Energetic endpoints provide early indicators of life history effects in a freshwater gastropod exposed to the fungicide, pyraclostrobin

Environmental Pollution
Bridgette N FidderChristopher J Salice

Abstract

Organismal energetics provide important insights into the effects of environmental toxicants. We aimed to determine the effects of pyraclostrobin on Lymnaea stagnalis by examining energy allocation patterns and life history traits. Juvenile snails exposed to pyraclostrobin decreased feeding rate and increased apparent avoidance behaviors at environmentally relevant concentrations. In adults, we found that sublethal concentrations of pyraclostrobin did not affect reproductive output, however, there were significant effects on developmental endpoints with longer time to hatch and decreased hatching success in pyraclostrobin-exposed egg masses. Further, there were apparent differences in developmental effects depending on whether mothers were also exposed to pyraclostrobin suggesting this chemical can exert intergenerational effects. Pyraclostrobin also affected protein and carbohydrate content of eggs in mothers that were exposed to pyraclostrobin. Significant effects on macronutrient content of eggs occurred at lower concentrations than effects on gross endpoints such as hatching success and time to hatch suggesting potential value for these endpoints as early indicators of ecologically relevant stress. These results provide imp...Continue Reading

References

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Citations

Sep 25, 2016·Ecotoxicology·Evelyn G Reátegui-ZirenaChristopher J Salice
Aug 18, 2016·Environmental Toxicology and Chemistry·Hung T VuVincent J Pettigrove
Dec 22, 2017·Environmental Toxicology and Chemistry·Bridgette N FidderChristopher J Salice
Jun 15, 2018·Environmental Toxicology and Chemistry·Evelyn G Reátegui-Zirena, Christopher J Salice
Oct 9, 2020·Ecotoxicology and Environmental Safety·Caio Eduardo da Costa DominguesOsmar Malaspina
Mar 7, 2021·The Science of the Total Environment·Xueping HuangWei Mu
Nov 5, 2019·Gene·Manon FalletCéline Cosseau
Dec 4, 2021·Environmental Science and Pollution Research International·Katrin WeiseDirk Jungmann

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