Under ongoing climate change and increasing anthropogenic activity, which continuously challenge ecosystem resilience, an in-depth understanding of ecological processes is urgently needed. Lakes, as providers of numerous ecosystem services, face multiple stressors that threaten their functioning. Harmful cyanobacterial blooms are a persistent problem resulting from nutrient pollution and climate-change induced stressors, like poor transparency, increased water temperature and enhanced stratification. Consistency in data collection and analysis methods is necessary to achieve fully comparable datasets and for statistical validity, avoiding issues linked to disparate data sources. The European Multi Lake Survey (EMLS) in summer 2015 was an initiative among scientists from 27 countries to collect and analyse lake physical, chemical and biological variables in a fully standardized manner. This database includes in-situ lake variables along with nutrient, pigment and cyanotoxin data of 369 lakes in Europe, which were centrally analysed in dedicated laboratories. Publishing the EMLS methods and dataset might inspire similar initiatives to study across large geographic areas that will contribute to better understanding lake responses in a changing environment.

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Přidružená datová sada

doi: 10.3390/toxins10040156 PubMed

Zobrazit více v PubMed

Mantzouki E., et al. . 2018. Environmental Data Initiative. https://doi.org/10.6073/pasta/dabc352040fa58284f78883fa9debe37 DOI

Carey C. C. et al. Occurrence and toxicity of the cyanobacterium Gloeotrichia echinulata in low-nutrient lakes in the northeastern United States. Aquat. Ecol. 46, 395–409 (2012).

Huber V., Wagner C., Gerten D. & Adrian R. To bloom or not to bloom: contrasting responses of cyanobacteria to recent heat waves explained by critical thresholds of abiotic drivers. Oecologia 169, 245–256 (2012). PubMed

Sinha R. L. et al. Increased incidence of Cylindrospermopsis raciborskii in temperate zones - is climate change responsible? Water Res 46, 1408–1409 (2012). PubMed

Schindler D. W. & Vallentyne J. R. In The algal bowl, overfertilization of the world's freshwaters and estuaries, (University of Alberta Press, Earthscan, 2008).

Codd G. A., Meriluoto J. & Metcalf J. S. In Handbook of Cyanobacterial Monitoring and Cyanotoxin Analysis, (John Wiley & Sons, Ltd, 2017).

Dodds W. et al. Eutrophication of U.S. freshwaters: analysis of potential economic damages. Environ. Sci. Technol. 43, 12–19 (2009). PubMed

Steffensen, In Cyanobacterial Harmful Algal Blooms: State of the Science and Research Needs (ed. Kenneth Hudnell 855–865 (Spinger Science, 2008).

Elliott J. A. Is the future blue-green? A review of the current model predictions of how climate change could affect pelagic freshwater cyanobacteria. Water Res 46, 1364–1371 (2012). PubMed

Kosten S. et al. Warmer climates boost cyanobacterial dominance in shallow lakes. Global Change Biol 18, 118–126 (2012).

Paerl H. W. & Huisman J. Blooms like it hot. Climate 320, 57–58 (2008). PubMed

Schwefel R., Gaudard A., Wuest A. & Bouffard D. Effects of climate change on deepwater oxygen and winter mixing in a deep lake (Lake Geneva): Comparing observational findings and modeling. Water Resour. Res. 52, 8811–8826 (2016).

Reynolds C. S. In The ecology of phytoplankton. (Cambridge University Press, 2006).

Livingstone D. M. Impact of secular climate change on the thermal structure of a large temperate central European lake. Climatic Change 57, 205–225 (2003).

Lurling M., van Oosterhout F. & Faassen E. Eutrophication and warming boost cyanobacterial biomass and microcystins. Toxins 9, 64 (2017). PubMed PMC

Moss B. Allied attack: climate change and eutrophication. Inland Waters 1, 101–105 (2011).

Rigosi A., Carey C. C., Ibelings B. W. & Brookes J. D. The interaction between climate warming and eutrophication to promote cyanobacteria is dependent on trophic state and varies among taxa. Limnol. Oceanogr. 59, 99–114 (2014).

Salmaso N. et al. Influence of atmospheric modes of variability on the limnological characteristics of large lakes south of the Alps: a new emerging paradigm. Hydrobiologia 731, 31–48 (2013).

Dai A., Trenberth K. E. & Qian T. T. A global dataset of Palmer Drought Severity Index for 1870-2002: Relationship with soil moisture and effects of surface warming. Journal of Hydrometeorology 5, 1117–1130 (2004).

Ibelings B. W., Vonk M., Los H. F. J., Van der Molen D. T. & Mood W. M. Fuzzy modeling of cyanobacterial surface waterblooms: Validation with NOAA-AVHRR satellite images. Ecol. Appl. 13, 1456–1472 (2003).

Gerten D. & Adrian R. Effects of climate warming, North Atlantic Oscillation, and El Nino-Southern Oscillation on thermal conditions and plankton dynamics in northern hemispheric lakes. ScientificWorldJournal 2, 586–606 (2002). PubMed PMC

Pickett S. In Long-Term Studies in Ecology: Approaches and Alternatives. Vol. 5. Space-for-time substitution as an alternative to long-term studies, (Springer New York, 1989).

Sommer U. et al. Beyond the Plankton Ecology Group (PEG) model: mechanisms driving plankton succession. Annu. Rev. Ecol. Evol. Syst. 43, 429–448 (2012).

Mantzouki E. et al. Temperature effects explain continental scale distribution of cyanobacterial toxins. Toxins 10, 156 (2018). PubMed PMC

COST. European Cooperation in Science & Technology : Cost Actions– http://www.cost.eu/COST_Actions (2017).

CYANOCOST. COST Action ES1105: Cyanobacterial blooms and toxins in water resources: Occurrence, impacts and management http://www.cyanocost.com/ (2014).

Meriluoto J. et al. Toxic cyanobacteria and cyanotoxins in European waters – recent progress achieved through the CYANOCOST Action and challenges for further research. AIOL 8 (2017).

NETLAKE. COST Action ES1201: Networking Lake Observatories in Europe https://www.dkit.ie/ga/node/14015 (2016).

Winslow L. A., Read J. S., Woolway R. I., Brentrup J. A., Leach T. H. & Zwart. J. A. GLEON/rLakeAnalyzer: New algorithms and bugfixes. Zenodo https://zenodo.org/record/1003169#.WzYwh9Uza70 (2016).

NEN. Water: photometric determination of the content of dissolved orthophosphate and the total content of phosphorous compounds by continuous flow analysis. Report No. NEN 6663 Netherlands Normalization Institute, (1986).

NEN. Water: photometric determination of the content of ammonium nitrogen and the sum of the contents of ammoniacal and organically bound nitrogen according to Kjeldahl by continuous flow analysis. Report No. NEN 6646 (Netherlands Normalization Institute, 1990).

NEN. Bepaling van het stikstofgehalte in de vorm van nitriet en in de vorm vannitraat en de som van beide met doorstroomanalyse (CFA en FIA) en spectrometrische detectie. Report No. NEN-EN-ISO 13395. Netherlands Normalization Institute, (1997).

Van der Staay G. W. M., Brouwer A., Baard R. L. & van Mourik F. Separation of photosystems I and II from the oxychlorobacterium (prochlorophyte) Prochlorothrix hollandica and association of Chlb binding antennae with PS II. Biochim. Biophys. Acta. 1102, 220–228 (1992).

Helsel D. R. Fabricating data: How substituting values for nondetects can ruin results, and what can be done about it. Chemosphere 65, 2434–2439 (2006). PubMed

Faassen E. J. & Lurling M. Occurrence of the microcystins MC-LW and MC-LF in Dutch surface waters and their contribution to total microcystin toxicity. Mar. Drugs 11, 2643–2654 (2013). PubMed PMC

Lurling M. & Faassen E. J. Dog poisonings associated with a Microcystis aeruginosa bloom in the Netherlands. Toxins 5, 556–567 (2013). PubMed PMC

Fastner J. et al. Fatal neurotoxicosis in dogs associated with tychoplanktic, anatoxin-a producing Tychonema sp. in mesotrophic lake Tegel, Berlin. Toxins 10, 60 (2018). PubMed PMC

R Foundation for Statistical Computing, Vienna, Austria https://www.R-project.org/ (2016).