HR: 0800h
AN: OS51C-1306 [Abstracts]
TI: The Effect of Elevated CO$_{2}$ on the Growth Rate of Phytoplankton - Mesocosm Experiment
AU: * Kim, J
EM: jamyung@postech.ac.kr
AF: SEE/Pohang University of Science and Technology, San 31, Hyoja-dong, Nam-gu, Pohang, 790-784
Korea, Republic of
AU: Lee, K
EM: kitack@postech.ac.kr
AF: SEE/Pohang University of Science and Technology, San 31, Hyoja-dong, Nam-gu, Pohang, 790-784
Korea, Republic of
AU: Koo, C
EM: sf6@postech.ac.kr
AF: SEE/Pohang University of Science and Technology, San 31, Hyoja-dong, Nam-gu, Pohang, 790-784
Korea, Republic of
AU: Shin, K
EM: ksshin@kordi.re.kr
AF: KORDI South Sea Institute, 391, Jangmok, geoje, 656-830
Korea, Republic of
AU: Lee, H
EM: co2@postech.ac.kr
AF: SEE/Pohang University of Science and Technology, San 31, Hyoja-dong, Nam-gu, Pohang, 790-784
Korea, Republic of
AB:
Recent independent lines of evidence suggest that higher CO$_{2}$ concentration in surface seawater would accelerate growth
of phytoplankton. A 20-day mesocosm experiment was carried out in June 2004 in the southern coastal region of Korea to
investigate the influence of elevated CO$_{2}$ concentration on the mono diatom species, {\it Skeletonema costatum}. The
CO$_{2}$ concentration of a control net was being left as an ambient condition (approximately 400ppm), while that of the
other treatment was being maintained approximately 900ppm. The elevated production of Particulate Organic Carbon (POC), which
was generated from increasing a primary production, was not discernable in this experiment. Therefore, a new study has been
carried out with some modifications to observe possible increase in POC and Dissolved Organic Carbon (DOC) productions. The
new experiment includes 5 mesocosms with different CO$_{2}$ concentrations ranging from 280ppm to 900ppm. During the entire
duration of this experiment, CO$_{2}$ concentration in each treatment has remained constant.
DE: 4805 Biogeochemical cycles (1615)
DE: 4806 Carbon cycling
DE: 4853 Photosynthesis
DE: 4855 Plankton
SC: Ocean Sciences [OS]
MN: 2004 AGU Fall Meeting