Silver nanoparticles impact the functional role of Gammarus roeseli (Crustacea Amphipoda) - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Environmental Pollution Année : 2016

Silver nanoparticles impact the functional role of Gammarus roeseli (Crustacea Amphipoda)

Résumé

Silver nanoparticles (nAg) are widely used in consumer products and the risk associated with their potential release into freshwater ecosystems needs to be addressed using environmentally realistic exposure concentrations. Here, the effects of low concentrations (0.5–5 μg L−1) of two different sized nAg (10 and 60 nm) and a silver nitrate positive control were evaluated in Gammarus roeseli following exposure for 72 h. Cellular, individual and functional endpoints were independently studied and the most striking results were reported for functional endpoints. Indeed, without a change in their feeding activity, the gammarids produced significantly fewer fine particles of organic matter when exposed to nAg, even at 0.5 μg L-1 of 10 nm nAg. These functional endpoints seem to be efficient markers for detecting the early effects of nAg on G. roeseli.
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Dates et versions

hal-01251699 , version 1 (06-01-2016)

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Citer

Jennifer Andreï, Sandrine Pain-Devin, Vincent Felten, Simon Devin, Laure Giambérini, et al.. Silver nanoparticles impact the functional role of Gammarus roeseli (Crustacea Amphipoda). Environmental Pollution, 2016, 208, pp.608-618. ⟨10.1016/j.envpol.2015.10.036⟩. ⟨hal-01251699⟩
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