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Phytoplankton production from melting ponds on Arctic sea ice

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Title
Phytoplankton production from melting ponds on Arctic sea ice
Other Titles
북극 해빙 위 융빙호수에서 식물플랑크톤의 생산력에 관한 연구
Authors
Sang H. Lee
Joo, Hyong-Min
Chang-Keun Kang
Terry E. Whitledge
Young Baek Son
Dean A. Stockwell
Keywords
Arctic; Phytoplankton production; Sea ice; melting pond
Issue Date
2012
Publisher
American
Citation
Sang H. Lee, et al. 2012. "Phytoplankton production from melting ponds on Arctic sea ice". JOURNAL OF GEOPHYSICAL RESEARCH, 117(C4): 4030-4040.
Abstract
Recently, the areal extent of melt ponds within sea ice has rapidly increased during the Arctic Ocean summer. However, the biological impacts of melt ponds on the Arctic marine ecosystem have rarely been studied. Carbon and nitrogen uptake rates of phytoplankton were measured at 26 different melt ponds in 2005 and 2008, using a 13C-15N dual stable isotope tracer technique. Generally, the open ponds had relatively higher nutrients than closed ponds, but the nutrient concentrations in the open ponds were within a range similar to those in surrounding surface seawaters. Chlorophyll a (Chl a) concentrations in melt ponds ranged from 0.1 to 2.9 mg Chl a m3 with a mean of 0.6 mg Chl a m3 (SD = 0.8 mg Chl a m3) in the Canada Basin in 2005, whereas the range of the Chl a concentrations was from 0.1 to 0.3 mg Chl a m3 with a mean of 0.2 mg Chl a m3 (SD = 0.1 mg Chl a m3) in the central Arctic Ocean in 2008. The average annual carbon production in sea ice melt ponds was 0.67 g C m3 (SD = 1.03 g C m3) in the Arctic Ocean. Based on this study, recent annual carbon production of all melt ponds was roughlyestimated to be approximately 2.6 Tg C, which is less than 1% of the total production in the Arctic Ocean.ake rates of phytoplankton were measured at 26 different melt ponds in 2005 and 2008, using a 13C-15N dual stable isotope tracer technique. Generally, the open ponds had relatively higher nutrients than closed ponds, but the nutrient concentrations in the open ponds were within a range similar to those in surrounding surface seawaters. Chlorophyll a (Chl a) concentrations in melt ponds ranged from 0.1 to 2.9 mg Chl a m3 with a mean of 0.6 mg Chl a m3 (SD = 0.8 mg Chl a m3) in the Canada Basin in 2005, whereas the range of the Chl a concentrations was from 0.1 to 0.3 mg Chl a m3 with a mean of 0.2 mg Chl a m3 (SD = 0.1 mg Chl a m3) in the central Arctic Ocean in 2008. The average annual carbon production in sea ice melt ponds was 0.67
URI
http://repository.kopri.re.kr/handle/201206/7236
DOI
http://dx.doi.org/10.1029/2011JC007717
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