Figure 4: Gut of D. magna after 48 h exposure to deltametrhin (50 μg L-1) in water. Elements shown are nitrogen (as CN), phosphorus and bromine, as obtained by the NanoSIMS. Brightness indicates higher concentration. Raster size 40 μm, acquisition time 30 min. D: Desmodesmus subspicatus (algae), GW: gut wall, L: lumen with food particles, M: microvilli layer, P: peritrophic membrane. Reprinted with permission from [19].