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Data acquired in laboratory experiments conducted with the crustacean Daphnia magna to characterize Ag bioaccumulation kinetics after exposures to AgNO3 or Ag nanoparticles, 2019-2021

Dates

Publication Date
Start Date
2019-04-01
End Date
2021-07-20

Citation

Croteau, M.N., Lesser, E., Sheikh, F.N., Sikder, M., Franklin, N., Baalousha, M., and Ismail, N.S., 2021. Data acquired in laboratory experiments conducted with the crustacean Daphnia magna to characterize Ag bioaccumulation kinetics after exposures to AgNO3 or Ag nanoparticles, 2019-2021: U.S. Geological Survey data release, https://doi.org/10.5066/P9JPQLUN.

Summary

Silver nanoparticles (AgNP) are one type of contaminant that can enter treatment wetlands (Wiesner 2006) and impact the overall treatment efficacy. Grazing by filter feeding zooplankton, such as Daphnia magna, is critical to treatment wetland functioning (Ismail 2019), but the effects of AgNP on zooplankton are not fully understood, especially at environmentally relevant concentrations. In this study, the bioaccumulation kinetics of dissolved and nanoparticulate Ag in D. magna exposed to environmentally relevant Ag concentrations were characterized using isotopically labelled Ag as a tracer. References: Wiesner MR, Lowry GV, Alvarez P, Dionysiou D, Biswas P. 2006. Assessing the Risks of Manufactured Nanomaterials. Environmental Science [...]

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T2_Biota.xlsx 69.76 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
T3_QAQC v2.xlsx 47.46 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
T1_Media v2.xlsx 69.44 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Daphnia.jpg
“Daphnia magna 40x magnification Photo credit: Emma B Lesser”
thumbnail 230.72 KB image/jpeg

Purpose

This data release makes available data from laboratory experiments conducted with the aquatic crustacean Daphnia magna to study the underlying processes controlling silver (Ag) bioaccumulation. Specifically, conditional rate constants for aqueous Ag uptake, dietary Ag uptake and Ag elimination were parameterized after aqueous and dietary exposures to AgNO3 and Ag nanoparticles. Data were used to assess the influence of water chemistry, silver form and exposure route on Ag bioaccumulation.
Daphnia magna 40x magnification Photo credit: Emma B Lesser
Daphnia magna 40x magnification Photo credit: Emma B Lesser

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  • USGS Data Release Products

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DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9JPQLUN

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