Indan Journal of Medical Research Indan Journal of Medical Research Indan Journal of Medical Research Indan Journal of Medical Research
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Year : 2014  |  Volume : 140  |  Issue : 4  |  Page : 551-555

Functional response analysis of Anisops sardea (Hemiptera: Notonectidae) against Culex quinquefasciatus in laboratory condition

1 Department of Zoology, Bankura Sammilani College, Bankura, India
2 Department of Zoology, Bankura Christian College, Bankura, India
3 Department of Mathematics, Bankura Christian College, Bankura, India
4 Department of Parasitology Laboratory, Mosquito & Microbiology Research Units, The University of Burdwan, Burdwan, India

Correspondence Address:
Professor Goutam Chandra
Department of Zoology, Mosquito & Microbiology Research Unit Parasitology Laboratory, Burdwan Universiry, Burdwan 713 104
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Source of Support: None, Conflict of Interest: None

PMID: 25488451

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Background & objectives: Culex quinquefasciatus is the principal vector of lymphatic filariasis (LF). Application of alternative vector control methodologies are aimed at reduction of mosquito breeding sites and biting activity through the use of biological control methods. In the present study, functional response of aquatic Hemipteran backswimmer, Anisops sardea was assessed against Cx. quinquefasciatus larvae in laboratory bioassay. Methods: The functional respons of A. sardea was assessed against III rd instar larvae of Cx. quinquefasciatus. Respective handling times and coefficient of attack rates were determined by a non linear polynomeal regression equation. Results: The results of rates of predation in variable prey densities exhibited a 'linear rise to plateau curve', associated with 'Type -II' functional response. The logistic regression estimated a significant negative linear parameter (P 1 <0) which also supported the same observation. Associated 'attack rates' and 'handling times' were also calculated using the Holling Disc Equation. Interpretation & conclusions: The results of present experiments indicate that A. sardea can be used as a biocontrol agent against the larval forms of Cx. quinquefasciatus in temporarily available breeding places of mosquito with relatively clear water. However, a detailed field study has to be done to confirm these findings.

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