Ecology and seasonal variation of microalgal community in an oil refinery effluent holding pond: monitoring and assessment |
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Authors: | Joseph Valsamma Joseph Ammini |
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Affiliation: | (1) School of Environmental Studies, Cochin University of Science and Technology, Kochi, Kerala, India |
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Abstract: | The microalgal community as primary producers has to play a significant role in the biotic and abitoic interactions of anyaquatic ecosystem. Whenever a community is exposed to a pollutant, responses can occur because individuals acclimate topollutant caused changes and selection can occur favouring resistant genotypes within a population and selection among species can result in changes in community structure. The microalgal community of industrial effluent treatment systems arecontinuously exposed to pollutants and there is little data available on the structure and seasonal variation of microalgalcommunity of industrial effluent holding ponds, especially of acomplex effluent like that of refinery. The aim of the presentstudy was to investigate the annual variation in the ecology,biomass, productivity and community structure of the algalcommunity of a refinery effluent holding pond. The results ofthe study showed the pond to be a eutrophic system with a resistant microalgal community with distinct seasonal variation in species composition. |
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Keywords: | chlorophyll community respiration gross primary productivity microalgal community refinery effluent holding pond |
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