Swimming ability in tadpoles of Physalaemus cf. cuvieri, Scinax x-signatus and Leptodactylus latrans (amphibia: anura) exposed to the insecticide chlorpyrifos
DOI:
https://doi.org/10.5132/eec.2021.01.02Keywords:
Amphibians, Chlorpyrifos, Organophosphorus insecticide, Swimming speed, LarvaeAbstract
We examined the swimming abilities of tadpoles exposed to the organophosphate chlorpyrifos for 24 h (at concentrations of 0, 1, 5 and 10 μg L-1). Scinax x - signatus, Physalaemus cf cuvieri, and Leptodactylus latrans tadpoles were used as biological models. Our findings evidenced decreased swimming speeds in all tadpole species exposed to chlorpyrifos as compared to the control group, although with significant statistical differences only with P. cuvieri and L. latrans. Changes in swimming ability may indirectly lead to death or alter important growth and development parameters, as the reduced ability to swim can result in increased vulnerability to predators and impacts on feeding, thus altering their fitness.
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