Snail control method is one of the best ways to management fasciolosis. attractant pellets (bait) containing and molluscicide good alternative for Lymnaea acuminata, which a known intermediate host Fasciola gigantica. The result present study find attraction umbelliferone in snail (SAP) against vector different months year. Data shows that active molluscicidal component (umbelliferone) showed m...

molluscicidal activity of different organic solvent extracts of latex of euphorbia pulcherima and euphorbia hirta (family-euphorbiaceae) against two freshwater harmful snails lymnaea acuminata and indoplanorbis exustus has been reported. both the snails are the intermediate hosts of fasciola hepatica and fasciola gigantica, which cause endemic fascioliasis in cattle and livestock of eastern par...

The effects of short-chain alcohols (methanol, ethanol and n-propanol) on the fast-inactivating, A-type, potassium current of Lymnaea neurons were examined using macroscopic recording techniques. Alcohols produced a blockade of the current and modified its inactivation mechanism. The extracellular concentrations of methanol, ethanol and n-propanol causing 50% suppression of the current were 297...

In many infection experiments attention has been focused mainly on the rate of the larval development of F. hepatica and the number of rediae and mature cercariae produced by infected L. truncatula (Kendall, 1949; Roberts, 1950; Boray, 1969). Very little consideration has been given to the actual numbers of cercariae which emerge from infected snails. Knowledge of the output of cercariae from i...

Tributyltin (TBT) and triphenyltin (TPT) are emblematic endocrine disruptors, which have been mostly studied in gonochoric prosobranchs. Although both compounds can simultaneously occur in the environment, they have mainly been tested separately for their effects on snail reproduction. Because large discrepancies in experimental conditions occurred in these tests, the present study aimed to com...

Dietborne metal uptake prevails for many species in nature. However, the links between dietary metal exposure and toxicity are not well understood. Sources of uncertainty include the lack of suitable tracers to quantify exposure for metals such as copper, the difficulty to assess dietary processes such as food ingestion rate, and the complexity to link metal bioaccumulation and effects. We char...

Standard ecotoxicological tests are as simple as possible and food sources are mainly chosen for practical reasons. Since some organisms change their food preferences during the life-cycle, they might be food limited at some stage if we do not account for such a switch. As organisms tend to respond more sensitively to toxicant exposure under food limitation, the interpretation of test results m...

The pond snail, Lymnaea stagnalis, naturally inhabits slow flowing, shallow and stagnant environments in the northern temperate zone. Consequently, it will experience wide temperature fluctuations dependent on prevailing weather conditions. We hypothesize that periods of warming act as a thermal stressor to alter memory formation. Snails were exposed to an acute 1 h period of 30°C pond water an...