Sponge skeletons as an important sink of silicon in the global oceans
International audience Silicon (Si) is a pivotal element in the biogeochemical and ecological functioning of the ocean. The marine Si cycle is thought to be in internal equilibrium, but the recent discovery of Si entries through groundwater and glacial melting have increased the known Si inputs rela...
Published in: | Nature Geoscience |
---|---|
Main Authors: | , , , , , , |
Other Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2019
|
Subjects: | |
Online Access: | https://hal.science/hal-02324046 https://hal.science/hal-02324046/document https://hal.science/hal-02324046/file/Maldonado%20et%20al%20Nature%20Biogeoscience%202019.pdf https://doi.org/10.1038/s41561-019-0430-7 |
id |
ftinsu:oai:HAL:hal-02324046v1 |
---|---|
record_format |
openpolar |
spelling |
ftinsu:oai:HAL:hal-02324046v1 2024-02-11T10:08:52+01:00 Sponge skeletons as an important sink of silicon in the global oceans Maldonado, Manuel López-Acosta, María Sitjà, Cèlia García-Puig, Marta Galobart, Cristina Ercilla, Gemma Leynaert, Aude Centre d'Estudis Avançats de Blanes (CEAB) Consejo Superior de Investigaciones Cientificas = Spanish National Research Council (CSIC) Institute of Marine Sciences / Institut de Ciències del Mar Barcelona (ICM) Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) European Project: 679849,H2020,H2020-BG-2015-2,SponGES(2016) 2019-10 https://hal.science/hal-02324046 https://hal.science/hal-02324046/document https://hal.science/hal-02324046/file/Maldonado%20et%20al%20Nature%20Biogeoscience%202019.pdf https://doi.org/10.1038/s41561-019-0430-7 en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/s41561-019-0430-7 info:eu-repo/grantAgreement//679849/EU/Deep-sea Sponge Grounds Ecosystems of the North Atlantic: an integrated approach towards their preservation and sustainable exploitation/SponGES hal-02324046 https://hal.science/hal-02324046 https://hal.science/hal-02324046/document https://hal.science/hal-02324046/file/Maldonado%20et%20al%20Nature%20Biogeoscience%202019.pdf doi:10.1038/s41561-019-0430-7 info:eu-repo/semantics/OpenAccess ISSN: 1752-0894 Nature Geoscience https://hal.science/hal-02324046 Nature Geoscience, 2019, 12 (10), pp.815-822. ⟨10.1038/s41561-019-0430-7⟩ DISSOLUTION SEDIMENTS BUDGETS ACL SOUTHERN-OCEAN COASTAL WATERS MEASURING BIOGENIC SILICA WORLD OCEAN MARINE OPAL ACCUMULATION [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2019 ftinsu https://doi.org/10.1038/s41561-019-0430-7 2024-01-24T17:35:35Z International audience Silicon (Si) is a pivotal element in the biogeochemical and ecological functioning of the ocean. The marine Si cycle is thought to be in internal equilibrium, but the recent discovery of Si entries through groundwater and glacial melting have increased the known Si inputs relative to the outputs in the global oceans. Known outputs are due to the burying of diatom skeletons or their conversion into authigenic clay by reverse weathering. Here we show that non-phototrophic organisms, such as sponges and radiolarians, also facilitate significant Si burial through their siliceous skeletons. Microscopic examination and digestion of sediments revealed that most burial occurs through sponge skeletons, which, being unusually resistant to dissolution, had passed unnoticed in the biogeochemical inventories of sediments. The preservation of sponge spicules in sediments was 45.2 +/- 27.4%, but only 6.8 +/- 10.1% for radiolarian testa and 8% for diatom frustules. Sponges lead to a global burial flux of 1.71 +/- 1.61TmolSi yr(-1) and only 0.09 +/- 0.05 TmolSi yr(-1) occurs through radiolarians. Collectively, these two non-phototrophically produced silicas increase the Si output of the ocean to 12.8 TmolSi yr(-1), which accounts for a previously ignored sink that is necessary to adequately assess the global balance of the marine Si cycle. Article in Journal/Newspaper Southern Ocean Institut national des sciences de l'Univers: HAL-INSU Southern Ocean Nature Geoscience 12 10 815 822 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
DISSOLUTION SEDIMENTS BUDGETS ACL SOUTHERN-OCEAN COASTAL WATERS MEASURING BIOGENIC SILICA WORLD OCEAN MARINE OPAL ACCUMULATION [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
DISSOLUTION SEDIMENTS BUDGETS ACL SOUTHERN-OCEAN COASTAL WATERS MEASURING BIOGENIC SILICA WORLD OCEAN MARINE OPAL ACCUMULATION [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDE.BE]Environmental Sciences/Biodiversity and Ecology Maldonado, Manuel López-Acosta, María Sitjà, Cèlia García-Puig, Marta Galobart, Cristina Ercilla, Gemma Leynaert, Aude Sponge skeletons as an important sink of silicon in the global oceans |
topic_facet |
DISSOLUTION SEDIMENTS BUDGETS ACL SOUTHERN-OCEAN COASTAL WATERS MEASURING BIOGENIC SILICA WORLD OCEAN MARINE OPAL ACCUMULATION [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
International audience Silicon (Si) is a pivotal element in the biogeochemical and ecological functioning of the ocean. The marine Si cycle is thought to be in internal equilibrium, but the recent discovery of Si entries through groundwater and glacial melting have increased the known Si inputs relative to the outputs in the global oceans. Known outputs are due to the burying of diatom skeletons or their conversion into authigenic clay by reverse weathering. Here we show that non-phototrophic organisms, such as sponges and radiolarians, also facilitate significant Si burial through their siliceous skeletons. Microscopic examination and digestion of sediments revealed that most burial occurs through sponge skeletons, which, being unusually resistant to dissolution, had passed unnoticed in the biogeochemical inventories of sediments. The preservation of sponge spicules in sediments was 45.2 +/- 27.4%, but only 6.8 +/- 10.1% for radiolarian testa and 8% for diatom frustules. Sponges lead to a global burial flux of 1.71 +/- 1.61TmolSi yr(-1) and only 0.09 +/- 0.05 TmolSi yr(-1) occurs through radiolarians. Collectively, these two non-phototrophically produced silicas increase the Si output of the ocean to 12.8 TmolSi yr(-1), which accounts for a previously ignored sink that is necessary to adequately assess the global balance of the marine Si cycle. |
author2 |
Centre d'Estudis Avançats de Blanes (CEAB) Consejo Superior de Investigaciones Cientificas = Spanish National Research Council (CSIC) Institute of Marine Sciences / Institut de Ciències del Mar Barcelona (ICM) Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) European Project: 679849,H2020,H2020-BG-2015-2,SponGES(2016) |
format |
Article in Journal/Newspaper |
author |
Maldonado, Manuel López-Acosta, María Sitjà, Cèlia García-Puig, Marta Galobart, Cristina Ercilla, Gemma Leynaert, Aude |
author_facet |
Maldonado, Manuel López-Acosta, María Sitjà, Cèlia García-Puig, Marta Galobart, Cristina Ercilla, Gemma Leynaert, Aude |
author_sort |
Maldonado, Manuel |
title |
Sponge skeletons as an important sink of silicon in the global oceans |
title_short |
Sponge skeletons as an important sink of silicon in the global oceans |
title_full |
Sponge skeletons as an important sink of silicon in the global oceans |
title_fullStr |
Sponge skeletons as an important sink of silicon in the global oceans |
title_full_unstemmed |
Sponge skeletons as an important sink of silicon in the global oceans |
title_sort |
sponge skeletons as an important sink of silicon in the global oceans |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://hal.science/hal-02324046 https://hal.science/hal-02324046/document https://hal.science/hal-02324046/file/Maldonado%20et%20al%20Nature%20Biogeoscience%202019.pdf https://doi.org/10.1038/s41561-019-0430-7 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
ISSN: 1752-0894 Nature Geoscience https://hal.science/hal-02324046 Nature Geoscience, 2019, 12 (10), pp.815-822. ⟨10.1038/s41561-019-0430-7⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/s41561-019-0430-7 info:eu-repo/grantAgreement//679849/EU/Deep-sea Sponge Grounds Ecosystems of the North Atlantic: an integrated approach towards their preservation and sustainable exploitation/SponGES hal-02324046 https://hal.science/hal-02324046 https://hal.science/hal-02324046/document https://hal.science/hal-02324046/file/Maldonado%20et%20al%20Nature%20Biogeoscience%202019.pdf doi:10.1038/s41561-019-0430-7 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1038/s41561-019-0430-7 |
container_title |
Nature Geoscience |
container_volume |
12 |
container_issue |
10 |
container_start_page |
815 |
op_container_end_page |
822 |
_version_ |
1790608488175501312 |