19Z
dc.date.issued 2012
dc.identifier.citation Patrick, A. E. S. Kadotgasan,J. M. and Naveendrakumar,G.(2012). Study to detect impacts of pollution on the distribution of Zooplankton in the Northern tropical ponds in Sri Lanka.Archives of Applied sciences research,4 (6):2552-2556. en_US
dc.identifier.issn 2383-2215
dc.identifier.uri http://drw.jfn.ac.lk/handle/123456789/149
dc.description.abstract Although the Limnological survey are well documented in Sri Lanka. However, not much work has been done in Northern Province after the early nineteen eighties. Zooplankton community distribution can be taken as an indicator of the well-being of the water bodies. The Ariyakulam pond and Vavuniya tank were chosen to investigate the distribution of major Zooplankton; Rotifera, Cladocera and Copepoda along with the pollution impacts during January-June, 2012. Oil and Grease pollutant is common in Vavuniya tank, not in Ariyakulam, where Biological Oxygen Demand (BOD5) was determined in various regions of the pond to distinguish the polluted and non-polluted regions in both water bodies. Random Plankton sampling was done in the littoral zones, as it was densely packed with vegetation, Sieve-set (50μm) was used to filter the water sample, preserved with 4% formalin and taken to the laboratory for qualitative and quantitative analysis using low-power light microscope. Sedgewick-Rafter cell was used to estimate the zooplankton abundance as individuals/m3.Comparing the distribution of zooplankton community in both non-polluted regions, Rotifers were higher, followed by Cladocerans and Copepods. Relative abundance of Rotifers were significantly higher (p<0.05) in non-polluted region (BOD5=1.095-1.800mgL-1) than polluted region (BOD5=3.500-4.012mgL-1) within Vavuniya tank, justifies the less tolerability to pollution or vulnerability to predation by Copepods. When comparing the Rotifer distribution within Vavuniya tank, there was a significantly higher (p<0.05) abundant was observed in non-polluted (BOD5=1.100-1.800mgL-1) region than the polluted region (BOD5=3.500-4.200mgL-1). Copepods were significantly (p<0.05) higher in the polluted region of Vavuniya tank than the polluted region of Ariyakulam pond (BOD5=2.000-2.500mgL-1) indicating the high tolerability to pollution. Cladocerans also showed the second largest abundance in the non-polluted regions compare to the polluted regions in the water bodies, indicating the impact of pollution. en_US
dc.language.iso en en_US
dc.subject Zooplankton en_US
dc.subject Pollution indicators en_US
dc.subject Tropical pond en_US
dc.title Study to detect impacts of pollution on the distribution of Zooplankton in the Northern tropical ponds in Sri Lanka en_US
dc.type Journal Article en_US
dc.identifier.journal Journal of Applied sciences Research en_US


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