Effect of high level iron enrichment on potential nitrogen uptake by marine plankton in the Southern Ocean
Iron fertilization of the Southern Ocean is believed to counter the increasing CO 2 concentration in the atmosphere and the consequent global warming. Though a number of large scale iron enrichment experiments have been done in the recent past in different parts of the world ocean, little effort has...
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ftindianacasci:oai:repository.ias.ac.in:70267 2023-05-15T18:24:24+02:00 Effect of high level iron enrichment on potential nitrogen uptake by marine plankton in the Southern Ocean Prakash, Satya Ramesh, R. Sheshshayee, M. S. Mohan, Rahul Sudhakar, M. 2010-11-25 application/pdf http://repository.ias.ac.in/70267/ http://repository.ias.ac.in/70267/1/27-pub.pdf http://www.ias.ac.in/currsci/25nov2010/1400.pdf unknown Current Science Association http://repository.ias.ac.in/70267/1/27-pub.pdf Prakash, Satya Ramesh, R. Sheshshayee, M. S. Mohan, Rahul Sudhakar, M. (2010) Effect of high level iron enrichment on potential nitrogen uptake by marine plankton in the Southern Ocean Current Science, 99 (10). pp. 1400-1404. ISSN 0011-3891 QE Geology Article PeerReviewed 2010 ftindianacasci 2013-01-20T12:42:16Z Iron fertilization of the Southern Ocean is believed to counter the increasing CO 2 concentration in the atmosphere and the consequent global warming. Though a number of large scale iron enrichment experiments have been done in the recent past in different parts of the world ocean, little effort has been made to understand the effect of iron enrichment on nitrogen uptake rates and f-ratios. Here we assess the effect of iron addition on N-uptake rates and f-ratio in the Indian sector of the Southern Ocean. This study shows, in contrast to the earlier belief, that iron addition enhances not only nitrate uptake (~ 3×) but it causes a significant increase in ammonium (~ 2×) and urea (~ 3×) uptakes as well. Also, since iron enrichment caused significant increase in the uptake of all N-substrates, its effect on f-ratio was insignificant. Article in Journal/Newspaper Southern Ocean Indian Academy of Sciences: Publication of Fellows Indian Southern Ocean |
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Open Polar |
collection |
Indian Academy of Sciences: Publication of Fellows |
op_collection_id |
ftindianacasci |
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unknown |
topic |
QE Geology |
spellingShingle |
QE Geology Prakash, Satya Ramesh, R. Sheshshayee, M. S. Mohan, Rahul Sudhakar, M. Effect of high level iron enrichment on potential nitrogen uptake by marine plankton in the Southern Ocean |
topic_facet |
QE Geology |
description |
Iron fertilization of the Southern Ocean is believed to counter the increasing CO 2 concentration in the atmosphere and the consequent global warming. Though a number of large scale iron enrichment experiments have been done in the recent past in different parts of the world ocean, little effort has been made to understand the effect of iron enrichment on nitrogen uptake rates and f-ratios. Here we assess the effect of iron addition on N-uptake rates and f-ratio in the Indian sector of the Southern Ocean. This study shows, in contrast to the earlier belief, that iron addition enhances not only nitrate uptake (~ 3×) but it causes a significant increase in ammonium (~ 2×) and urea (~ 3×) uptakes as well. Also, since iron enrichment caused significant increase in the uptake of all N-substrates, its effect on f-ratio was insignificant. |
format |
Article in Journal/Newspaper |
author |
Prakash, Satya Ramesh, R. Sheshshayee, M. S. Mohan, Rahul Sudhakar, M. |
author_facet |
Prakash, Satya Ramesh, R. Sheshshayee, M. S. Mohan, Rahul Sudhakar, M. |
author_sort |
Prakash, Satya |
title |
Effect of high level iron enrichment on potential nitrogen uptake by marine plankton in the Southern Ocean |
title_short |
Effect of high level iron enrichment on potential nitrogen uptake by marine plankton in the Southern Ocean |
title_full |
Effect of high level iron enrichment on potential nitrogen uptake by marine plankton in the Southern Ocean |
title_fullStr |
Effect of high level iron enrichment on potential nitrogen uptake by marine plankton in the Southern Ocean |
title_full_unstemmed |
Effect of high level iron enrichment on potential nitrogen uptake by marine plankton in the Southern Ocean |
title_sort |
effect of high level iron enrichment on potential nitrogen uptake by marine plankton in the southern ocean |
publisher |
Current Science Association |
publishDate |
2010 |
url |
http://repository.ias.ac.in/70267/ http://repository.ias.ac.in/70267/1/27-pub.pdf http://www.ias.ac.in/currsci/25nov2010/1400.pdf |
geographic |
Indian Southern Ocean |
geographic_facet |
Indian Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
http://repository.ias.ac.in/70267/1/27-pub.pdf Prakash, Satya Ramesh, R. Sheshshayee, M. S. Mohan, Rahul Sudhakar, M. (2010) Effect of high level iron enrichment on potential nitrogen uptake by marine plankton in the Southern Ocean Current Science, 99 (10). pp. 1400-1404. ISSN 0011-3891 |
_version_ |
1766204895115870208 |