Bioactive Trace Metal Distributions and Biogeochemical Controls in the Southern Ocean
Extensive sampling in many regions of the Southern Ocean has demonstrated that surface water concentrations of dissolved Fe are low enough to limit phytoplankton growth. In contrast, there is currently no evidence that other bioactive elements (e.g., Mn, Zn, Co) are similarly limiting. Although atmo...
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ftdoajarticles:oai:doaj.org/article:12d1c297355f41cba2a8918de74432e2 2023-05-15T13:50:20+02:00 Bioactive Trace Metal Distributions and Biogeochemical Controls in the Southern Ocean Mariko Hatta Christopher I. Measures Maxime M. Grand 2012-09-01T00:00:00Z https://doaj.org/article/12d1c297355f41cba2a8918de74432e2 EN eng The Oceanography Society http://tos.org/oceanography/archive/25-3_measures.html https://doaj.org/toc/1042-8275 1042-8275 https://doaj.org/article/12d1c297355f41cba2a8918de74432e2 Oceanography, Vol 25, Iss 3, Pp 122-133 (2012) Southern Ocean biogeochemistry dissolved iron iron fertilization Oceanography GC1-1581 article 2012 ftdoajarticles 2022-12-31T01:57:24Z Extensive sampling in many regions of the Southern Ocean has demonstrated that surface water concentrations of dissolved Fe are low enough to limit phytoplankton growth. In contrast, there is currently no evidence that other bioactive elements (e.g., Mn, Zn, Co) are similarly limiting. Although atmospheric input of dissolved Fe to Southern Ocean surface waters appears to be low, resuspension of sediments from shallow regions around islands and the Antarctic coastline can inject significant amounts of Fe into the surrounding waters, stimulating primary production and providing a natural laboratory for studying the response of biological systems to natural Fe fertilization processes. Future work using a multitracer approach across seasonal transitions would be particularly beneficial to quantifying input processes and fluxes. However, it would require the design of new sampling platforms that can accommodate trace metal sampling under extreme weather conditions. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean Directory of Open Access Journals: DOAJ Articles Antarctic Southern Ocean The Antarctic |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Southern Ocean biogeochemistry dissolved iron iron fertilization Oceanography GC1-1581 |
spellingShingle |
Southern Ocean biogeochemistry dissolved iron iron fertilization Oceanography GC1-1581 Mariko Hatta Christopher I. Measures Maxime M. Grand Bioactive Trace Metal Distributions and Biogeochemical Controls in the Southern Ocean |
topic_facet |
Southern Ocean biogeochemistry dissolved iron iron fertilization Oceanography GC1-1581 |
description |
Extensive sampling in many regions of the Southern Ocean has demonstrated that surface water concentrations of dissolved Fe are low enough to limit phytoplankton growth. In contrast, there is currently no evidence that other bioactive elements (e.g., Mn, Zn, Co) are similarly limiting. Although atmospheric input of dissolved Fe to Southern Ocean surface waters appears to be low, resuspension of sediments from shallow regions around islands and the Antarctic coastline can inject significant amounts of Fe into the surrounding waters, stimulating primary production and providing a natural laboratory for studying the response of biological systems to natural Fe fertilization processes. Future work using a multitracer approach across seasonal transitions would be particularly beneficial to quantifying input processes and fluxes. However, it would require the design of new sampling platforms that can accommodate trace metal sampling under extreme weather conditions. |
format |
Article in Journal/Newspaper |
author |
Mariko Hatta Christopher I. Measures Maxime M. Grand |
author_facet |
Mariko Hatta Christopher I. Measures Maxime M. Grand |
author_sort |
Mariko Hatta |
title |
Bioactive Trace Metal Distributions and Biogeochemical Controls in the Southern Ocean |
title_short |
Bioactive Trace Metal Distributions and Biogeochemical Controls in the Southern Ocean |
title_full |
Bioactive Trace Metal Distributions and Biogeochemical Controls in the Southern Ocean |
title_fullStr |
Bioactive Trace Metal Distributions and Biogeochemical Controls in the Southern Ocean |
title_full_unstemmed |
Bioactive Trace Metal Distributions and Biogeochemical Controls in the Southern Ocean |
title_sort |
bioactive trace metal distributions and biogeochemical controls in the southern ocean |
publisher |
The Oceanography Society |
publishDate |
2012 |
url |
https://doaj.org/article/12d1c297355f41cba2a8918de74432e2 |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_source |
Oceanography, Vol 25, Iss 3, Pp 122-133 (2012) |
op_relation |
http://tos.org/oceanography/archive/25-3_measures.html https://doaj.org/toc/1042-8275 1042-8275 https://doaj.org/article/12d1c297355f41cba2a8918de74432e2 |
_version_ |
1766253362213289984 |