Impact of floating platforms on the limnological aspects of hydropower plant reservoirs
Floating platforms at the hydropower plant reservoirs are attractive sites for aquaculture, fishing and other recreational activities. However, the unregulated construction of these platforms may negatively affect the fauna, flora and water quality of reservoirs. Thus, this study aimed to evaluate t...
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GJESM Publisher
2020-10-01
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| Series: | Global Journal of Environmental Science and Management |
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| Online Access: | https://www.gjesm.net/article_39874_6b0510290817f41e3f8cf0f58ec138c9.pdf |
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| author | L.S. Vanzela D.C. Pereira L.D.S.C. Lima K.U. Khan C.F.M. Mansano |
| author_facet | L.S. Vanzela D.C. Pereira L.D.S.C. Lima K.U. Khan C.F.M. Mansano |
| author_sort | L.S. Vanzela |
| collection | DOAJ |
| description | Floating platforms at the hydropower plant reservoirs are attractive sites for aquaculture, fishing and other recreational activities. However, the unregulated construction of these platforms may negatively affect the fauna, flora and water quality of reservoirs. Thus, this study aimed to evaluate the impact of floating platforms on the limnological aspects of Nova Ponte hydropower plant reservoirs at the Center-West of Minas Gerais State of Brazil. The obtained data were analyzed using the correlation and regression analysis. Dissolved oxygen, biochemical oxygen demand, chemical oxygen demand, total coliforms and thermotolerant bacteria were plotted against the density of floating platforms. The density of platforms significantly (p-value > 0.05) impacted the analyzed limnological aspects of reservoirs. Based on the present results, 4 floating platforms/km<sup>2 </sup>(1 platform per 25 hectares) of surface water should be the maximum density in order to avoid the deterioration of water quality of reservoirs. With 4 platforms/km<sup>2</sup>, the expected values in fishing period were estimated to be 5.4 mg/L for biochemical oxygen demand, 375 most probable number per 100 mL of sample for thermotolerant bacteria and 6.1 mg/L for chemical oxygen demand. In fishing-ban period, the expected values were estimated to be 4.1 mg/L for dissolved oxygen, 3.4 mg/L for biochemical oxygen demand, 379 most probable number per 100 mL of sample for thermotolerant bacteria and 4.2 mg/L for chemical oxygen demand. This finding provides important base-line information which could help policy makers to take effective measurements for the appropriate management of surface water resources. |
| format | Article |
| id | doaj-art-b3b84e20596c4115a1ae6a14e84c1e32 |
| institution | Kabale University |
| issn | 2383-3572 2383-3866 |
| language | English |
| publishDate | 2020-10-01 |
| publisher | GJESM Publisher |
| record_format | Article |
| series | Global Journal of Environmental Science and Management |
| spelling | doaj-art-b3b84e20596c4115a1ae6a14e84c1e322025-02-02T11:59:02ZengGJESM PublisherGlobal Journal of Environmental Science and Management2383-35722383-38662020-10-016445746610.22034/gjesm.2020.04.0339874Impact of floating platforms on the limnological aspects of hydropower plant reservoirsL.S. Vanzela0D.C. Pereira1L.D.S.C. Lima2K.U. Khan3C.F.M. Mansano4Department of Stricto Sensu Graduate Program in Environmental Sciences, Brazil University, Campus Fernandópolis-Est. Projetada F-1, s/n - Fazenda Santa Rita, 15600-000, Fernandópolis, SP, BrazilDepartment of Stricto Sensu Graduate Program in Environmental Sciences, Brazil University, Campus Fernandópolis-Est. Projetada F-1, s/n - Fazenda Santa Rita, 15600-000, Fernandópolis, SP, BrazilDepartment of Stricto Sensu Graduate Program in Environmental Sciences, Brazil University, Campus Fernandópolis-Est. Projetada F-1, s/n - Fazenda Santa Rita, 15600-000, Fernandópolis, SP, Brazil2Aquaculture Center, São Paulo State University, Via de Acesso Prof. Paulo Donato Castellane, s/n - Jaboticabal - 14884-900, SP, BrazilDepartment of Stricto Sensu Graduate Program in Environmental Sciences, Brazil University, Campus Fernandópolis-Est. Projetada F-1, s/n - Fazenda Santa Rita, 15600-000, Fernandópolis, SP, BrazilFloating platforms at the hydropower plant reservoirs are attractive sites for aquaculture, fishing and other recreational activities. However, the unregulated construction of these platforms may negatively affect the fauna, flora and water quality of reservoirs. Thus, this study aimed to evaluate the impact of floating platforms on the limnological aspects of Nova Ponte hydropower plant reservoirs at the Center-West of Minas Gerais State of Brazil. The obtained data were analyzed using the correlation and regression analysis. Dissolved oxygen, biochemical oxygen demand, chemical oxygen demand, total coliforms and thermotolerant bacteria were plotted against the density of floating platforms. The density of platforms significantly (p-value > 0.05) impacted the analyzed limnological aspects of reservoirs. Based on the present results, 4 floating platforms/km<sup>2 </sup>(1 platform per 25 hectares) of surface water should be the maximum density in order to avoid the deterioration of water quality of reservoirs. With 4 platforms/km<sup>2</sup>, the expected values in fishing period were estimated to be 5.4 mg/L for biochemical oxygen demand, 375 most probable number per 100 mL of sample for thermotolerant bacteria and 6.1 mg/L for chemical oxygen demand. In fishing-ban period, the expected values were estimated to be 4.1 mg/L for dissolved oxygen, 3.4 mg/L for biochemical oxygen demand, 379 most probable number per 100 mL of sample for thermotolerant bacteria and 4.2 mg/L for chemical oxygen demand. This finding provides important base-line information which could help policy makers to take effective measurements for the appropriate management of surface water resources.https://www.gjesm.net/article_39874_6b0510290817f41e3f8cf0f58ec138c9.pdfaquaculturediffused pollutionrecreational activitiessustainable environmentwaterborne diseaseswater management |
| spellingShingle | L.S. Vanzela D.C. Pereira L.D.S.C. Lima K.U. Khan C.F.M. Mansano Impact of floating platforms on the limnological aspects of hydropower plant reservoirs Global Journal of Environmental Science and Management aquaculture diffused pollution recreational activities sustainable environment waterborne diseases water management |
| title | Impact of floating platforms on the limnological aspects of hydropower plant reservoirs |
| title_full | Impact of floating platforms on the limnological aspects of hydropower plant reservoirs |
| title_fullStr | Impact of floating platforms on the limnological aspects of hydropower plant reservoirs |
| title_full_unstemmed | Impact of floating platforms on the limnological aspects of hydropower plant reservoirs |
| title_short | Impact of floating platforms on the limnological aspects of hydropower plant reservoirs |
| title_sort | impact of floating platforms on the limnological aspects of hydropower plant reservoirs |
| topic | aquaculture diffused pollution recreational activities sustainable environment waterborne diseases water management |
| url | https://www.gjesm.net/article_39874_6b0510290817f41e3f8cf0f58ec138c9.pdf |
| work_keys_str_mv | AT lsvanzela impactoffloatingplatformsonthelimnologicalaspectsofhydropowerplantreservoirs AT dcpereira impactoffloatingplatformsonthelimnologicalaspectsofhydropowerplantreservoirs AT ldsclima impactoffloatingplatformsonthelimnologicalaspectsofhydropowerplantreservoirs AT kukhan impactoffloatingplatformsonthelimnologicalaspectsofhydropowerplantreservoirs AT cfmmansano impactoffloatingplatformsonthelimnologicalaspectsofhydropowerplantreservoirs |