Nitrogen uptake rates and f-ratios in the Equatorial and Southern Indian Ocean
We report data on nitrate, ammonium and urea uptake rates from the Equatorial and Southern Indian Oceans. Productivity (0.81–2.23 mmol N m–2 d–1) over the Equatorial Indian Ocean was low, but the f-ratio (0.13–0.45) was relatively high. In the Southern Indian Ocean total N-uptake rate varied from 1....
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ftmoes:oai:moeseprints.incois.gov.in:1969 2023-05-15T13:34:17+02:00 Nitrogen uptake rates and f-ratios in the Equatorial and Southern Indian Ocean Prakash, S Ramesh, R Sheshshayee, MS Mohan, R Sudhakar, M 2015-01-25 application/pdf http://moeseprints.incois.gov.in/1969/ http://moeseprints.incois.gov.in/1969/1/Nitrogen%20uptake.pdf http://www.currentscience.ac.in/php/cissue.php en eng Indian Academy of Sciences http://moeseprints.incois.gov.in/1969/1/Nitrogen%20uptake.pdf Prakash, S and Ramesh, R and Sheshshayee, MS and Mohan, R and Sudhakar, M (2015) Nitrogen uptake rates and f-ratios in the Equatorial and Southern Indian Ocean. Current Sciences, 108 (2). pp. 239-245. oceanography Article PeerReviewed 2015 ftmoes 2022-01-12T07:33:37Z We report data on nitrate, ammonium and urea uptake rates from the Equatorial and Southern Indian Oceans. Productivity (0.81–2.23 mmol N m–2 d–1) over the Equatorial Indian Ocean was low, but the f-ratio (0.13–0.45) was relatively high. In the Southern Indian Ocean total N-uptake rate varied from 1.7 to 12.3 mmol Nm–2 d–1; it was higher in the Antarctic coast (69S) and lower over most of the Southern Ocean, the lowest being at 58S. The f-ratio also showed significant spatial variation, but was higher compared to values at the Equatorial Indian Ocean. The mean f-ratio in the Southern Indian Ocean was 0.50. The nitrate-specific uptake rates and f-ratios appear to have increased significantly in the recent past relative to earlier estimates. While productivity in the Southern Ocean is comparable to that in the Equatorial Indian Ocean, higher f-ratios in the former underscore its importance in the uptake of CO2 Article in Journal/Newspaper Antarc* Antarctic Southern Ocean Ministry of Earth Sciences, Government of India: Open Access Digital Repository Antarctic Indian Southern Ocean The Antarctic |
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Open Polar |
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Ministry of Earth Sciences, Government of India: Open Access Digital Repository |
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ftmoes |
language |
English |
topic |
oceanography |
spellingShingle |
oceanography Prakash, S Ramesh, R Sheshshayee, MS Mohan, R Sudhakar, M Nitrogen uptake rates and f-ratios in the Equatorial and Southern Indian Ocean |
topic_facet |
oceanography |
description |
We report data on nitrate, ammonium and urea uptake rates from the Equatorial and Southern Indian Oceans. Productivity (0.81–2.23 mmol N m–2 d–1) over the Equatorial Indian Ocean was low, but the f-ratio (0.13–0.45) was relatively high. In the Southern Indian Ocean total N-uptake rate varied from 1.7 to 12.3 mmol Nm–2 d–1; it was higher in the Antarctic coast (69S) and lower over most of the Southern Ocean, the lowest being at 58S. The f-ratio also showed significant spatial variation, but was higher compared to values at the Equatorial Indian Ocean. The mean f-ratio in the Southern Indian Ocean was 0.50. The nitrate-specific uptake rates and f-ratios appear to have increased significantly in the recent past relative to earlier estimates. While productivity in the Southern Ocean is comparable to that in the Equatorial Indian Ocean, higher f-ratios in the former underscore its importance in the uptake of CO2 |
format |
Article in Journal/Newspaper |
author |
Prakash, S Ramesh, R Sheshshayee, MS Mohan, R Sudhakar, M |
author_facet |
Prakash, S Ramesh, R Sheshshayee, MS Mohan, R Sudhakar, M |
author_sort |
Prakash, S |
title |
Nitrogen uptake rates and f-ratios in the Equatorial and Southern Indian Ocean |
title_short |
Nitrogen uptake rates and f-ratios in the Equatorial and Southern Indian Ocean |
title_full |
Nitrogen uptake rates and f-ratios in the Equatorial and Southern Indian Ocean |
title_fullStr |
Nitrogen uptake rates and f-ratios in the Equatorial and Southern Indian Ocean |
title_full_unstemmed |
Nitrogen uptake rates and f-ratios in the Equatorial and Southern Indian Ocean |
title_sort |
nitrogen uptake rates and f-ratios in the equatorial and southern indian ocean |
publisher |
Indian Academy of Sciences |
publishDate |
2015 |
url |
http://moeseprints.incois.gov.in/1969/ http://moeseprints.incois.gov.in/1969/1/Nitrogen%20uptake.pdf http://www.currentscience.ac.in/php/cissue.php |
geographic |
Antarctic Indian Southern Ocean The Antarctic |
geographic_facet |
Antarctic Indian Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_relation |
http://moeseprints.incois.gov.in/1969/1/Nitrogen%20uptake.pdf Prakash, S and Ramesh, R and Sheshshayee, MS and Mohan, R and Sudhakar, M (2015) Nitrogen uptake rates and f-ratios in the Equatorial and Southern Indian Ocean. Current Sciences, 108 (2). pp. 239-245. |
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1766051334764625920 |