HR: 16:00h
AN: OS14A-01 INVITED    [Abstracts]
TI: Coccolithophore Response to CO2 Increase and Related Ecological Changes
AU: * Ziveri, P
EM: patrizia.ziveri@uab.es
AF: Institute of Environmental Science and Technology (ICTA), Universitat Autonoma de Barcelona, Edifici CN, UAB Campus, Bellaterra, 08193, Spain
AU: * Ziveri, P
EM: patrizia.ziveri@uab.es
AF: Department of Paleoclimatology and Geomorphology, FALW, Vrije Universiteit Amsterdam, de Boelelaan 1085, Amsterdam, HV 1081, Netherlands
AB: Changes in ocean chemistry due to anthropogenic CO2 emissions affect marine life, nutrient cycles and biocalcification. Ocean acidification has been identified as a major consequence of rising atmospheric CO2 levels. This makes understanding the response of calcareous plankton, and other effects of global change, an urgent challenge. There have been controversial results from culture experiments and field observations, on the impact of CO2 increase on coccolithophore calcification and ecology. The objective of this presentation is to report the state-of-the-art on the impact of ocean acidification on coccolithophores and possible consequences on their biogeography and ecology. Results will also be reported from a workshop sponsored by the European Science Foundation (Euroclimate Program) and PAGES on Atmopheric CO2, ocean acidification and ecological changes in planktonic calcifying organisms. A wide range of experts contributed to that workshop, from the cellular and genetic to the ecological and global carbon cycle levels. Questions include how the predicted CO2 increase and acidification is likely to affect coccolithophores, what the possible secondary consequences may be, and what research is needed to allow robust predictions for the future.
DE: 0400 BIOGEOSCIENCES
DE: 1600 GLOBAL CHANGE
SC: Ocean Sciences [OS]
MN: 2007 Fall Meeting