Latitudinal distribution of nitrogen isotopic composition in suspended particulate organic matter in tropical/subtropical seas
Fujian Natural Science Foundation [2009J06026]; Special foundation for Science and Technology [2008FY110100]; COMRA [DYXM115-02-4-06, DYXM115-01-3-04]; Chinese IPY Research Program Natural nitrogen isotopic composition (delta N-15) of suspended particulate organic matter (POM) and nitrogen fixation...
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ftxiamenuniv:oai:dspace.xmu.edu.cn:2288/87843 2023-05-15T16:55:52+02:00 Latitudinal distribution of nitrogen isotopic composition in suspended particulate organic matter in tropical/subtropical seas Zhang, Run Chen, Min Ma, Qiang Cao, Jianping Qiu, Yusheng 张润 陈敏 2011 http://dspace.xmu.edu.cn/handle/2288/87843 en_US eng ISOT ENVIRON HEALT S ISOTOPES IN ENVIRONMENTAL AND HEALTH STUDIES, 2011,47(4):489-497 WOS:000299724000010 http://dspace.xmu.edu.cn/handle/2288/87843 http://dx.doi.org/10.1080/10256016.2011.622442 SOUTH CHINA SEA SUBTROPICAL NORTH PACIFIC ATLANTIC-OCEAN N-2 FIXATION MARINE CYANOBACTERIUM TRICHODESMIUM SPP DISSOLVED IRON NITRATE AVAILABILITY DELTA-N-15 Article 2011 ftxiamenuniv 2020-07-21T11:42:26Z Fujian Natural Science Foundation [2009J06026]; Special foundation for Science and Technology [2008FY110100]; COMRA [DYXM115-02-4-06, DYXM115-01-3-04]; Chinese IPY Research Program Natural nitrogen isotopic composition (delta N-15) of suspended particulate organic matter (POM) and nitrogen fixation rates via N-15(2) assay were measured in surface waters along 120 degrees E from 30 degrees N to 30 degrees S in the Asian marginal seas (the East/South China Seas and the Sulu/Celebes/Java Seas) and the northeastern Indian Ocean in November-December 2005 and March 2006. The POM delta N-15 values ranged from -1.8 to 12.2 parts per thousand with an average of 3.6 parts per thousand and showed a decreasing trend towards the equator in both hemispheres. In parallel, the measured N-2 fixation rates showed an increase from the subtropical to the tropical seas. This implies that a higher contribution of N-15-depleted POM was derived from enhanced N-2 fixation. Water temperature and the stability of water column were partly responsible for the observed variations in nitrogen fixation. The large-scale spatial variations in suspended POM delta N-15 and N-2 fixation rates suggest that the suspended POM delta N-15 may be a potential indicator of nitrogen fixation in surface waters in tropical/subtropical seas. Article in Journal/Newspaper IPY Xiamen University Institutional Repository Pacific Indian |
institution |
Open Polar |
collection |
Xiamen University Institutional Repository |
op_collection_id |
ftxiamenuniv |
language |
English |
topic |
SOUTH CHINA SEA SUBTROPICAL NORTH PACIFIC ATLANTIC-OCEAN N-2 FIXATION MARINE CYANOBACTERIUM TRICHODESMIUM SPP DISSOLVED IRON NITRATE AVAILABILITY DELTA-N-15 |
spellingShingle |
SOUTH CHINA SEA SUBTROPICAL NORTH PACIFIC ATLANTIC-OCEAN N-2 FIXATION MARINE CYANOBACTERIUM TRICHODESMIUM SPP DISSOLVED IRON NITRATE AVAILABILITY DELTA-N-15 Zhang, Run Chen, Min Ma, Qiang Cao, Jianping Qiu, Yusheng 张润 陈敏 Latitudinal distribution of nitrogen isotopic composition in suspended particulate organic matter in tropical/subtropical seas |
topic_facet |
SOUTH CHINA SEA SUBTROPICAL NORTH PACIFIC ATLANTIC-OCEAN N-2 FIXATION MARINE CYANOBACTERIUM TRICHODESMIUM SPP DISSOLVED IRON NITRATE AVAILABILITY DELTA-N-15 |
description |
Fujian Natural Science Foundation [2009J06026]; Special foundation for Science and Technology [2008FY110100]; COMRA [DYXM115-02-4-06, DYXM115-01-3-04]; Chinese IPY Research Program Natural nitrogen isotopic composition (delta N-15) of suspended particulate organic matter (POM) and nitrogen fixation rates via N-15(2) assay were measured in surface waters along 120 degrees E from 30 degrees N to 30 degrees S in the Asian marginal seas (the East/South China Seas and the Sulu/Celebes/Java Seas) and the northeastern Indian Ocean in November-December 2005 and March 2006. The POM delta N-15 values ranged from -1.8 to 12.2 parts per thousand with an average of 3.6 parts per thousand and showed a decreasing trend towards the equator in both hemispheres. In parallel, the measured N-2 fixation rates showed an increase from the subtropical to the tropical seas. This implies that a higher contribution of N-15-depleted POM was derived from enhanced N-2 fixation. Water temperature and the stability of water column were partly responsible for the observed variations in nitrogen fixation. The large-scale spatial variations in suspended POM delta N-15 and N-2 fixation rates suggest that the suspended POM delta N-15 may be a potential indicator of nitrogen fixation in surface waters in tropical/subtropical seas. |
format |
Article in Journal/Newspaper |
author |
Zhang, Run Chen, Min Ma, Qiang Cao, Jianping Qiu, Yusheng 张润 陈敏 |
author_facet |
Zhang, Run Chen, Min Ma, Qiang Cao, Jianping Qiu, Yusheng 张润 陈敏 |
author_sort |
Zhang, Run |
title |
Latitudinal distribution of nitrogen isotopic composition in suspended particulate organic matter in tropical/subtropical seas |
title_short |
Latitudinal distribution of nitrogen isotopic composition in suspended particulate organic matter in tropical/subtropical seas |
title_full |
Latitudinal distribution of nitrogen isotopic composition in suspended particulate organic matter in tropical/subtropical seas |
title_fullStr |
Latitudinal distribution of nitrogen isotopic composition in suspended particulate organic matter in tropical/subtropical seas |
title_full_unstemmed |
Latitudinal distribution of nitrogen isotopic composition in suspended particulate organic matter in tropical/subtropical seas |
title_sort |
latitudinal distribution of nitrogen isotopic composition in suspended particulate organic matter in tropical/subtropical seas |
publisher |
ISOT ENVIRON HEALT S |
publishDate |
2011 |
url |
http://dspace.xmu.edu.cn/handle/2288/87843 |
geographic |
Pacific Indian |
geographic_facet |
Pacific Indian |
genre |
IPY |
genre_facet |
IPY |
op_source |
http://dx.doi.org/10.1080/10256016.2011.622442 |
op_relation |
ISOTOPES IN ENVIRONMENTAL AND HEALTH STUDIES, 2011,47(4):489-497 WOS:000299724000010 http://dspace.xmu.edu.cn/handle/2288/87843 |
_version_ |
1766046906787561472 |