Impact of Cadmium on Feeding Response and Growth of Filicaulis alte Ferussac and Macrochlamys indica Godwin-Austen

摘要

The bait was offered containing different concentration of cadmium (50 ppm, 100 ppm, 200 ppm, 400 ppm and 800 ppm) in no cfioice laboratory feeding tests, to study the effect on feeding responses and mortality of snail {Macrochlamys indica) and slug {Filicaulis alte). Presence of cadmium resulted in inhibition of feeding in dose dependant manner. Low mortality was recorded in treatments. Juvenile slugs when exposed to lowest concentration of cadmium showed a decrease in weight along with mortality, which suggests that slug was more sensitive to cadmium contaminated food and can be used as bio-indicator of cadmium laden sites.