Comparison in the response of three European Gammarid species exposed to the growth regulator insecticide fenoxycarb
- 50 Downloads
Growth regulator insecticides with juvenoid activity can affect the development and reproduction of non-target organisms such as crustaceans. In this perspective, our previous studies revealed deleterious effects of the juvenoid fenoxycarb at 5 μg L−1 on the embryogenesis and at 50 μg L−1 on the reproductive behavior of the amphipod Gammarus fossarum. In the present study, to determine whether data generated with one amphipod species can be extended to other gammarid species, we tested the effects of a 5 μg L−1 fenoxycarb exposure on three European amphipod species: G. fossarum, Gammarus roeseli, and Echinogammarus longisetosus. We exposed individually 60 freshly fertilized females to fenoxycarb throughout the entire oogenesis/embryogenesis cycle (i.e., 19 days). In newborn individuals from exposed embryos, we measured both pigmentation and lipid reserve impairments while in exposed females, we observed reproductive behavior. At 5 μg L−1 fenoxycarb, reproductive behavior was only altered in G. fossarum. This study demonstrates the variability of the toxic response among the three gammaridae species, underlining the need for acquiring data with a broad phylogenetic representation to better predict toxic effects on freshwater ecosystems.
KeywordsGammarid Juvenoid insecticide Reproductive success Embryogenesis Species-dependent response
This research was financially supported by the French Ec2co program.
- EFSA (2010) Conclusion on the peer review of the pesticide risk assessment of the active substance fenoxycarb. EFSA J 8:1779Google Scholar
- Geffard O, Xuereb B, Chaumot A, Geffard A, Abbaci K, Charmantier G, Garric J, Charmantier-Daures M (2010) Ovarian cycle and embryonic development in Gammarus fossarum: application for reproductive toxicity assessment. Environ Toxicol Chem 29:2249–2259. https://doi.org/10.1002/etc.268 CrossRefGoogle Scholar
- Jubeaux G, Simon R, Salvador A, Quéau H, Chaumot A, Geffard O (2012) Vitellogenin-like proteins in the freshwater amphipod Gammarus fossarum (Koch, 1835): functional characterization throughout reproductive process, potential for use as an indicator of oocyte quality and endocrine disruption biomarker in males. Aquat Toxicol 112–113:72–82. https://doi.org/10.1016/j.aquatox.2012.01.011 CrossRefGoogle Scholar
- Loayza-Muro RA, Marticorena-Ruiz JK, Palomino EJ, Merritt C, De Baat ML, Gemert MV, Verweij RA, Kraak MHS, Admiraal W (2013) Persistence of chironomids in metal polluted Andean high altitude streams: does melanin play a role? Environ Sci Technol 47:601–607. https://doi.org/10.1021/es302779b CrossRefGoogle Scholar
- Nates S, McKenney C (2000) Growth, lipid class and fatty acid composition in juvenile mud crabs (Rhithropanopeus harrisii) following larval exposure to Fenoxycarb®, insect juvenile hormone analog. Comp Biochem Physiol Part C 127:317–325Google Scholar
- R development Core Team (2017) R: a language and environment for statistical computing. R foundation for statistical computing, Vienna. Available: http://www.R-project.org. Accessed 15 Sept 2017