Acute toxicity of apple snail Pomacea canaliculata’s eggs on Rhinella arenarum tadpoles |
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| Authors: | Rafael Carlos Lajmanovich Andrés Maximiliano Attademo Paola Mariela Peltzer Celina María Junges Candela Soledad Martinuzzi |
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| Institution: | 1. CONICET-FBCB-UNL Pje, Santa Fe, Argentina and;2. Laboratorio de Ecotoxicología, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (FBCB-UNL-CONICET), Santa Fe, Argentina;3. Laboratorio de Ecotoxicología, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (FBCB-UNL-CONICET), Santa Fe, Argentina |
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| Abstract: | The effect of the crude homogenate of snail Pomacea canaliculata’s eggs (CHSE) exposition on Rhinella arenarum tadpoles was investigated. Exposure to 10?g CHSE/L treatment produced 95% tadpole mortality, whereas the median lethal concentration (48-h LC50) was 4.35?g/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. |
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| Keywords: | Amphibians crude homogenate of snail eggs enzymes swimming behavior natural toxin |
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