Počet záznamů: 1
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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SYSNO ASEP 0555170 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Stratification strength and light climate explain variation in Chlorophyll a at the continental scale in a European multilake survey in a heatwave summer Tvůrce(i) Fránková, Markéta (BU-J) RID, ORCID Celkový počet autorů 193 Zdroj.dok. Limnology and Oceanography. - : Wiley - ISSN 0024-3590
Roč. 66, č. 12 (2021), s. 4314-4333Poč.str. 20 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova chlorophyll-a ; climatic zones ; nutrients Vědní obor RIV DA - Hydrologie a limnologie Obor OECD Marine biology, freshwater biology, limnology Způsob publikování Open access Institucionální podpora BU-J - RVO:67985939 UT WOS 000712815100001 EID SCOPUS 85118408152 DOI 10.1002/lno.11963 Anotace 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 degrees 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. Pracoviště Botanický ústav Kontakt Martina Bartošová, martina.bartosova@ibot.cas.cz, ibot@ibot.cas.cz, Tel.: 271 015 242 ; Marie Jakšová, marie.jaksova@ibot.cas.cz, Tel.: 384 721 156-8 Rok sběru 2022 Elektronická adresa https://doi.org/10.1002/lno.11963
Počet záznamů: 1