Acute toxicity of apple snail Pomacea canaliculata's eggs on Rhinella arenarum tadpoles

作者：Carlos Lajmanovich Rafael; Maximiliano Attademo Andres; Mariela Peltzer Paola; Maria Junges Celina; Soledad Martinuzzi Candela

来源：Toxin Reviews, 2017, 36(1): 45-51.

DOI：10.1080/15569543.2016.1243561

• Amphibians
• crude homogenate of snail eggs
• enzymes
• swimming behavior
• natural toxin

The effect of the crude homogenate of snail Pomacea canaliculata's eggs (CHSE) exposition on Rhinella arenarum tadpoles was investigated. Exposure to 10g CHSE/L treatment produced 95% tadpole mortality, whereas the median lethal concentration (48-h LC50) was 4.35g/L. Moreover, CHSE inhibited significantly the activities of acetylcholinesterase (AChE) and glutathione-S-transferase (GST) with respect to control tadpoles, and modified tadpoles swimming behavior. Together all these evidences indicate that eggs of snail P. canaliculata have a neurotoxic effect on tadpoles limiting survival at low concentrations and short time exposition.

• 出版日期2017