0 199 1, by the American Society of Limnology and Oceanography, Inc. Effect of iron on productivity and size distribution of Antarctic phytoplankton
In shipboard experiments, addition of Fe to samples from Antarctic shelf waters or from deep waters close to the shelf break did not have any detectable effect on phytoplankton populations. Fe addition to pelagic waters, however, increased Chl a concentrations by a factor of 4-7 times during l-2 wee...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.493.7566 2023-05-15T13:51:15+02:00 0 199 1, by the American Society of Limnology and Oceanography, Inc. Effect of iron on productivity and size distribution of Antarctic phytoplankton E. Walter Helbling Virginia Villafaae Osmund Holm-hansen The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.493.7566 http://www.aslo.org/lo/toc/vol_36/issue_8/1879.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.493.7566 http://www.aslo.org/lo/toc/vol_36/issue_8/1879.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.aslo.org/lo/toc/vol_36/issue_8/1879.pdf text ftciteseerx 2016-01-08T08:39:44Z In shipboard experiments, addition of Fe to samples from Antarctic shelf waters or from deep waters close to the shelf break did not have any detectable effect on phytoplankton populations. Fe addition to pelagic waters, however, increased Chl a concentrations by a factor of 4-7 times during l-2 weeks of incubation and also resulted in a shift from a nanoplankton-dominated population to one dominated by microplankton. If these shipboard experimental results are ex-trapolated to in situ results following enrichment of Antarctic pelagic waters with Fe, there may be some mitigation of the greenhouse effect caused by elevated CO, concentrations in the atmo-sphere. Not only would the rate of primary production increase, but also the percentage of primary production that is exported to deep water might be increased because of Fe favoring the growth of microplankton.-The combination of high inorganic nu-trient concentrations and low phytoplank-ton biomass and low rate of primary pro-duction in pelagic Antarctic waters has been Text Antarc* Antarctic Unknown Antarctic |
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English |
description |
In shipboard experiments, addition of Fe to samples from Antarctic shelf waters or from deep waters close to the shelf break did not have any detectable effect on phytoplankton populations. Fe addition to pelagic waters, however, increased Chl a concentrations by a factor of 4-7 times during l-2 weeks of incubation and also resulted in a shift from a nanoplankton-dominated population to one dominated by microplankton. If these shipboard experimental results are ex-trapolated to in situ results following enrichment of Antarctic pelagic waters with Fe, there may be some mitigation of the greenhouse effect caused by elevated CO, concentrations in the atmo-sphere. Not only would the rate of primary production increase, but also the percentage of primary production that is exported to deep water might be increased because of Fe favoring the growth of microplankton.-The combination of high inorganic nu-trient concentrations and low phytoplank-ton biomass and low rate of primary pro-duction in pelagic Antarctic waters has been |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
E. Walter Helbling Virginia Villafaae Osmund Holm-hansen |
spellingShingle |
E. Walter Helbling Virginia Villafaae Osmund Holm-hansen 0 199 1, by the American Society of Limnology and Oceanography, Inc. Effect of iron on productivity and size distribution of Antarctic phytoplankton |
author_facet |
E. Walter Helbling Virginia Villafaae Osmund Holm-hansen |
author_sort |
E. Walter Helbling |
title |
0 199 1, by the American Society of Limnology and Oceanography, Inc. Effect of iron on productivity and size distribution of Antarctic phytoplankton |
title_short |
0 199 1, by the American Society of Limnology and Oceanography, Inc. Effect of iron on productivity and size distribution of Antarctic phytoplankton |
title_full |
0 199 1, by the American Society of Limnology and Oceanography, Inc. Effect of iron on productivity and size distribution of Antarctic phytoplankton |
title_fullStr |
0 199 1, by the American Society of Limnology and Oceanography, Inc. Effect of iron on productivity and size distribution of Antarctic phytoplankton |
title_full_unstemmed |
0 199 1, by the American Society of Limnology and Oceanography, Inc. Effect of iron on productivity and size distribution of Antarctic phytoplankton |
title_sort |
0 199 1, by the american society of limnology and oceanography, inc. effect of iron on productivity and size distribution of antarctic phytoplankton |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.493.7566 http://www.aslo.org/lo/toc/vol_36/issue_8/1879.pdf |
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Antarctic |
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Antarctic |
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Antarc* Antarctic |
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Antarc* Antarctic |
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http://www.aslo.org/lo/toc/vol_36/issue_8/1879.pdf |
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http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.493.7566 http://www.aslo.org/lo/toc/vol_36/issue_8/1879.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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