Around one third of current Arctic Ocean primary production sustained by rivers and coastal erosion
Net primary production (NPP) is the foundation of the oceans’ ecosystems and the fisheries they support. In the Arctic Ocean, NPP is controlled by a complex interplay of light and nutrients supplied by upwelling as well as lateral inflows from adjacent oceans and land. But so far, the role of the in...
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ftethz:oai:www.research-collection.ethz.ch:20.500.11850/462352 2023-08-20T04:03:24+02:00 Around one third of current Arctic Ocean primary production sustained by rivers and coastal erosion Terhaar, Jens Lauerwald, Ronny Regnier, Pierre Gruber, Nicolas id_orcid:0 000-0002-2085-2310 Bopp, Laurent 2021-01-08 application/application/pdf https://hdl.handle.net/20.500.11850/462352 https://doi.org/10.3929/ethz-b-000462352 en eng Nature info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-020-20470-z info:eu-repo/semantics/altIdentifier/wos/000626605200005 info:eu-repo/grantAgreement/SBFI/H2020/641816 info:eu-repo/grantAgreement/EC/H2020/821003 http://hdl.handle.net/20.500.11850/462352 doi:10.3929/ethz-b-000462352 info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International Nature Communications, 12 (1) Element cycles Marine biology Marine chemistry info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2021 ftethz https://doi.org/20.500.11850/46235210.3929/ethz-b-00046235210.1038/s41467-020-20470-z 2023-07-30T23:53:04Z Net primary production (NPP) is the foundation of the oceans’ ecosystems and the fisheries they support. In the Arctic Ocean, NPP is controlled by a complex interplay of light and nutrients supplied by upwelling as well as lateral inflows from adjacent oceans and land. But so far, the role of the input from land by rivers and coastal erosion has not been given much attention. Here, by upscaling observations from the six largest rivers and using measured coastal erosion rates, we construct a pan-Arctic, spatio-temporally resolved estimate of the land input of carbon and nutrients to the Arctic Ocean. Using an ocean-biogeochemical model, we estimate that this input fuels 28–51% of the current annual Arctic Ocean NPP. This strong enhancement of NPP is a consequence of efficient recycling of the land-derived nutrients on the vast Arctic shelves. Our results thus suggest that nutrient input from the land is a key process that will affect the future evolution of Arctic Ocean NPP. ISSN:2041-1723 Article in Journal/Newspaper Arctic Arctic Ocean ETH Zürich Research Collection Arctic Arctic Ocean |
institution |
Open Polar |
collection |
ETH Zürich Research Collection |
op_collection_id |
ftethz |
language |
English |
topic |
Element cycles Marine biology Marine chemistry |
spellingShingle |
Element cycles Marine biology Marine chemistry Terhaar, Jens Lauerwald, Ronny Regnier, Pierre Gruber, Nicolas id_orcid:0 000-0002-2085-2310 Bopp, Laurent Around one third of current Arctic Ocean primary production sustained by rivers and coastal erosion |
topic_facet |
Element cycles Marine biology Marine chemistry |
description |
Net primary production (NPP) is the foundation of the oceans’ ecosystems and the fisheries they support. In the Arctic Ocean, NPP is controlled by a complex interplay of light and nutrients supplied by upwelling as well as lateral inflows from adjacent oceans and land. But so far, the role of the input from land by rivers and coastal erosion has not been given much attention. Here, by upscaling observations from the six largest rivers and using measured coastal erosion rates, we construct a pan-Arctic, spatio-temporally resolved estimate of the land input of carbon and nutrients to the Arctic Ocean. Using an ocean-biogeochemical model, we estimate that this input fuels 28–51% of the current annual Arctic Ocean NPP. This strong enhancement of NPP is a consequence of efficient recycling of the land-derived nutrients on the vast Arctic shelves. Our results thus suggest that nutrient input from the land is a key process that will affect the future evolution of Arctic Ocean NPP. ISSN:2041-1723 |
format |
Article in Journal/Newspaper |
author |
Terhaar, Jens Lauerwald, Ronny Regnier, Pierre Gruber, Nicolas id_orcid:0 000-0002-2085-2310 Bopp, Laurent |
author_facet |
Terhaar, Jens Lauerwald, Ronny Regnier, Pierre Gruber, Nicolas id_orcid:0 000-0002-2085-2310 Bopp, Laurent |
author_sort |
Terhaar, Jens |
title |
Around one third of current Arctic Ocean primary production sustained by rivers and coastal erosion |
title_short |
Around one third of current Arctic Ocean primary production sustained by rivers and coastal erosion |
title_full |
Around one third of current Arctic Ocean primary production sustained by rivers and coastal erosion |
title_fullStr |
Around one third of current Arctic Ocean primary production sustained by rivers and coastal erosion |
title_full_unstemmed |
Around one third of current Arctic Ocean primary production sustained by rivers and coastal erosion |
title_sort |
around one third of current arctic ocean primary production sustained by rivers and coastal erosion |
publisher |
Nature |
publishDate |
2021 |
url |
https://hdl.handle.net/20.500.11850/462352 https://doi.org/10.3929/ethz-b-000462352 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean |
genre_facet |
Arctic Arctic Ocean |
op_source |
Nature Communications, 12 (1) |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-020-20470-z info:eu-repo/semantics/altIdentifier/wos/000626605200005 info:eu-repo/grantAgreement/SBFI/H2020/641816 info:eu-repo/grantAgreement/EC/H2020/821003 http://hdl.handle.net/20.500.11850/462352 doi:10.3929/ethz-b-000462352 |
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/20.500.11850/46235210.3929/ethz-b-00046235210.1038/s41467-020-20470-z |
_version_ |
1774713762553528320 |