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Tytuł:
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Long-term effects of sediment-associated silver nanoparticles and silver nitrate on the deposit-feeding polychaete Capitella teleta.
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Autorzy:
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Nielsen MB; Department of Environmental Engineering, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark. Electronic address: .
Vavra J; School of Biological Sciences, University of Nebraska-Lincoln, United States.
Palmqvist A; Department of Science and Environment, Roskilde University, Denmark.
Forbes VE; Department of Ecology, Evolution and Behavior, University of Minnesota, United States.
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Źródło:
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Aquatic toxicology (Amsterdam, Netherlands) [Aquat Toxicol] 2022 Jan; Vol. 242, pp. 106046. Date of Electronic Publication: 2021 Nov 26.
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Original Publication: Amsterdam, Netherlands : Elsevier/North Holland Biomedical Press, c1981-
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MeSH Terms:
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Metal Nanoparticles*/toxicity
Water Pollutants, Chemical*/toxicity
Polychaeta/*drug effects
Silver Nitrate/*toxicity
Animals ; Geologic Sediments ; Silver/toxicity
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Contributed Indexing:
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Keywords: Deposit-feeder; Ecotoxicity; Long-term exposure; Sediment; Silver nanoparticles; Silver nitrate
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Substance Nomenclature:
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0 (Water Pollutants, Chemical)
3M4G523W1G (Silver)
95IT3W8JZE (Silver Nitrate)
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Entry Date(s):
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Date Created: 20211205 Date Completed: 20211228 Latest Revision: 20220531
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Update Code:
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20240105
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DOI:
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10.1016/j.aquatox.2021.106046
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PMID:
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34864387
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Aquatic sediments are predicted to be an important sink for released silver nanoparticles (AgNPs). Knowing the long-term effects of AgNPs on benthic deposit-feeders is therefore an important step towards assessing their potential environmental risks. The aim of this study was to examine the effects on survival, growth and reproduction of the deposit-feeding polychaete Capitella teleta exposed for ten weeks to sediment-associated un-coated AgNPs or silver nitrate (AgNO 3 ). C. teleta exhibited tolerance towards exposure to both AgNPs and AgNO 3 . Significant effects were observed for percentage of pairs that reproduced as well as worm growth after eight weeks, but the effects did not show a clear concentration- or Ag type-dependent pattern. Further investigations of long-term effects of un-coated AgNPs in additional sediment-dwelling organisms are needed and should involve comparisons to coated AgNPs.
(Copyright © 2021. Published by Elsevier B.V.)
