The Southern Ocean Hub for Nutrients, Micronutrients, and Their Isotopes in the Global Ocean
The sustenance of marine primary productivity depends on the supply of macro- and micronutrients to photosynthesizers in the ocean’s sunlit surface. Without supply from the deep, sinking particles would deplete the upper ocean of these vital elements within decades. Over the last 20 years, it has be...
Main Authors: | , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
The Oceanography Society
2024
|
Subjects: | |
Online Access: | https://hdl.handle.net/20.500.11850/675535 https://doi.org/10.3929/ethz-b-000675535 |
id |
ftethz:oai:www.research-collection.ethz.ch:20.500.11850/675535 |
---|---|
record_format |
openpolar |
spelling |
ftethz:oai:www.research-collection.ethz.ch:20.500.11850/675535 2024-10-06T13:52:55+00:00 The Southern Ocean Hub for Nutrients, Micronutrients, and Their Isotopes in the Global Ocean De Souza, Gregory id_orcid:0 000-0002-0232-2690 Morrison, Adele K. 2024-06 application/application/pdf https://hdl.handle.net/20.500.11850/675535 https://doi.org/10.3929/ethz-b-000675535 en eng The Oceanography Society info:eu-repo/semantics/altIdentifier/doi/10.5670/oceanog.2024.414 info:eu-repo/semantics/altIdentifier/wos/001236413700001 http://hdl.handle.net/20.500.11850/675535 doi:10.3929/ethz-b-000675535 info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International Oceanography, 37 (2) info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2024 ftethz https://doi.org/20.500.11850/67553510.3929/ethz-b-00067553510.5670/oceanog.2024.414 2024-09-10T15:45:30Z The sustenance of marine primary productivity depends on the supply of macro- and micronutrients to photosynthesizers in the ocean’s sunlit surface. Without supply from the deep, sinking particles would deplete the upper ocean of these vital elements within decades. Over the last 20 years, it has been recognized that the Southern Ocean, where nutrient-rich deep waters are brought to the surface and the water masses that fill much of the upper ocean are formed, plays a pivotal role in replenishing upper-ocean nutrients. Photosynthesizers that grow and take up nutrients within the Southern Ocean circulation “hub” thus have an outsize influence on global-scale distributions of macronutrients and many micronutrients. The GEOTRACES program has contributed observations of the concentration and stable isotope composition of “nutrient-type” metals like zinc, cadmium, and nickel, within the Southern Ocean and beyond it, that are driving a sea change in our understanding of their marine cycles. Simultaneously, our understanding of Southern Ocean circulation has been refined, with recognition of the importance of longitudinal variability and subtropical overturning. Here, we aim to bring together these two strands of progress, review insights gained into marine micronutrient cycling, and consider the questions that remain to be resolved. ISSN:1042-8275 ISSN:2377-617X Article in Journal/Newspaper Southern Ocean ETH Zürich Research Collection Southern Ocean |
institution |
Open Polar |
collection |
ETH Zürich Research Collection |
op_collection_id |
ftethz |
language |
English |
description |
The sustenance of marine primary productivity depends on the supply of macro- and micronutrients to photosynthesizers in the ocean’s sunlit surface. Without supply from the deep, sinking particles would deplete the upper ocean of these vital elements within decades. Over the last 20 years, it has been recognized that the Southern Ocean, where nutrient-rich deep waters are brought to the surface and the water masses that fill much of the upper ocean are formed, plays a pivotal role in replenishing upper-ocean nutrients. Photosynthesizers that grow and take up nutrients within the Southern Ocean circulation “hub” thus have an outsize influence on global-scale distributions of macronutrients and many micronutrients. The GEOTRACES program has contributed observations of the concentration and stable isotope composition of “nutrient-type” metals like zinc, cadmium, and nickel, within the Southern Ocean and beyond it, that are driving a sea change in our understanding of their marine cycles. Simultaneously, our understanding of Southern Ocean circulation has been refined, with recognition of the importance of longitudinal variability and subtropical overturning. Here, we aim to bring together these two strands of progress, review insights gained into marine micronutrient cycling, and consider the questions that remain to be resolved. ISSN:1042-8275 ISSN:2377-617X |
format |
Article in Journal/Newspaper |
author |
De Souza, Gregory id_orcid:0 000-0002-0232-2690 Morrison, Adele K. |
spellingShingle |
De Souza, Gregory id_orcid:0 000-0002-0232-2690 Morrison, Adele K. The Southern Ocean Hub for Nutrients, Micronutrients, and Their Isotopes in the Global Ocean |
author_facet |
De Souza, Gregory id_orcid:0 000-0002-0232-2690 Morrison, Adele K. |
author_sort |
De Souza, Gregory |
title |
The Southern Ocean Hub for Nutrients, Micronutrients, and Their Isotopes in the Global Ocean |
title_short |
The Southern Ocean Hub for Nutrients, Micronutrients, and Their Isotopes in the Global Ocean |
title_full |
The Southern Ocean Hub for Nutrients, Micronutrients, and Their Isotopes in the Global Ocean |
title_fullStr |
The Southern Ocean Hub for Nutrients, Micronutrients, and Their Isotopes in the Global Ocean |
title_full_unstemmed |
The Southern Ocean Hub for Nutrients, Micronutrients, and Their Isotopes in the Global Ocean |
title_sort |
southern ocean hub for nutrients, micronutrients, and their isotopes in the global ocean |
publisher |
The Oceanography Society |
publishDate |
2024 |
url |
https://hdl.handle.net/20.500.11850/675535 https://doi.org/10.3929/ethz-b-000675535 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
Oceanography, 37 (2) |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5670/oceanog.2024.414 info:eu-repo/semantics/altIdentifier/wos/001236413700001 http://hdl.handle.net/20.500.11850/675535 doi:10.3929/ethz-b-000675535 |
op_rights |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International |
op_doi |
https://doi.org/20.500.11850/67553510.3929/ethz-b-00067553510.5670/oceanog.2024.414 |
_version_ |
1812181529676218368 |