title: Functional response analysis of Anisops sardea (Hemiptera: Notonectidae) against Culex quinquefasciatus in laboratory condition.
abstract: OBJECTIVE
  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.
  
  
  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.
authors.forename: Rajendra Prasad
authors.initials: RP
authors.lastname: Mondal
authors.forename: Anupam
authors.initials: A
authors.lastname: Ghosh
authors.forename: Subhasis
authors.initials: S
authors.lastname: Bandyopadhyay
authors.affiliation: Department of Parasitology Laboratory, Mosquito & Microbiology Research Units, The University of Burdwan, Burdwan, India.
authors.forename: Goutam
authors.initials: G
authors.lastname: Chandra
mesh_terms: D000818:Animals; D003465:Culex / Q000472:pathogenicity* / Q000502:physiology; D004605:Elephantiasis, Filarial / Q000517:prevention & control* / Q000635:transmission; D006430:Hemiptera / Q000502:physiology*; D006801:Humans; D009032:Mosquito Control; D010572:Pest Control, Biological