Temperature control and carbonate system manipulation in a land-based mesocosm experiment

Warming and acidification of the oceans are two major drivers of climate change. Mesocosm facilities are a powerful tool for studying the impact of warming and acidification on planktonic ecosystems. This study presents one of the few existing systems for controlling temperature in outdoor mesocosm enclosures. Two temperature targets (25, 28°C) were maintained with very weak variability during the 14 days duration of the experiment. Targeted conditions in the acidified treatments were achieved after additions of CO2-saturated and were then let to evolve till the end of the experiment. The temporal evolution of pH and pCO2 showed relatively small fluctuations, while AT values gradually increased during the experimental period following more or less the salinity variations.

Krasakopoulou E., Frangoulis C., Giannoudi L., Souvermezoglou E., Androni A., Leontidi M., Piperakis G., Piperakis M.& Pitta P., 2015. Temperature control and carbonate system manipulation in a land-based mesocosm experiment. Conference paper, 11th Panhellenic Symposium of Oceanography & Fisheries, Mytilene, Lesvos, Greece. Paper.


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