Factors affecting the acquisition of Plagiorchis noblei (Trematoda: Plagiorchiidae) cercariae by black fly (Diptera: Simuliidae) larvae and the effect of metacercariae on host survival.

Type

Article

Date of Publication

1993

Original Publication

Journal of the American Mosquito Control Association

Volume

9

Series / Issue

Issue: 1

Pages

036-045

Contributed by

American Mosquito Control Association

Notes

Author(s) - Jacobs P.Rau ME.Lewis DJ.

 

Abstract

Larvae of 4 species of black flies, Prosimulium mixtum, Simulium vittatum, S. decorum and Stegopterna mutata, were exposed in the laboratory to cercariae of the digenean Plagiorchis noblei in flowing water. Prevalence and intensity of infection of all species varied directly with exposure intensity and decreased with increasing water velocity; prevalence increased with larval size. Infection levels for P. mixtum were higher than for the 3 other species. Mortality among infected larvae of all species was 3 times that of controls. Exposure of black fly larvae to P. noblei cercariae may adversely affect their survival.

Notes

Author(s) - Jacobs P.Rau ME.Lewis DJ.