The Impact of Climate Change on Lakes in Central Europe

Planktothrix rubescens: a perennial presence and toxicity in Lake Sapanca

“…In this case, 2006 and 2007 had the lowest rainfall, at 651 and 678 mm, respectively, of all years between 1997 and 2010. Annual precipitation over northern Europe has increased by between 10% and 40% in the last century while the Mediterranean basin has experienced reductions of up to 20% (Dokulil et al, 2010). Whereas heavy rainfalls tend to transport more nutrients from catchment to lakes resulting in more or sometimes less primary production, depending on the lake retention time, lower precipitation will affect the retention time of the lakes and influence the composition of phytoplankton via reduction of flushing effects.…”

Inter-annual climate variability and zooplankton: applying teleconnection indices to two deep subalpine lakes in Italy

“…In this work, we will use the temperatures measured in the 0-50 m water layer, which coincides with the layer where zooplankton was traditionally sampled for long-term monitoring of deep lakes (de Bernardi et al, 1990;Salmaso and NaselliFlores, 1999). The choice of this layer was also justified because our interest was directed towards biological response to common climate drivers, rather than to direct impact of climate on water temperature, traditionally investigated by using lake surface water temperatures (LSWTs; Livingstone and Dokulil, 2001;Dokulil et al, 2010). Soluble reactive phosphorus (SRP) at spring overturn was determined following standard methods (Mosello et al, 1997;Salmaso and Cerasino, 2012), on samples collected in the epilimnetic layers (0-20 m).…”

“…The average increase in the observed annual mean temperature across Europe for the last century was 0.8°C (Dokulil et al, 2010). Temperature increase for the year 2035 is estimated as 2.0-3.5°C, depending on the scenario and whether or not the damping by aerosols is considered (Kromp-Kolb, 2001).…”

“…Successive research on meteoclimatic drivers of change in zooplankton have been mainly addressed to indices devel-N o n -c o m m e r c i a l u s e o n l y oped for North America and Central Europe, particularly the North Atlantic Oscillation (NAO) index, calculated for the winter period (Hurrell et al, 2003). Comparison of response patterns to the winter (December-February) NAO DJF index, however, resulted in weak or inconsistent results when applied to lakes in the southern side of the Alps (Salmaso, 2005;Manca and DeMott, 2009;Dokulil et al, 2010). The Alps are indeed a barrier to the mass movement of air and cause the sharp climatic division between Atlantic, Continental and Mediterranean influences.…”

Kapitel 2: Der Einfluss des Klimawandels auf die Hydrosphäre

“…Extremereignisse, wie etwa besonders warme Jahre, greifen ganz besonders in das empfindliche Ökosystem See ein (Jankowski et al, 2006). Eine Zusammenfassung und Übersicht über die Auswirkungen und Folgen einer Veränderung des Klimas auf Seen in Mitteleuropa geben Dokulil et al (2010).…”