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The effect of Ambrosia maritima (Damsissa) on the viability of Lymnaea cailliaudi; an experimental study
L M Abou Basha1, M H el Sayad, A F Allam
1Department of Parasitology, Alexandria University, Egypt.
Abstract:
The present work aimed at studying the effect of Ambrosia maritima (Damsissa) on the viability of Lymnaea snails. Lymnaea snails used in these trials were acclimatized to laboratory conditions before use in the toxicity test. The snails were exposed to various concentrations (100-3000 mg/l) of dry powdered Damsissa, Ambrosia maritima was lethal to Lymnaea snails at concentration of 3000 mg/L after one day and at 100 mg/l after 14 days.
Insights
Ambrosia maritima, also known as Damsissa, effectively reduces Lymnaea snail populations. This study shows Damsissa is lethal to snails at concentrations as low as 100 mg/L over 14 days, offering a potential natural control method.
Area of Science:
- Environmental Science
- Ecotoxicology
- Malacology
Background:
- Lymnaea snails are significant freshwater gastropods.
- Controlling snail populations is crucial in various ecological and health contexts.
- Ambrosia maritima (Damsissa) is a plant with potential biological activities.
Purpose of the Study:
- To investigate the molluscicidal effects of Ambrosia maritima (Damsissa) on Lymnaea snails.
- To determine the lethal concentrations and exposure times for Damsissa against Lymnaea snails.
Main Methods:
- Lymnaea snails were acclimatized to laboratory conditions.
- Snails were exposed to varying concentrations of dry powdered Ambrosia maritima (100-3000 mg/L).
- Snail viability was monitored over a 14-day period.
Main Results:
- Ambrosia maritima demonstrated significant toxicity to Lymnaea snails.
- A concentration of 3000 mg/L proved lethal within one day.
- A lower concentration of 100 mg/L was lethal after 14 days of exposure.
Conclusions:
- Ambrosia maritima possesses potent molluscicidal properties against Lymnaea snails.
- Damsissa can be considered a potential agent for biological control of Lymnaea snail populations.
- Further research could explore optimal application methods and ecological impact.

