Mesocosm experiment on warming and acidification effects in 2012: Microzooplankton data ...

• Main Authors: Horn, Henriette G, Boersma, Maarten, Garzke, Jessica, Löder, Martin G J, Sommer, Ulrich, Aberle, Nicole
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2016
• Subjects: Biological Impacts of Ocean Acidification BIOACID; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.864951; https://doi.pangaea.de/10.1594/PANGAEA.864951

Global warming and ocean acidification are among the most important stressors for aquatic ecosystems in the future. To investigate their direct and indirect effects on a near-natural plankton community, a multiple-stressor approach is needed. Hence, we set up mesocosms in a full-factorial design to study the effects of both warming and high CO2 on a Baltic Sea autumn plankton community, concentrating on the impacts on microzooplankton (MZP). MZP abundance, biomass, and species composition were analysed over the course of the experiment. We observed that warming led to a reduced time-lag between the phytoplankton bloom and an MZP biomass maximum. MZP showed a significantly higher growth rate and an earlier biomass peak in the warm treatments while the biomass maximum was not affected. Increased pCO2 did not result in any significant effects on MZP biomass, growth rate, or species composition irrespective of the temperature, nor did we observe any significant interactions between CO2 and temperature. We ... : Supplement to: Horn, Henriette G; Boersma, Maarten; Garzke, Jessica; Löder, Martin G J; Sommer, Ulrich; Aberle, Nicole (2016): Effects of high CO2 and warming on a Baltic Sea microzooplankton community. ICES Journal of Marine Science, 73, 772-782 ...