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Environmental management through sluice gated bed-dam: a revived strategy for the control of Anopheles fluviatilis breeding in streams

BACKGROUND & OBJECTIVES: Integrated vector management (IVM) emphasizes sustainable eco-friendly methods and minimal use of chemicals. In this context, the present study highlights the environmental control of breeding of Anopheles fluviatilis, the primary malaria vector, through water management...

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Autores principales: Sahu, S.S., Gunasekaran, K., Jambulingam, P.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4216505/
https://www.ncbi.nlm.nih.gov/pubmed/25297364
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author Sahu, S.S.
Gunasekaran, K.
Jambulingam, P.
author_facet Sahu, S.S.
Gunasekaran, K.
Jambulingam, P.
author_sort Sahu, S.S.
collection PubMed
description BACKGROUND & OBJECTIVES: Integrated vector management (IVM) emphasizes sustainable eco-friendly methods and minimal use of chemicals. In this context, the present study highlights the environmental control of breeding of Anopheles fluviatilis, the primary malaria vector, through water management in a natural stream in Koraput district, Odisha, India. METHODS: The District Rural Development Agency (DRDA), Koraput, constructed two bed-dams across streams, one in Barigaon and the other in Pipalapodar village. The bed-dam in the former village was fitted with two sluice gates whereas the bed dam constructed in the latter village was without the sluice gate. The sluice gates were opened once in a week on a fixed day to flush out the water from the dam. Anopheles immatures were sampled systematically in the streams using a dipper for density measurement and species composition. RESULTS: There was a reduction of 84.9 per cent in the proportion of positive dips for Anopheles larvae/pupae and a reduction of 98.4 per cent in immature density (number/dip) of An. fluviatilis in the experimental downstream compared to the control following opening of the sluice gates. INTERPRETATION & CONCLUSIONS: Our findins showed that opening of sluice gates of the bed-dam regularly once in a week resulted in the control of vector breeding in the downstream due to the flushing effect of the water released with a high flow from the bed-dam that stagnated water in the upstream. The outcome of the study encourages upscaling this measure to other areas, wherever feasible.
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spelling pubmed-42165052014-11-05 Environmental management through sluice gated bed-dam: a revived strategy for the control of Anopheles fluviatilis breeding in streams Sahu, S.S. Gunasekaran, K. Jambulingam, P. Indian J Med Res Original Article BACKGROUND & OBJECTIVES: Integrated vector management (IVM) emphasizes sustainable eco-friendly methods and minimal use of chemicals. In this context, the present study highlights the environmental control of breeding of Anopheles fluviatilis, the primary malaria vector, through water management in a natural stream in Koraput district, Odisha, India. METHODS: The District Rural Development Agency (DRDA), Koraput, constructed two bed-dams across streams, one in Barigaon and the other in Pipalapodar village. The bed-dam in the former village was fitted with two sluice gates whereas the bed dam constructed in the latter village was without the sluice gate. The sluice gates were opened once in a week on a fixed day to flush out the water from the dam. Anopheles immatures were sampled systematically in the streams using a dipper for density measurement and species composition. RESULTS: There was a reduction of 84.9 per cent in the proportion of positive dips for Anopheles larvae/pupae and a reduction of 98.4 per cent in immature density (number/dip) of An. fluviatilis in the experimental downstream compared to the control following opening of the sluice gates. INTERPRETATION & CONCLUSIONS: Our findins showed that opening of sluice gates of the bed-dam regularly once in a week resulted in the control of vector breeding in the downstream due to the flushing effect of the water released with a high flow from the bed-dam that stagnated water in the upstream. The outcome of the study encourages upscaling this measure to other areas, wherever feasible. Medknow Publications & Media Pvt Ltd 2014-08 /pmc/articles/PMC4216505/ /pubmed/25297364 Text en Copyright: © Indian Journal of Medical Research http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Sahu, S.S.
Gunasekaran, K.
Jambulingam, P.
Environmental management through sluice gated bed-dam: a revived strategy for the control of Anopheles fluviatilis breeding in streams
title Environmental management through sluice gated bed-dam: a revived strategy for the control of Anopheles fluviatilis breeding in streams
title_full Environmental management through sluice gated bed-dam: a revived strategy for the control of Anopheles fluviatilis breeding in streams
title_fullStr Environmental management through sluice gated bed-dam: a revived strategy for the control of Anopheles fluviatilis breeding in streams
title_full_unstemmed Environmental management through sluice gated bed-dam: a revived strategy for the control of Anopheles fluviatilis breeding in streams
title_short Environmental management through sluice gated bed-dam: a revived strategy for the control of Anopheles fluviatilis breeding in streams
title_sort environmental management through sluice gated bed-dam: a revived strategy for the control of anopheles fluviatilis breeding in streams
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4216505/
https://www.ncbi.nlm.nih.gov/pubmed/25297364
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