Stratification strength and light climate explain variation in chlorophyll a at the continental scale in a European multilake survey in a heatwave summer

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dc.authorid0000-0002-0982-727Xen_US
dc.contributor.authorDonis D.
dc.contributor.authorMantzouki E.
dc.contributor.authorMcGinnis D.F.
dc.contributor.authorVachon D.
dc.contributor.authorGallego I.
dc.contributor.authorYılmaz, Mete
dc.date.accessioned2022-01-11T05:56:28Z
dc.date.available2022-01-11T05:56:28Z
dc.date.issued2021en_US
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Biyomühendislik Bölümüen_US
dc.description.abstractTo 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.en_US
dc.identifier.doi10.1002/lno.11963en_US
dc.identifier.endpage4333en_US
dc.identifier.issn19395590
dc.identifier.issue12en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage4314en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12885/1788
dc.identifier.volume66en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorYılmaz, Mete
dc.language.isoenen_US
dc.publisherJohn Wiley and Sons Incen_US
dc.relation.ispartofLimnology and Oceanographyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.titleStratification strength and light climate explain variation in chlorophyll a at the continental scale in a European multilake survey in a heatwave summeren_US
dc.typeArticleen_US

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