Title Plankton metabolism in the Greenland Sea during the polar summer of 2007
Author Regaudie-de-Gioux, A.; Duarte, C.M.
Author Affil Regaudie-de-Gioux, A., CSIC, Instituto Mediterraneo de Estudios Avanzados, Esporles, Spain. Other: Aarhus University, Denmark
Source Impacts of climate warming on polar marine and freshwater ecosystems, edited by S. Agustí, M.K. Sejr and C.M. Duarte. Polar Biology, 33(12), p.1651-1660. Publisher: Springer-Verlag, Berlin, Germany. ISSN: 0722- 4060
Publication Date Dec. 2010
Notes In English. Supplemental information/data is available in the online version of this article. 58 refs. GeoRef Acc. No: 308844. CRREL Acc. No: 65006247
Index Terms ecology; plankton; Norwegian Sea; Southern Ocean; Arctic Ocean; Greenland Current; metabolism; productivity; seasonal variations
Abstract The polar summer metabolism of the planktonic communities in the Greenland Sea was surveyed in July 2007. Planktonic metabolism showed great variability across the studied area, with on average, higher metabolic rates in the Fram Strait-Svalbard region than along the Greenland Current. A significant fraction (47%) of the planktonic communities in the Fram Strait-Svalbard region were net heterotrophic, suggesting that increased respiration rates with further warming may lead the planktonic communities at this region to act as net CO2 sources. The thresholds gross primary production for metabolic balance (i.e., gross primary production=community respiration) was much higher in the European sector of the Arctic than reported for the Southern Ocean, suggesting that heterotrophic metabolism is more prevalent in the European sector of the Arctic than in the Southern Ocean, indicating high allochthonous inputs in the Arctic region.
URL http://hdl.handle.net/10.1007/s00300-010-0792-1
Publication Type journal article
Record ID 91242