July 17, 2024 Dataset Open Access

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

JSON-LD (schema.org) Export

{"@context":"https://schema.org/","@id":"http://doi.org/10.25592/uhhfdm.14727","@type":"Dataset","creator":[{"@id":"https://orcid.org/0009-0004-5488-2018","@type":"Person","affiliation":"Institute of Marine Ecosystem and Fishery Science, Universit\u00e4t Hamburg, Grosse Elbstrasse 133, 22767 Hamburg, Germany","name":"Biederbick, Johanna"},{"@id":"https://orcid.org/0000-0001-9161-6342","@type":"Person","affiliation":"Institute of Marine Ecosystem and Fishery Science, Universit\u00e4t Hamburg, Grosse Elbstrasse 133, 22767 Hamburg, Germany","name":"M\u00f6llmann, Christian"},{"@id":"https://orcid.org/0009-0006-8226-9063","@type":"Person","affiliation":"Institute of Marine Ecosystem and Fishery Science, Universit\u00e4t Hamburg, Grosse Elbstrasse 133, 22767 Hamburg, Germany","name":"Hauten, Elena"},{"@id":"https://orcid.org/0009-0004-3663-5718","@type":"Person","affiliation":"Helmholtz-Centre Hereon, Institute of Carbon Cycles, Max-Planck-Stra\u00dfe 1, 21502 Geesthacht, Germany","name":"Russnak, Vanessa"},{"@id":"https://orcid.org/0000-0002-5517-496X","@type":"Person","affiliation":"Institute for Geology, Universit\u00e4t Hamburg, Bundesstra\u00dfe 55, 20146 Hamburg, Germany","name":"Lahajnar, Niko"},{"@type":"Person","affiliation":"GEOMAR Helmholtz Centre for Ocean Research Kiel, Wischhofstra\u00dfe 1-3, 24148 Kiel, Germany","name":"Hansen, Thomas"},{"@id":"https://orcid.org/0000-0002-4660-6919","@type":"Person","affiliation":"GEOMAR Helmholtz Centre for Ocean Research Kiel, Wischhofstra\u00dfe 1-3, 24148 Kiel, Germany","name":"Dierking, Jan"},{"@id":"https://orcid.org/0000-0002-0561-9617","@type":"Person","affiliation":"Institute of Marine Ecosystem and Fishery Science, Universit\u00e4t Hamburg, Grosse Elbstrasse 133, 22767 Hamburg, Germany","name":"Koppelmann, Rolf"}],"datePublished":"2024-07-17","description":"<p>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 (&delta;<sup>13</sup>C and &delta;<sup>15</sup>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 &delta;<sup>13</sup>C values of POM (-29.2 to -23.0 &permil;) indicated a mixture of riverine, terrestrial and coastal carbon sources used by most taxa for their diet. <em>Eurytemora affinis </em>(-34.0 to -23.3 &permil;) and <em>Mesopodopsis slabberi </em>(-22.2 to -20.0 &permil;) exhibited a broader range in &delta;<sup>13</sup>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 &delta;<sup>15</sup>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.</p>","distribution":[{"@type":"DataDownload","contentUrl":"https://www.fdr.uni-hamburg.de/api/files/729f30d7-c2ae-461e-89e9-02ffe2e79d97/1_zooplankton_SI data_Elbe estuary.csv","encodingFormat":"csv"},{"@type":"DataDownload","contentUrl":"https://www.fdr.uni-hamburg.de/api/files/729f30d7-c2ae-461e-89e9-02ffe2e79d97/2_abiotic data_Elbe estuary.csv","encodingFormat":"csv"},{"@type":"DataDownload","contentUrl":"https://www.fdr.uni-hamburg.de/api/files/729f30d7-c2ae-461e-89e9-02ffe2e79d97/README_Data_specification.pdf","encodingFormat":"pdf"}],"identifier":"http://doi.org/10.25592/uhhfdm.14727","inLanguage":{"@type":"Language","alternateName":"eng","name":"English"},"keywords":["Elbe estuary","Estuarine zooplankton","Trophodynamics","Stable isotopes","Allochthonous and autochthonous carbon sources","Selective feeding"],"license":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Spatial and Temporal Patterns of Zooplankton Trophic Interactions and Carbon Sources in the Eutrophic Elbe Estuary (Germany)","url":"https://www.fdr.uni-hamburg.de/record/14727","version":"1.0"}