[Vertical migration of cercariae of the littoral trematode Renicola thaidus (Trematoda: Renicolidae) in the water layer].

Abstract

Vertical dispersion of the cercariae Renicola thaidus in the water layer was examined in experiments. Dispersion of larvae of 1 and 6 hours old were investigated in different conditions of illumination. It was found out that in the first hour of life the larvae both in light and dark conditions display a negative geotaxis. 6 hours later, the reaction alternates. Both in light and dark condition, the larvae show a positive geotaxis. This changes of vertical dispersion is the result of inversion of the reaction onto the gravitation, that depends on biology of cercariae examined.

Cite this paper

@article{Prokofev2002VerticalMO, title={[Vertical migration of cercariae of the littoral trematode Renicola thaidus (Trematoda: Renicolidae) in the water layer].}, author={V V Prokof'ev}, journal={Parazitologiia}, year={2002}, volume={36 4}, pages={316-23} }