@article{Fehlinger2022-10Expor-59321,
  year={2022},
  doi={10.1007/s10750-022-05040-2},
  title={Export of dietary lipids via emergent insects from eutrophic fishponds},
  issn={0018-8158},
  journal={Hydrobiologia},
  author={Fehlinger, Lena and Mathieu-Resuge, Margaux and Pilecky, Matthias and Parmar, Tarn Preet and Twining, Cornelia W. and Martin-Creuzburg, Dominik and Kainz, Martin J.}
}

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    <dc:creator>Martin-Creuzburg, Dominik</dc:creator>
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    <dc:contributor>Kainz, Martin J.</dc:contributor>
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    <dc:contributor>Mathieu-Resuge, Margaux</dc:contributor>
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    <dc:creator>Twining, Cornelia W.</dc:creator>
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    <dc:rights>Attribution 4.0 International</dc:rights>
    <dc:creator>Mathieu-Resuge, Margaux</dc:creator>
    <dcterms:title>Export of dietary lipids via emergent insects from eutrophic fishponds</dcterms:title>
    <dc:creator>Parmar, Tarn Preet</dc:creator>
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    <dc:contributor>Pilecky, Matthias</dc:contributor>
    <dc:creator>Pilecky, Matthias</dc:creator>
    <dc:creator>Kainz, Martin J.</dc:creator>
    <dc:contributor>Fehlinger, Lena</dc:contributor>
    <dc:contributor>Martin-Creuzburg, Dominik</dc:contributor>
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    <dcterms:issued>2022-10</dcterms:issued>
    <dc:language>eng</dc:language>
    <dcterms:abstract xml:lang="eng">Fishponds, despite being globally abundant, have mainly been considered as food production sites and have received little scientific attention in terms of their ecological contributions to the surrounding terrestrial environment. Emergent insects from fishponds may be important contributors of lipids and essential fatty acids to terrestrial ecosystems. In this field study, we investigated nine eutrophic fishponds in Austria from June to September 2020 to examine how Chlorophyll-a concentrations affect the biomass of emergent insect taxa (i.e., quantity of dietary subsidies; n = 108) and their total lipid and long-chain polyunsaturated fatty acid content (LC-PUFA, i.e., quality of dietary subsidies; n = 94). Chironomidae and Chaoboridae were the most abundant emergent insect taxa, followed by Trichoptera, Ephemeroptera, and Odonata. A total of 1068 kg of emergent insect dry mass were exported from these ponds (65.3 hectares). Chironomidae alone exported 103 kg of total lipids and 9.4 kg of omega-3 PUFA. Increasing Chl-a concentrations were associated with decreasing biomass export and a decrease in total lipid and LC-PUFA export via emergent Chironomidae. The PUFA composition of emergent insect taxa differed significantly from dietary algae, suggesting selective PUFA retention by insects. The export of insect biomass from these eutrophic carp ponds was higher than that previously reported from oligotrophic lakes. However, lower biomass and diversity are exported from the fishponds compared to managed ponds. Nonetheless, our data suggest that fishponds provide crucial ecosystem services to terrestrial consumers by contributing essential dietary nutrients to consumer diets via emergent insects.</dcterms:abstract>
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    <dc:contributor>Parmar, Tarn Preet</dc:contributor>
    <dc:contributor>Twining, Cornelia W.</dc:contributor>
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