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Behaviour of damselfly larvae ( Enallagma cyathigerum) (Insecta, Odonata) after long-term exposure to PFOS
Perfluorooctane sulfonic acid (PFOS) is a persistent and ubiquitous environmental contaminant that has been detected in organisms worldwide. Here, we evaluate whether long-term (1 and 4 months) exposure to PFOS contamination affects the behavioural performance of freshwater larvae of the damselfly E...
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Published in: | Environmental pollution (1987) 2009-04, Vol.157 (4), p.1332-1336 |
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Main Authors: | , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Perfluorooctane sulfonic acid (PFOS) is a persistent and ubiquitous environmental contaminant that has been detected in organisms worldwide. Here, we evaluate whether long-term (1 and 4
months) exposure to PFOS contamination affects the behavioural performance of freshwater larvae of the damselfly
Enallagma cyathigerum (Insecta: Odonata). Our results show reduced behavioural performance with increasing PFOS concentration. In 1
month exposed larvae, no observed effect concentrations (NOECs) were 100
μg/L for general activity. In 4
months exposed larvae, NOECs were 10
μg/L, for each behavioural trait, except swimming acceleration of male larvae where the NOEC was 100
μg/L. When faced with PFOS concentrations above the NOEC,
E. cyathigerum larvae were less active, less capable to escape a simulated predator attack and less efficient in foraging. Together, our results show that damselfly larvae suffer reduced survival-related behavioural performance.
Long-term laboratory exposure to perfluorooctane sulfonic acid decreases behavioural performance of damselfly larvae (Insecta: Odonata). |
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ISSN: | 0269-7491 1873-6424 |
DOI: | 10.1016/j.envpol.2008.11.031 |