Currently, summer time reaches earlier in the most part of Europe and this could affect all the aquatic organisms. To study the resistance, resilience and recovery of plankton communities to heatwaves occurring in late spring/early summer the “Summer in Spring” mesocosm experiment was proposed and led by F. Vidussi and B. Mostajir at CNRS-MARBEC MEDIMEER mesocosm facility in Sète, in the southern France in May-June 2019.
During 10 days, as a heat wave simulation, several pelagic in situ mesocosms immerged in the natural water were heated continuously 3°C more than other mesocosms acted as the control following the in situ natural water temperature variation. Thereafter, during additional 10 days the heating was stopped and all mesocosms followed the natural water temperature variation. All mesocosms were daily sampled during 20 days of the experience and several sets of variety of incubations were performed to study processes and the dynamic of different plankton communities and their responses to the heat wave.
In total, 18 researchers and trainees from Greece (3), Finland (3), Italy (4), Germany (2), Cyprus (1) and Argentina (5) were supported by AQUACOSM Transnational Access to join the local team for this mesocosm experience and studying different plankton communities for a total of 442 persons/days.
The picture below shows the 18 TA participants, 12 researchers from CNRS-MARBEC MEDIMEER local team and 2 researchers from IGB who collaborated with the local team and TA group.