Dietary polyunsaturated fatty acid supply improves Daphnia performance at fluctuating temperatures, simulating diel vertical migration

Lade...
Vorschaubild
Dateien
Zu diesem Dokument gibt es keine Dateien.
Datum
2019
Herausgeber:innen
Kontakt
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
URI (zitierfähiger Link)
DOI (zitierfähiger Link)
ArXiv-ID
Internationale Patentnummer
Angaben zur Forschungsförderung
Projekt
Open Access-Veröffentlichung
Sammlungen
Core Facility der Universität Konstanz
Gesperrt bis
Titel in einer weiteren Sprache
Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published
Erschienen in
Freshwater Biology. 2019, 64(10), pp. 1859-1866. ISSN 0046-5070. eISSN 1365-2427. Available under: doi: 10.1111/fwb.13377
Zusammenfassung
  1. Diel vertical migration (DVM) is a common predator avoidance strategy of zooplankton. Migration to deeper water layers during the day to escape visually hunting predators is most likely to require physiological adaptations to periodically changing temperatures. Polyunsaturated fatty acids (PUFA) play crucial roles in membrane temperature acclimation. Exposure to cold temperatures typically results in an increase in the relative abundance of PUFA in cell membranes and PUFA requirements of Daphnia increase with decreasing temperatures.

    2. To assess the role of dietary PUFA in coping with temperature fluctuations experienced during DVM, we reared Daphnia magna at either constantly warm or fluctuating temperatures, simulating DVM both with and without dietary PUFA supplementation.

    3. We show that the well‐known positive effect of dietary eicosapentaenoic acid supplementation on offspring production and population growth rates of D. magna is more pronounced at alternating temperatures than at constantly warm temperatures. Exposure to alternating temperatures caused modification in body PUFA concentrations and, consequently, increased lipid peroxidation. However, detrimental effects of lipid peroxidation were not evident.

    4. Our data demonstrate that the capacity to cope with the distinct temperature fluctuations experienced during DVM increases with dietary eicosapentaenoic acid supplementation, suggesting that an adequate dietary PUFA supply is crucial especially for migrating Daphnia populations. A dietary deficiency in long‐chain PUFA may thus severely constrain predator evasion, potentially resulting in increased mortality and cascading effects on lower trophic levels.
Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
570 Biowissenschaften, Biologie
Schlagwörter
diurnal vertical migration, eicosapentaenoic acid, food quality, lipid peroxidation, predator avoidance
Konferenz
Rezension
undefined / . - undefined, undefined
Forschungsvorhaben
Organisationseinheiten
Zeitschriftenheft
Datensätze
Zitieren
ISO 690ISANTA-NAVARRO, Jana, Matthias FROMHERZ, Michelle HELMER, Bettina ZEIS, Anke SCHWARZENBERGER, Dominik MARTIN-CREUZBURG, 2019. Dietary polyunsaturated fatty acid supply improves Daphnia performance at fluctuating temperatures, simulating diel vertical migration. In: Freshwater Biology. 2019, 64(10), pp. 1859-1866. ISSN 0046-5070. eISSN 1365-2427. Available under: doi: 10.1111/fwb.13377
BibTex
@article{IsantaNavarro2019-10Dieta-46709,
  year={2019},
  doi={10.1111/fwb.13377},
  title={Dietary polyunsaturated fatty acid supply improves Daphnia performance at fluctuating temperatures, simulating diel vertical migration},
  number={10},
  volume={64},
  issn={0046-5070},
  journal={Freshwater Biology},
  pages={1859--1866},
  author={Isanta-Navarro, Jana and Fromherz, Matthias and Helmer, Michelle and Zeis, Bettina and Schwarzenberger, Anke and Martin-Creuzburg, Dominik}
}
RDF
<rdf:RDF
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:bibo="http://purl.org/ontology/bibo/"
    xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#"
    xmlns:foaf="http://xmlns.com/foaf/0.1/"
    xmlns:void="http://rdfs.org/ns/void#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > 
  <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/46709">
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2019-08-21T11:28:43Z</dcterms:available>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/46709"/>
    <dc:creator>Isanta-Navarro, Jana</dc:creator>
    <dc:contributor>Schwarzenberger, Anke</dc:contributor>
    <dc:contributor>Isanta-Navarro, Jana</dc:contributor>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2019-08-21T11:28:43Z</dc:date>
    <dc:contributor>Helmer, Michelle</dc:contributor>
    <dc:creator>Zeis, Bettina</dc:creator>
    <dc:language>eng</dc:language>
    <dc:creator>Fromherz, Matthias</dc:creator>
    <dc:contributor>Martin-Creuzburg, Dominik</dc:contributor>
    <dc:contributor>Fromherz, Matthias</dc:contributor>
    <dcterms:title>Dietary polyunsaturated fatty acid supply improves Daphnia performance at fluctuating temperatures, simulating diel vertical migration</dcterms:title>
    <dc:creator>Martin-Creuzburg, Dominik</dc:creator>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/28"/>
    <dc:creator>Schwarzenberger, Anke</dc:creator>
    <dcterms:abstract xml:lang="eng">1. Diel vertical migration (DVM) is a common predator avoidance strategy of zooplankton. Migration to deeper water layers during the day to escape visually hunting predators is most likely to require physiological adaptations to periodically changing temperatures. Polyunsaturated fatty acids (PUFA) play crucial roles in membrane temperature acclimation. Exposure to cold temperatures typically results in an increase in the relative abundance of PUFA in cell membranes and PUFA requirements of Daphnia increase with decreasing temperatures.&lt;br /&gt;&lt;br /&gt;2. To assess the role of dietary PUFA in coping with temperature fluctuations experienced during DVM, we reared Daphnia magna at either constantly warm or fluctuating temperatures, simulating DVM both with and without dietary PUFA supplementation.&lt;br /&gt;&lt;br /&gt;3. We show that the well‐known positive effect of dietary eicosapentaenoic acid supplementation on offspring production and population growth rates of D. magna is more pronounced at alternating temperatures than at constantly warm temperatures. Exposure to alternating temperatures caused modification in body PUFA concentrations and, consequently, increased lipid peroxidation. However, detrimental effects of lipid peroxidation were not evident.&lt;br /&gt;&lt;br /&gt;4. Our data demonstrate that the capacity to cope with the distinct temperature fluctuations experienced during DVM increases with dietary eicosapentaenoic acid supplementation, suggesting that an adequate dietary PUFA supply is crucial especially for migrating Daphnia populations. A dietary deficiency in long‐chain PUFA may thus severely constrain predator evasion, potentially resulting in increased mortality and cascading effects on lower trophic levels.</dcterms:abstract>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dcterms:issued>2019-10</dcterms:issued>
    <dc:creator>Helmer, Michelle</dc:creator>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dc:contributor>Zeis, Bettina</dc:contributor>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/28"/>
  </rdf:Description>
</rdf:RDF>
Interner Vermerk
xmlui.Submission.submit.DescribeStep.inputForms.label.kops_note_fromSubmitter
Kontakt
URL der Originalveröffentl.
Prüfdatum der URL
Prüfungsdatum der Dissertation
Finanzierungsart
Kommentar zur Publikation
Allianzlizenz
Corresponding Authors der Uni Konstanz vorhanden
Internationale Co-Autor:innen
Universitätsbibliographie
Ja
Begutachtet
Ja
Diese Publikation teilen