Impact of ocean acidification and warming on respiration, heart rate and acid-base status of Mytilus edulis from the North Sea ...

• Main Authors: Zittier, Zora M C, Bock, Christian, Lannig, Gisela, Pörtner, Hans-Otto
• Format: Dataset
• Language: English
• Published: PANGAEA 2015
• Subjects: Experimental treatment; Temperature, water; Salinity; Individual code; Respiration rate, oxygen, per dry mass; Heart rate; Mytilus edulis, haemolymph, partial pressure of oxygen; Mytilus edulis, haemolymph, partial pressure of carbon dioxide; Mytilus edulis, haemolymph, pH; Mytilus edulis, haemolymph, carbon dioxide; Mytilus edulis, haemolymph, bicarbonate ion; Mytilus edulis, extrapallial fluid partial pressure of oxygen; Mytilus edulis, extrapallial fluid partial pressure of carbon dioxide; Mytilus edulis, extrapallial fluid pH; Mytilus edulis, extrapallial fluid carbon dioxide; Oxygen optode, flow-through respirometry; Plethysmograph; Blood gas analyser, Eschweiler, MT 33; Gas chromatography; Calculated after Heisler 1986; European Project on Ocean Acidification EPOCA; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.855165; https://doi.pangaea.de/10.1594/PANGAEA.855165

Anthropogenic climate change confronts marine organisms with rapid trends of concomitant warming and CO2 induced ocean acidification. The survival and distribution of species partly depend on their ability to exploit their physiological plasticity during acclimatization. Therefore, in laboratory studies the effects of simulated future ocean acidification on thermal tolerance, energy metabolism and acid-base regulation capacity of the North Sea population of the blue mussel Mytilus edulis were examined. Following one month of pre-acclimation to 10 °C and control CO2 levels, mussels were exposed for two weeks to control and projected oceanic CO2 levels (390, 750 and 1120 µatm) before being subjected to a stepwise warming protocol between 10 °C and 31 °C (+ 3 °C each night). Oxygen consumption and heart rates, anaerobic metabolite levels and haemolymph acid-base status were determined at each temperature. CO2 exposure left oxygen consumption rate unchanged at acclimation temperature but caused a somewhat ... : Supplement to: Zittier, Zora M C; Bock, Christian; Lannig, Gisela; Pörtner, Hans-Otto (2015): Impact of ocean acidification on thermal tolerance and acid–base regulation of Mytilus edulis (L.) from the North Sea. Journal of Experimental Marine Biology and Ecology, 473, 16-25 ...