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

2021; Wiley; Volume: 66; Issue: 12 Linguagem: Inglês

10.1002/lno.11963

1939-5604

Daphne Donis, Evanthia Mantzouki, Daniel F. McGinnis, Dominic Vachon, Irene Gallego, Hans‐Peter Grossart, Lisette N. de Senerpont Domis, Sven Teurlincx, Laura M.S. Seelen, Miquel Lürling, Yvon Verstijnen, Valentini Maliaka, Jérémy Fonvielle, P. Visser, Jolanda M. H. Verspagen, Maria van Herk, Maria G. Antoniou, Nikoletta Tsiarta, Valerie McCarthy, Victor C. Perello, Danielle Machado‐Vieira, Alinne Gurjão de Oliveira, Dubravka Špoljarić Maronić, Filip Stević, Tanja Žuna Pfeiffer, Itana Bokan Vucelić, Petar Žutinić, Marija Gligora Udovič, Anđelka Plenković‐Moraj, Luděk Bláha, Rodan Geriš, Markéta Fránková, Kirsten Christoffersen, Trine Perlt Warming, Tõnu Feldmann, Alo Laas, Kristel Panksep, Lea Tuvikene, Kersti Kangro, Judita Koreivienė, Jūratė Karosienė, Jūratė Kasperovičienė, Ksenija Savadova, Irma Vitonytė, Kerstin Häggqvist, Pauliina Salmi, Лаури Арвола, Karl O. Rothhaupt, Christos Avagianos, Triantafyllos Kaloudis, Spyros Gkelis, Manthos Panou, Theodoros M. Triantis, Sevasti‐Kiriaki Zervou, Anastasia Hiskia, Ulrike Obertegger, Adriano Boscaini, Giovanna Flaim, Nico Salmaso, Leonardo Cerasino, Sigrid Haande, Birger Skjelbred, Magdalena Grabowska, Maciej Karpowicz, Damian Chmura, Lidia Nawrocka, Justyna Kobos, Hanna Mazur‐Marzec, Pablo Alcaraz‐Párraga, Elżbieta Wilk‐Woźniak, Wojciech Krztoń, Edward Walusiak, Ilona Gągała, Joanna Mankiewicz‐Boczek, Magdalena Toporowska, Barbara Pawlik‐Skowrońska, Michał Niedźwiecki, Wojciech Pęczuła, Agnieszka Napiórkowska‐Krzebietke, Julita Dunalska, Justyna Sieńska, Daniel Szymański, Marek Kruk, Agnieszka Budzyńska, Ryszard Gołdyn, Anna Kozak, Joanna Rosińska, Elżbieta Szeląg‐Wasielewska, Piotr Domek, Natalia Jakubowska, Kinga Kwasiżur, Beata Messyasz, Aleksandra Pełechata, Mariusz Pełechaty, Mikołaj Kokociński, Beata Mądrecka, Iwona Kostrzewska‐Szlakowska, Magdalena Frąk, Agnieszka Bańkowska‐Sobczak, Michał Wasilewicz, Agnieszka Ochocka, Agnieszka Pasztaleniec, Iwona Jasser, Ana Maria Geraldes, Manel Leira, Vı́tor Vasconcelos, João Morais, Micaela Vale, Pedro M. Raposeiro, Vítor Gonçalves, Boris Aleksovski, Svetislav Krstić, Hana Nemova, Iveta Drastichova, Lucia Chomova, Špela Remec-Rekar, Tina Eleršek, Lars‐Anders Hansson, Pablo Urrutia‐Cordero, Andrea G. Bravo, Moritz Buck, William Colom, Kristiina Mustonen, Donald C. Pierson, Yang Yang, Jessica Richardson, Christine Edwards, Hannah Cromie, Jordi Delgado Martín, David Granado García, José Luis Cereijo-Arango, Joan Gomà, María del Carmen Trapote, Teresa Vegas‐Vilarrúbia, Biel Obrador, Ana García‐Murcia, Monserrat Real, Elvira Romans, Jordi Noguero‐Ribes, David Parreño Duque, Elísabeth Fernández‐Morán, Bárbara Úbeda, J. A. Gálvez, Núria Catalán, Carmen Pérez‐Martínez, Eloísa Ramos‐Rodríguez, Carmen Cillero Castro, Enrique Moreno‐Ostos, José María Blanco, Valeriano Rodrı́guez, Jorge Juan Montes‐Pérez, Roberto L. Palomino, Estela Rodríguez‐Pérez, Armand Hernández, Rafael Carballeira, Antonio Camacho, Antonio Picazo, Carlos Rochera, Anna C. Santamans, Carmen Ferriol, Susana Romo, Juan M. Soria, Arda Özen, Tünay Karan, Nilsun Demi̇r, Meryem Beklioğlu, Nur Filiz, Eti E. Levi, Uğur Işkın, Gizem Bezirci, Ülkü Nіhan Tavşanoğlu, Kemal Çelik, Koray Özhan, Nusret Karakaya, Mehmet Ali Turan Koçer, Mete Yılmaz, Faruk Maraşlıoğlu, Özden FAKIOĞLU, Elif Neyran Soylu, Meral Apaydın Yağcı, Şakir Çınar, Kadir Çapkın, Abdülkadir Yağcı, Mehmet Cesur, Fuat Bilgin, Cafer Bulut, Rahmi Uysal, Latife Köker, Reyhan Akçaalan, Meriç Albay, Mehmet Tahir, Korhan Özkan, Tuğba Ongun Sevi̇ndi̇k, Hatice Tunca, Burçin Önem, Hans W. Paerl, Cayelan C. Carey, Bastiaan W. Ibelings,

Aquatic Ecosystems and Biodiversity

Abstract 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.