@article{Donis2021-12Strat-55646,
  year={2021},
  doi={10.1002/lno.11963},
  title={Stratification strength and light climate explain variation in chlorophyll a at the continental scale in a European multilake survey in a heatwave summer},
  number={12},
  volume={66},
  issn={0024-3590},
  journal={Limnology and Oceanography},
  pages={4314--4333},
  author={Donis, Daphne and Mantzouki, Evanthia and McGinnis, Daniel F. and Vachon, Dominic and Gallego, Irene and Grossart, Hans-Peter and de Senerpont Domis, Lisette N. and Teurlincx, Sven and Seelen, Laura and Rothhaupt, Karl-Otto}
}

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    <dc:creator>Vachon, Dominic</dc:creator>
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    <dc:creator>Rothhaupt, Karl-Otto</dc:creator>
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    <dcterms:title>Stratification strength and light climate explain variation in chlorophyll a at the continental scale in a European multilake survey in a heatwave summer</dcterms:title>
    <dc:contributor>Mantzouki, Evanthia</dc:contributor>
    <dc:contributor>McGinnis, Daniel F.</dc:contributor>
    <dc:creator>de Senerpont Domis, Lisette N.</dc:creator>
    <dc:contributor>Teurlincx, Sven</dc:contributor>
    <dcterms:issued>2021-12</dcterms:issued>
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    <dc:contributor>Seelen, Laura</dc:contributor>
    <dc:contributor>Grossart, Hans-Peter</dc:contributor>
    <dc:creator>Teurlincx, Sven</dc:creator>
    <dc:creator>Seelen, Laura</dc:creator>
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    <dc:contributor>de Senerpont Domis, Lisette N.</dc:contributor>
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    <dc:creator>Mantzouki, Evanthia</dc:creator>
    <dc:language>eng</dc:language>
    <dcterms:abstract xml:lang="eng">To determine the drivers of phytoplankton biomass, we collected standardized morphometric, physical, and biological data in 230 lakes across the Mediterranean, Continental, and Boreal climatic zones of the European continent. Multilinear regression models tested on this snapshot of mostly eutrophic lakes (median total phosphorus [TP] = 0.06 and total nitrogen [TN] = 0.7 mg L−1), and its subsets (2 depth types and 3 climatic zones), show that light climate and stratification strength were the most significant explanatory variables for chlorophyll a (Chl a) variance. TN was a significant predictor for phytoplankton biomass for shallow and continental lakes, while TP never appeared as an explanatory variable, suggesting that under high TP, light, which partially controls stratification strength, becomes limiting for phytoplankton development. Mediterranean lakes were the warmest yet most weakly stratified and had significantly less Chl a than Boreal lakes, where the temperature anomaly from the long-term average, during a summer heatwave was the highest (+4°C) and showed a significant, exponential relationship with stratification strength. This European survey represents a summer snapshot of phytoplankton biomass and its drivers, and lends support that light and stratification metrics, which are both affected by climate change, are better predictors for phytoplankton biomass in nutrient-rich lakes than nutrient concentrations and surface temperature.</dcterms:abstract>
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