Stable isotope compositions of arctic copepods in the Greenland Sea in winter (scientific note)
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概要
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Natural abundances of stable isotopes (δ^<13>C and δ^<15>N) were measured in copepods collected in the Greenland Sea in January 1999. Standing stocks of zooplankton dominated by copepods in the upper 200m varied among 12 stations and marked zooplankton increases at 4 stations (>10 mg-dry weight m^<-3>) were observed around the marginal ice zone, although surface chlorophyll a concentrations at all stations were nearly zero. The isotopic compositions of copepods varied in the ranges of -22.2‰∿-20.6‰ in δ^<13>C and of 8.2‰-12.2‰ in δ^<15>N, which were comparable with those collected in other polar waters. The enrichment factors (difference in δ^<15>N between copepods and POM) of about 3.2 suggest possible linkage between winter copepods and winter POM without algal populations.
- 国立極地研究所の論文
著者
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Sasaki Hiroshi
Department of Biological Technology, Faculty of Science and Engineering,Senshu University of Ishinom
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Sato Megumi
Department Of Biology Nihon University School Of Dentistry
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Sato Megumi
Department Of Biotechnology Senshu University Of Ishinomaki
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Kawai Daisuke
Department of Biotechnology, Senshu University of Ishinomaki
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Sasaki Hiroshi
Department Of Biotechnology Senshu University Of Ishinomaki
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Kawai Daisuke
Department Of Biotechnology Senshu University Of Ishinomaki
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Sasaki Hiroshi
Department Of Agricultural Chemistry Faculty Of Agriculture Hokkaido University
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