Academic Journal
Προβολή σε EDS
Συνδεδεμένο Πλήρες Κείμενο

Sediment phosphorus legacy and internal loading delay lake recovery in Azorean volcanic lakes.

Λεπτομέρειες βιβλιογραφικής εγγραφής
Τίτλος: Sediment phosphorus legacy and internal loading delay lake recovery in Azorean volcanic lakes.
Συγγραφείς: Martins G; CEB - Centre of Biological Engineering, University of Minho, Campus de Gualtar, Braga, 4710-057, Portugal; LABBELS - Associate Laboratory, Braga/Guimarães, Portugal. Electronic address: gilberto.martins@ceb.uminho.pt., Castro R; CEB - Centre of Biological Engineering, University of Minho, Campus de Gualtar, Braga, 4710-057, Portugal., Malcata A; DROTRH - Regional Directorate for Spatial Planning and Water Resources, Av. Antero de Quental, n.° 9C - 2° Andar, Ponta Delgada, São Miguel, Azores, 9500-160, Portugal., Cymbron R; DROTRH - Regional Directorate for Spatial Planning and Water Resources, Av. Antero de Quental, n.° 9C - 2° Andar, Ponta Delgada, São Miguel, Azores, 9500-160, Portugal., Brito AG; LEAF - Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, Lisboa, 1349-017, Portugal., Peixoto L; CEB - Centre of Biological Engineering, University of Minho, Campus de Gualtar, Braga, 4710-057, Portugal; BioData.pt | ELIXIR Portugal, R. da Quinta Grande, 9, Oeiras, 2780-156, Portugal.
Πηγή: Environmental research [Environ Res] 2026 Nov 01; Vol. 308 (Pt 1), pp. 125584. Date of Electronic Publication: 2026 Aug 29.
Τύπος έκδοσης: Journal Article
Γλώσσα: English
Στοιχεία περιοδικού: Publisher: Elsevier Country of Publication: Netherlands NLM ID: 0147621 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1096-0953 (Electronic) Linking ISSN: 00139351 NLM ISO Abbreviation: Environ Res Subsets: MEDLINE
Imprint Name(s): Publication: <2000- > : Amsterdam : Elsevier
Original Publication: New York, Academic Press.
Ιατρικοί όροι (MeSH): Geologic Sediments*/chemistry , Geologic Sediments*/analysis , Lakes*/chemistry , Phosphorus*/analysis , Water Pollutants, Chemical*/analysis, Eutrophication ; Environmental Monitoring ; Azores
Περίληψη: Phosphorus (P) stored in lake sediments can sustain eutrophication long after reductions in external nutrient inputs, delaying ecosystem recovery. This study investigated sediment P dynamics in four volcanic lakes of the Azores (Portugal) with contrasting trophic status (Fogo, Furnas, Verde-SC and Azul-SC) by integrating historical sediment P fractionation data (2006 and 2010) with 2023 sediment analyses, microcosm experiments and long-term diagenesis modelling. Sediment samples were analyzed for P fractions and subjected to microcosm experiments to assess P release under varying redox conditions. Additionally, a diagenesis model was developed to simulate long-term transformations and redistribution of P fractions. Total sediment P concentrations in the 2023 samples were higher than previously reported values in the historical datasets, with the highest concentrations observed in eutrophic lake Verde-SC and the lowest in oligotrophic lake Fogo. Organic P was the dominant fraction in the lakes Verde-SC and Azul-SC, accounting for up to 61 % and 51 % of total sediment P, respectively. Microcosm experiments demonstrated the strong influence of redox conditions on sediment P release, with maximum P release rates of 3.7 mg ·m-2·d-1 under anoxic conditions. Model simulations indicated that, even under the hypothetical cessation of external P inputs, reactive sediment P may continue to influence lake trophic status for decades, depending on lake-specific characteristics. These findings demonstrate that sediment P legacy constitutes a major constraint on the lake recovery and highlight the importance of incorporating sediment processes into restoration strategies. By combining historical sediment records, experimental measurements and diagenesis modelling, this study provides one of the first integrated assessments of P legacy in volcanic lakes.
(Copyright © 2026 The Authors. Published by Elsevier Inc. All rights reserved.)
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
Contributed Indexing: Keywords: Historical evolution; Microcosm; P diagenesis modelling; Phosphorus fractionation
Substance Nomenclature: 27YLU75U4W (Phosphorus)
0 (Water Pollutants, Chemical)
Entry Date(s): Date Created: 20260829 Date Completed: 20260929 Latest Revision: 20260929
Update Code: 20260930
DOI: 10.1016/j.envres.2026.125584
PMID: 42668055
Βάση Δεδομένων: MEDLINE
FullText Links:
  – Type: other
    Url: https://resolver.ebsco.com:443/public/rma-ftfapi/ejs/direct?AccessToken=420A95B62D6DFD4EA447&Show=Object
Text:
  Availability: 0
CustomLinks:
  – Url: https://www.doi.org/10.1016/j.envres.2026.125584?
    Name: ScienceDirect (all content) (s7799221)
    Category: fullText
    Text: View record from ScienceDirect
    MouseOverText: View record from ScienceDirect
Header DbId: cmedm
DbLabel: MEDLINE
An: 42668055
AccessLevel: 3
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Sediment phosphorus legacy and internal loading delay lake recovery in Azorean volcanic lakes.
– Name: Author
  Label: Authors
  Group: Au
  Data: &lt;searchLink fieldCode=&quot;AU&quot; term=&quot;%22Martins+G%22&quot;&gt;Martins G&lt;/searchLink&gt;; CEB - Centre of Biological Engineering, University of Minho, Campus de Gualtar, Braga, 4710-057, Portugal; LABBELS - Associate Laboratory, Braga/Guimar&#227;es, Portugal. Electronic address: gilberto.martins@ceb.uminho.pt.&lt;br /&gt;&lt;searchLink fieldCode=&quot;AU&quot; term=&quot;%22Castro+R%22&quot;&gt;Castro R&lt;/searchLink&gt;; CEB - Centre of Biological Engineering, University of Minho, Campus de Gualtar, Braga, 4710-057, Portugal.&lt;br /&gt;&lt;searchLink fieldCode=&quot;AU&quot; term=&quot;%22Malcata+A%22&quot;&gt;Malcata A&lt;/searchLink&gt;; DROTRH - Regional Directorate for Spatial Planning and Water Resources, Av. Antero de Quental, n.&#176; 9C - 2&#176; Andar, Ponta Delgada, S&#227;o Miguel, Azores, 9500-160, Portugal.&lt;br /&gt;&lt;searchLink fieldCode=&quot;AU&quot; term=&quot;%22Cymbron+R%22&quot;&gt;Cymbron R&lt;/searchLink&gt;; DROTRH - Regional Directorate for Spatial Planning and Water Resources, Av. Antero de Quental, n.&#176; 9C - 2&#176; Andar, Ponta Delgada, S&#227;o Miguel, Azores, 9500-160, Portugal.&lt;br /&gt;&lt;searchLink fieldCode=&quot;AU&quot; term=&quot;%22Brito+AG%22&quot;&gt;Brito AG&lt;/searchLink&gt;; LEAF - Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, Lisboa, 1349-017, Portugal.&lt;br /&gt;&lt;searchLink fieldCode=&quot;AU&quot; term=&quot;%22Peixoto+L%22&quot;&gt;Peixoto L&lt;/searchLink&gt;; CEB - Centre of Biological Engineering, University of Minho, Campus de Gualtar, Braga, 4710-057, Portugal; BioData.pt | ELIXIR Portugal, R. da Quinta Grande, 9, Oeiras, 2780-156, Portugal.
– Name: TitleSource
  Label: Source
  Group: Src
  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%220147621%22&quot;&gt;Environmental research&lt;/searchLink&gt; [Environ Res] 2026 Nov 01; Vol. 308 (Pt 1), pp. 125584. &lt;i&gt;Date of Electronic Publication: &lt;/i&gt;2026 Aug 29.
– Name: TypePub
  Label: Publication Type
  Group: TypPub
  Data: Journal Article
– Name: Language
  Label: Language
  Group: Lang
  Data: English
– Name: TitleSource
  Label: Journal Info
  Group: Src
  Data: &lt;i&gt;Publisher: &lt;/i&gt;&lt;searchLink fieldCode=&quot;PB&quot; term=&quot;%22Elsevier%22&quot;&gt;Elsevier &lt;/searchLink&gt;&lt;i&gt;Country of Publication: &lt;/i&gt;Netherlands &lt;i&gt;NLM ID: &lt;/i&gt;0147621 &lt;i&gt;Publication Model: &lt;/i&gt;Print-Electronic &lt;i&gt;Cited Medium: &lt;/i&gt;Internet &lt;i&gt;ISSN: &lt;/i&gt;1096-0953 (Electronic) &lt;i&gt;Linking ISSN: &lt;/i&gt;&lt;searchLink fieldCode=&quot;IS&quot; term=&quot;%2200139351%22&quot;&gt;00139351 &lt;/searchLink&gt;&lt;i&gt;NLM ISO Abbreviation: &lt;/i&gt;Environ Res &lt;i&gt;Subsets: &lt;/i&gt;MEDLINE
– Name: PublisherInfo
  Label: Imprint Name(s)
  Group: PubInfo
  Data: &lt;i&gt;Publication&lt;/i&gt;: &lt;2000- &gt; : Amsterdam : Elsevier&lt;br /&gt;&lt;i&gt;Original Publication&lt;/i&gt;: New York, Academic Press.
– Name: SubjectMESH
  Label: MeSH Terms
  Group: Su
  Data: &lt;searchLink fieldCode=&quot;MM&quot; term=&quot;%22Geologic+Sediments%22&quot;&gt;Geologic Sediments*&lt;/searchLink&gt;/&lt;searchLink fieldCode=&quot;MM&quot; term=&quot;%22Geologic+Sediments+chemistry%22&quot;&gt;chemistry&lt;/searchLink&gt; &lt;br /&gt;&lt;searchLink fieldCode=&quot;MM&quot; term=&quot;%22Geologic+Sediments%22&quot;&gt;Geologic Sediments*&lt;/searchLink&gt;/&lt;searchLink fieldCode=&quot;MM&quot; term=&quot;%22Geologic+Sediments+analysis%22&quot;&gt;analysis&lt;/searchLink&gt; &lt;br /&gt;&lt;searchLink fieldCode=&quot;MM&quot; term=&quot;%22Lakes%22&quot;&gt;Lakes*&lt;/searchLink&gt;/&lt;searchLink fieldCode=&quot;MM&quot; term=&quot;%22Lakes+chemistry%22&quot;&gt;chemistry&lt;/searchLink&gt; &lt;br /&gt;&lt;searchLink fieldCode=&quot;MM&quot; term=&quot;%22Phosphorus%22&quot;&gt;Phosphorus*&lt;/searchLink&gt;/&lt;searchLink fieldCode=&quot;MM&quot; term=&quot;%22Phosphorus+analysis%22&quot;&gt;analysis&lt;/searchLink&gt; &lt;br /&gt;&lt;searchLink fieldCode=&quot;MM&quot; term=&quot;%22Water+Pollutants%2C+Chemical%22&quot;&gt;Water Pollutants, Chemical*&lt;/searchLink&gt;/&lt;searchLink fieldCode=&quot;MM&quot; term=&quot;%22Water+Pollutants%2C+Chemical+analysis%22&quot;&gt;analysis&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;MH&quot; term=&quot;%22Eutrophication%22&quot;&gt;Eutrophication&lt;/searchLink&gt; ; &lt;searchLink fieldCode=&quot;MH&quot; term=&quot;%22Environmental+Monitoring%22&quot;&gt;Environmental Monitoring&lt;/searchLink&gt; ; &lt;searchLink fieldCode=&quot;MH&quot; term=&quot;%22Azores%22&quot;&gt;Azores&lt;/searchLink&gt;
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Phosphorus (P) stored in lake sediments can sustain eutrophication long after reductions in external nutrient inputs, delaying ecosystem recovery. This study investigated sediment P dynamics in four volcanic lakes of the Azores (Portugal) with contrasting trophic status (Fogo, Furnas, Verde-SC and Azul-SC) by integrating historical sediment P fractionation data (2006 and 2010) with 2023 sediment analyses, microcosm experiments and long-term diagenesis modelling. Sediment samples were analyzed for P fractions and subjected to microcosm experiments to assess P release under varying redox conditions. Additionally, a diagenesis model was developed to simulate long-term transformations and redistribution of P fractions. Total sediment P concentrations in the 2023 samples were higher than previously reported values in the historical datasets, with the highest concentrations observed in eutrophic lake Verde-SC and the lowest in oligotrophic lake Fogo. Organic P was the dominant fraction in the lakes Verde-SC and Azul-SC, accounting for up to 61 % and 51 % of total sediment P, respectively. Microcosm experiments demonstrated the strong influence of redox conditions on sediment P release, with maximum P release rates of 3.7 mg &#183;m&lt;superscript&gt;-2&lt;/superscript&gt;&#183;d&lt;superscript&gt;-1&lt;/superscript&gt; under anoxic conditions. Model simulations indicated that, even under the hypothetical cessation of external P inputs, reactive sediment P may continue to influence lake trophic status for decades, depending on lake-specific characteristics. These findings demonstrate that sediment P legacy constitutes a major constraint on the lake recovery and highlight the importance of incorporating sediment processes into restoration strategies. By combining historical sediment records, experimental measurements and diagenesis modelling, this study provides one of the first integrated assessments of P legacy in volcanic lakes.&lt;br /&gt; (Copyright &#169; 2026 The Authors. Published by Elsevier Inc. All rights reserved.)
– Name: Abstract
  Label: Competing Interests
  Group: Ab
  Data: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
– Name: SubjectMinor
  Label: Contributed Indexing
  Group:
  Data: &lt;i&gt;Keywords: &lt;/i&gt;Historical evolution; Microcosm; P diagenesis modelling; Phosphorus fractionation
– Name: NumberCAS
  Label: Substance Nomenclature
  Group: ID
  Data: 27YLU75U4W (Phosphorus)&lt;br /&gt;0 (Water Pollutants, Chemical)
– Name: DateEntry
  Label: Entry Date(s)
  Group: Date
  Data: &lt;i&gt;Date Created: &lt;/i&gt;20260829 &lt;i&gt;Date Completed: &lt;/i&gt;20260929 &lt;i&gt;Latest Revision: &lt;/i&gt;20260929
– Name: DateUpdate
  Label: Update Code
  Group: Date
  Data: 20260930
– Name: DOI
  Label: DOI
  Group: ID
  Data: 10.1016/j.envres.2026.125584
– Name: AN
  Label: PMID
  Group: ID
  Data: 42668055
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=cmedm&AN=42668055
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.envres.2026.125584
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        StartPage: 125584
    Subjects:
      – SubjectFull: Eutrophication
        Type: general
      – SubjectFull: Environmental Monitoring
        Type: general
      – SubjectFull: Azores
        Type: general
      – SubjectFull: Geologic Sediments chemistry
        Type: general
      – SubjectFull: Geologic Sediments analysis
        Type: general
      – SubjectFull: Lakes chemistry
        Type: general
      – SubjectFull: Phosphorus analysis
        Type: general
      – SubjectFull: Water Pollutants, Chemical analysis
        Type: general
    Titles:
      – TitleFull: Sediment phosphorus legacy and internal loading delay lake recovery in Azorean volcanic lakes.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Martins G
      – PersonEntity:
          Name:
            NameFull: Castro R
      – PersonEntity:
          Name:
            NameFull: Malcata A
      – PersonEntity:
          Name:
            NameFull: Cymbron R
      – PersonEntity:
          Name:
            NameFull: Brito AG
      – PersonEntity:
          Name:
            NameFull: Peixoto L
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 11
              Text: 2026 Nov 01
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-electronic
              Value: 1096-0953
          Numbering:
            – Type: volume
              Value: 308
            – Type: issue
              Value: Pt 1
          Titles:
            – TitleFull: Environmental research
              Type: main
ResultId 1