Iron limits primary productivity during spring bloom development in the central North Atlantic
We present in situ biophysical measurements and bioassay experiments that demonstrate iron limitation of primary productivity during the spring bloom in the central North Atlantic. Mass balance calculations indicate that nitrate drawdown is iron (Fe)-limited and that aeolian Fe supply to this region...
Published in: | Global Change Biology |
---|---|
Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
2006
|
Subjects: | |
Online Access: | https://eprints.soton.ac.uk/38083/ |
id |
ftsouthampton:oai:eprints.soton.ac.uk:38083 |
---|---|
record_format |
openpolar |
spelling |
ftsouthampton:oai:eprints.soton.ac.uk:38083 2023-07-30T04:05:11+02:00 Iron limits primary productivity during spring bloom development in the central North Atlantic Moore, C. Mark Mills, Matthew M. Milne, Angela Langlois, Rebecca Achterberg, Eric P. Lochte, Karin Geider, Richard J. La Roche, Julie 2006-04 https://eprints.soton.ac.uk/38083/ unknown Moore, C. Mark, Mills, Matthew M., Milne, Angela, Langlois, Rebecca, Achterberg, Eric P., Lochte, Karin, Geider, Richard J. and La Roche, Julie (2006) Iron limits primary productivity during spring bloom development in the central North Atlantic. Global Change Biology, 12 (4), 626-634. (doi:10.1111/j.1365-2486.2006.01122.x <http://dx.doi.org/10.1111/j.1365-2486.2006.01122.x>). Article PeerReviewed 2006 ftsouthampton https://doi.org/10.1111/j.1365-2486.2006.01122.x 2023-07-09T20:47:19Z We present in situ biophysical measurements and bioassay experiments that demonstrate iron limitation of primary productivity during the spring bloom in the central North Atlantic. Mass balance calculations indicate that nitrate drawdown is iron (Fe)-limited and that aeolian Fe supply to this region cannot support maximal phytoplankton growth during the bloom. Using a simple simulation model, we show that relief of Fe limitation during the spring bloom can increase nitrate drawdown and, hence, new primary production, by 70%. We conclude that the episodic nature of iron supplied by dust deposition is an important factor controlling the dynamics of the spring bloom. From this, we hypothesize that variability in the timing and magnitude of the spring bloom in response to aeolian Fe supply will affect carbon drawdown and food web dynamics in the central North Atlantic. Article in Journal/Newspaper North Atlantic University of Southampton: e-Prints Soton Global Change Biology 12 4 626 634 |
institution |
Open Polar |
collection |
University of Southampton: e-Prints Soton |
op_collection_id |
ftsouthampton |
language |
unknown |
description |
We present in situ biophysical measurements and bioassay experiments that demonstrate iron limitation of primary productivity during the spring bloom in the central North Atlantic. Mass balance calculations indicate that nitrate drawdown is iron (Fe)-limited and that aeolian Fe supply to this region cannot support maximal phytoplankton growth during the bloom. Using a simple simulation model, we show that relief of Fe limitation during the spring bloom can increase nitrate drawdown and, hence, new primary production, by 70%. We conclude that the episodic nature of iron supplied by dust deposition is an important factor controlling the dynamics of the spring bloom. From this, we hypothesize that variability in the timing and magnitude of the spring bloom in response to aeolian Fe supply will affect carbon drawdown and food web dynamics in the central North Atlantic. |
format |
Article in Journal/Newspaper |
author |
Moore, C. Mark Mills, Matthew M. Milne, Angela Langlois, Rebecca Achterberg, Eric P. Lochte, Karin Geider, Richard J. La Roche, Julie |
spellingShingle |
Moore, C. Mark Mills, Matthew M. Milne, Angela Langlois, Rebecca Achterberg, Eric P. Lochte, Karin Geider, Richard J. La Roche, Julie Iron limits primary productivity during spring bloom development in the central North Atlantic |
author_facet |
Moore, C. Mark Mills, Matthew M. Milne, Angela Langlois, Rebecca Achterberg, Eric P. Lochte, Karin Geider, Richard J. La Roche, Julie |
author_sort |
Moore, C. Mark |
title |
Iron limits primary productivity during spring bloom development in the central North Atlantic |
title_short |
Iron limits primary productivity during spring bloom development in the central North Atlantic |
title_full |
Iron limits primary productivity during spring bloom development in the central North Atlantic |
title_fullStr |
Iron limits primary productivity during spring bloom development in the central North Atlantic |
title_full_unstemmed |
Iron limits primary productivity during spring bloom development in the central North Atlantic |
title_sort |
iron limits primary productivity during spring bloom development in the central north atlantic |
publishDate |
2006 |
url |
https://eprints.soton.ac.uk/38083/ |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Moore, C. Mark, Mills, Matthew M., Milne, Angela, Langlois, Rebecca, Achterberg, Eric P., Lochte, Karin, Geider, Richard J. and La Roche, Julie (2006) Iron limits primary productivity during spring bloom development in the central North Atlantic. Global Change Biology, 12 (4), 626-634. (doi:10.1111/j.1365-2486.2006.01122.x <http://dx.doi.org/10.1111/j.1365-2486.2006.01122.x>). |
op_doi |
https://doi.org/10.1111/j.1365-2486.2006.01122.x |
container_title |
Global Change Biology |
container_volume |
12 |
container_issue |
4 |
container_start_page |
626 |
op_container_end_page |
634 |
_version_ |
1772816942563852288 |