July 17, 2024 Dataset Open Access

Biederbick, Johanna; Möllmann, Christian; Hauten, Elena; Russnak, Vanessa; Lahajnar, Niko; Hansen, Thomas; Dierking, Jan; Koppelmann, Rolf

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  <identifier identifierType="DOI">10.25592/uhhfdm.14727</identifier>
  <creators>
    <creator>
      <creatorName>Biederbick, Johanna</creatorName>
      <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="http://orcid.org/">0009-0004-5488-2018</nameIdentifier>
      <affiliation>Institute of Marine Ecosystem and Fishery Science, Universität Hamburg, Grosse Elbstrasse 133, 22767 Hamburg, Germany</affiliation>
    </creator>
    <creator>
      <creatorName>Möllmann, Christian</creatorName>
      <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="http://orcid.org/">0000-0001-9161-6342</nameIdentifier>
      <affiliation>Institute of Marine Ecosystem and Fishery Science, Universität Hamburg, Grosse Elbstrasse 133, 22767 Hamburg, Germany</affiliation>
    </creator>
    <creator>
      <creatorName>Hauten, Elena</creatorName>
      <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="http://orcid.org/">0009-0006-8226-9063</nameIdentifier>
      <affiliation>Institute of Marine Ecosystem and Fishery Science, Universität Hamburg, Grosse Elbstrasse 133, 22767 Hamburg, Germany</affiliation>
    </creator>
    <creator>
      <creatorName>Russnak, Vanessa</creatorName>
      <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="http://orcid.org/">0009-0004-3663-5718</nameIdentifier>
      <affiliation>Helmholtz-Centre Hereon, Institute of Carbon Cycles, Max-Planck-Straße 1, 21502 Geesthacht, Germany</affiliation>
    </creator>
    <creator>
      <creatorName>Lahajnar, Niko</creatorName>
      <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="http://orcid.org/">0000-0002-5517-496X</nameIdentifier>
      <affiliation>Institute for Geology, Universität Hamburg, Bundesstraße 55, 20146 Hamburg, Germany</affiliation>
    </creator>
    <creator>
      <creatorName>Hansen, Thomas</creatorName>
      <affiliation>GEOMAR Helmholtz Centre for Ocean Research Kiel, Wischhofstraße 1-3, 24148 Kiel, Germany</affiliation>
    </creator>
    <creator>
      <creatorName>Dierking, Jan</creatorName>
      <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="http://orcid.org/">0000-0002-4660-6919</nameIdentifier>
      <affiliation>GEOMAR Helmholtz Centre for Ocean Research Kiel, Wischhofstraße 1-3, 24148 Kiel, Germany</affiliation>
    </creator>
    <creator>
      <creatorName>Koppelmann, Rolf</creatorName>
      <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="http://orcid.org/">0000-0002-0561-9617</nameIdentifier>
      <affiliation>Institute of Marine Ecosystem and Fishery Science, Universität Hamburg, Grosse Elbstrasse 133, 22767 Hamburg, Germany</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Spatial and Temporal Patterns of Zooplankton Trophic Interactions and Carbon Sources in the Eutrophic Elbe Estuary (Germany)</title>
  </titles>
  <publisher>Universität Hamburg</publisher>
  <publicationYear>2024</publicationYear>
  <subjects>
    <subject>Elbe estuary</subject>
    <subject>Estuarine zooplankton</subject>
    <subject>Trophodynamics</subject>
    <subject>Stable isotopes</subject>
    <subject>Allochthonous and autochthonous carbon sources</subject>
    <subject>Selective feeding</subject>
  </subjects>
  <dates>
    <date dateType="Issued">2024-07-17</date>
  </dates>
  <language>en</language>
  <resourceType resourceTypeGeneral="Dataset"/>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://www.fdr.uni-hamburg.de/record/14727</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsPartOf">10.25592/uhhfdm.14726</relatedIdentifier>
  </relatedIdentifiers>
  <version>1.0</version>
  <rightsList>
    <rights rightsURI="https://creativecommons.org/licenses/by/4.0/legalcode">Creative Commons Attribution 4.0 International</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">&lt;p&gt;Zooplankton in estuaries encounter complex physical and biogeochemical processes that affect the quantity, quality and origin of their food sources. The knowledge about how zooplankton deal with highly variable organic matter sources is sparse. Here, we investigated the spatial and temporal patterns of zooplankton trophic dynamics and carbon sources in the intensively dredged, eutrophic Elbe estuary. For this purpose, we applied elemental and stable isotope analysis (&amp;delta;&lt;sup&gt;13&lt;/sup&gt;C and &amp;delta;&lt;sup&gt;15&lt;/sup&gt;N) on particulate organic matter (POM) and dominant meso- and macrozooplankton species including ichthyoplankton from five stations along the entire salinity gradient of the estuary in 2022. The &amp;delta;&lt;sup&gt;13&lt;/sup&gt;C values of POM (-29.2 to -23.0 &amp;permil;) indicated a mixture of riverine, terrestrial and coastal carbon sources used by most taxa for their diet. &lt;em&gt;Eurytemora affinis &lt;/em&gt;(-34.0 to -23.3 &amp;permil;) and &lt;em&gt;Mesopodopsis slabberi &lt;/em&gt;(-22.2 to -20.0 &amp;permil;) exhibited a broader range in &amp;delta;&lt;sup&gt;13&lt;/sup&gt;C than POM, suggesting selective feeding on single POM components depending on the season. In winter and autumn, under high suspended matter loads and limited availability of high-quality autochthonous phytoplankton, zooplankton showed increased tendency for carnivory (higher &amp;delta;&lt;sup&gt;15&lt;/sup&gt;N values). Our study revealed a high trophic plasticity of estuarine Elbe zooplankton to buffer hydrological related alterations in their food source by dietary niche partitioning and a flexible switch in their feeding behaviour.&lt;/p&gt;</description>
  </descriptions>
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