A comparison of devices for direct sampling of avian schistosome cercariae.
Gurski, Kata C.
1995
Abstract
Density and distribution of cercariae of digenetic trematodes are poorly understood because adequate methods for sampling this larval stage in a natural setting have not been developed. The purpose of the present study was to design an apparatus and develop a technique to determine relative numbers of avian schistosome cercariae along a lake shore. Three devices (with modifications) were designed and tested in both the laboratory and the field. The most efficient apparatus was a water pump used in conjunction with a column of 8-inch diameter sieves with mesh sizes ranging 1000-25 microns stacked top to bottom respectively. In laboratory trials, 79% of the cercariae were recovered in the 25-micron sieve. This technique shows great promise for both the prediction and control of swimmer's itch.Subjects
Zoology Research
Types
Working Paper
Metadata
Show full item recordAccessibility: If you are unable to use this file in its current format, please select the Contact Us link and we can modify it to make it more accessible to you.