Variable toxicity of inorganic mercury compounds to Artemia elicited by coexposure with dissolved organic matter.

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  • Additional Information
    • Source:
      Publisher: Springer Country of Publication: Germany NLM ID: 9441769 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1614-7499 (Electronic) Linking ISSN: 09441344 NLM ISO Abbreviation: Environ Sci Pollut Res Int Subsets: MEDLINE
    • Publication Information:
      Publication: <2013->: Berlin : Springer
      Original Publication: Landsberg, Germany : Ecomed
    • Subject Terms:
      Artemia*/drug effects ; Water Pollutants, Chemical*/toxicity ; Mercury Compounds*/toxicity; Animals ; Mercury/toxicity ; Seawater/chemistry
    • Abstract:
      The chemical behavior of mercury (Hg) and its interactions with naturally occurring ligands shape its environmental fate and impact. The neurotoxic properties of Hg are widely known and studied both in vitro and in vivo. However, there continues to be limited information on the influence of chelation with large organic ligands on the toxicity to marine macro-organisms. This work examined the effect of Hg complexed with various types of dissolved organic matter (DOM) on the mortality and hatching success of Artemia sp. nauplii under varying marine media conditions. The results confirmed both, an alleviating as well as additive, DOM-specific, effect on mortality. DOM coexposure resulted in a compound specific decreased or increased toxicity in comparison with single exposure in artificial seawater, with LC 50 values ranging from 2.11 to 62.89 µM. Hatching success under conditions of Hg exposure was almost two orders of magnitude more sensitive than toxicity in hatched individuals. Elevated DOM concentrations had no statistically significant impact on hatching success with computed EC 50 values ranging from 196 to 324 nM.
      Competing Interests: Declarations. Ethics approval: Not applicable. Consent to participate: Not applicable. Consent to publish: Not applicable. Competing interests: The authors declare no competing interests.
      (© 2024. The Author(s).)
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    • Grant Information:
      RG15508-11 Chevron
    • Contributed Indexing:
      Keywords: Bioaccumulation; Ecotoxicology; Hatching assay; Marine environment
    • Accession Number:
      0 (Water Pollutants, Chemical)
      0 (Mercury Compounds)
      FXS1BY2PGL (Mercury)
    • Publication Date:
      Date Created: 20241121 Date Completed: 20241206 Latest Revision: 20241209
    • Publication Date:
      20241210
    • Accession Number:
      PMC11624217
    • Accession Number:
      10.1007/s11356-024-35558-y
    • Accession Number:
      39570530