View in EDS HTML Full Text PDF Full Text

Bioconcentration as a key driver of Hg bioaccumulation in high-trophic-level fish.

Saved in:
Bibliographic Details
Title: Bioconcentration as a key driver of Hg bioaccumulation in high-trophic-level fish.
Authors: Amptmeijer, David J.1 (AUTHOR) davidamptmeijer@gmail.com, Bieser, Johannes1 (AUTHOR)
Source: Biogeosciences. 2025, Vol. 22 Issue 22, p7425-7440. 16p.
Subject Terms: *Bioconcentration, *Bioaccumulation, *Methylmercury, *Mercury (Element), *Food chains, *Biomagnification, *Marine ecology, *Neurotoxicology
Abstract: The ability of monomethylmercury (MMHg+) to bioaccumulate in seafood is of concern due to its neurotoxic properties. The challenge in understanding MMHg+ bioaccumulation lies in the fact that its levels in higher trophic levels result from both bioconcentration and biomagnification. Furthermore, Hg can occur in several chemical species, including Hg2+ and MMHg+, which both bioaccumulate. Although the dominant pathway for MMHg+ bioaccumulation into seafood is the bioconcentration of MMHg+ in primary producers and the subsequent biomagnification to higher trophic levels, other pathways can contribute to MMHg+ bioaccumulation. In this study, we use a fully coupled 1D water column Hg bioaccumulation model to quantify how total bioaccumulation of Hg2+ and uptake of MMHg+ from the water (bioconcentration) in consumers affects the bioaccumulation of MMHg+ in high-trophic-level fish. The study is performed in three setups representing hydrodynamic conditions representative of the North and Baltic Seas. We find that Hg2+ bioaccumulation does not influence the bioaccumulation of MMHg+ but the bioconcentration of MMHg+ plays an important role. Although direct bioconcentration accounts for < 15 % of MMHg+ bioaccumulation in cod, the cumulative effect of bioconcentration on all trophic levels increases the MMHg+ content of cod by 28 %–49 %. These results demonstrate that bioconcentration in consumers is essential to accurately model the bioaccumulation of MMHg+ at higher trophic levels. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
Full text is not displayed to guests.
FullText Links:
  – Type: pdflink
Text:
  Availability: 1
Header DbId: enr
DbLabel: Energy & Power Source
An: 189709009
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Bioconcentration as a key driver of Hg bioaccumulation in high-trophic-level fish.
– Name: Author
  Label: Authors
  Group: Au
  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Amptmeijer%2C+David+J%2E%22&quot;&gt;Amptmeijer, David J.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;i&gt; davidamptmeijer@gmail.com&lt;/i&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Bieser%2C+Johannes%22&quot;&gt;Bieser, Johannes&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)
– Name: TitleSource
  Label: Source
  Group: Src
  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22Biogeosciences%22&quot;&gt;Biogeosciences&lt;/searchLink&gt;. 2025, Vol. 22 Issue 22, p7425-7440. 16p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Bioconcentration%22&quot;&gt;Bioconcentration&lt;/searchLink&gt;&lt;br /&gt;*&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Bioaccumulation%22&quot;&gt;Bioaccumulation&lt;/searchLink&gt;&lt;br /&gt;*&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Methylmercury%22&quot;&gt;Methylmercury&lt;/searchLink&gt;&lt;br /&gt;*&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Mercury+%28Element%29%22&quot;&gt;Mercury (Element)&lt;/searchLink&gt;&lt;br /&gt;*&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Food+chains%22&quot;&gt;Food chains&lt;/searchLink&gt;&lt;br /&gt;*&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Biomagnification%22&quot;&gt;Biomagnification&lt;/searchLink&gt;&lt;br /&gt;*&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Marine+ecology%22&quot;&gt;Marine ecology&lt;/searchLink&gt;&lt;br /&gt;*&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Neurotoxicology%22&quot;&gt;Neurotoxicology&lt;/searchLink&gt;
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The ability of monomethylmercury (MMHg+) to bioaccumulate in seafood is of concern due to its neurotoxic properties. The challenge in understanding MMHg+ bioaccumulation lies in the fact that its levels in higher trophic levels result from both bioconcentration and biomagnification. Furthermore, Hg can occur in several chemical species, including Hg2+ and MMHg+, which both bioaccumulate. Although the dominant pathway for MMHg+ bioaccumulation into seafood is the bioconcentration of MMHg+ in primary producers and the subsequent biomagnification to higher trophic levels, other pathways can contribute to MMHg+ bioaccumulation. In this study, we use a fully coupled 1D water column Hg bioaccumulation model to quantify how total bioaccumulation of Hg2+ and uptake of MMHg+ from the water (bioconcentration) in consumers affects the bioaccumulation of MMHg+ in high-trophic-level fish. The study is performed in three setups representing hydrodynamic conditions representative of the North and Baltic Seas. We find that Hg2+ bioaccumulation does not influence the bioaccumulation of MMHg+ but the bioconcentration of MMHg+ plays an important role. Although direct bioconcentration accounts for &lt; 15 % of MMHg+ bioaccumulation in cod, the cumulative effect of bioconcentration on all trophic levels increases the MMHg+ content of cod by 28 %–49 %. These results demonstrate that bioconcentration in consumers is essential to accurately model the bioaccumulation of MMHg+ at higher trophic levels. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=189709009
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.5194/bg-22-7425-2025
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 16
        StartPage: 7425
    Subjects:
      – SubjectFull: Bioconcentration
        Type: general
      – SubjectFull: Bioaccumulation
        Type: general
      – SubjectFull: Methylmercury
        Type: general
      – SubjectFull: Mercury (Element)
        Type: general
      – SubjectFull: Food chains
        Type: general
      – SubjectFull: Biomagnification
        Type: general
      – SubjectFull: Marine ecology
        Type: general
      – SubjectFull: Neurotoxicology
        Type: general
    Titles:
      – TitleFull: Bioconcentration as a key driver of Hg bioaccumulation in high-trophic-level fish.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Amptmeijer, David J.
      – PersonEntity:
          Name:
            NameFull: Bieser, Johannes
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 15
              M: 11
              Text: 2025
              Type: published
              Y: 2025
          Identifiers:
            – Type: issn-print
              Value: 17264170
          Numbering:
            – Type: volume
              Value: 22
            – Type: issue
              Value: 22
          Titles:
            – TitleFull: Biogeosciences
              Type: main
ResultId 1