Dissolved organic carbon (DOC) is essential to balance the metabolic demands of four dominant North-Atlantic deep-sea sponges
Sponges are ubiquitous components of various deep-sea habitats, including cold water coral reefs, and form deep-sea sponge grounds. Although the deep sea is generally considered to be a food-limited environment, these ecosystems are known to be hotspots of biodiversity and carbon cycling. To assess...
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ftunivwagenin:oai:library.wur.nl:wurpubs/575046 2024-04-28T08:31:04+00:00 Dissolved organic carbon (DOC) is essential to balance the metabolic demands of four dominant North-Atlantic deep-sea sponges Bart, Martijn C. Mueller, Benjamin Rombouts, Titus van de Ven, Clea Tompkins, Gabrielle J. Osinga, Ronald Brussaard, Corina P.D. MacDonald, Barry Engel, Anja Rapp, Hans Tore de Goeij, Jasper M. 2021 application/pdf https://research.wur.nl/en/publications/dissolved-organic-carbon-doc-is-essential-to-balance-the-metaboli https://doi.org/10.1002/lno.11652 en eng https://edepot.wur.nl/537627 https://research.wur.nl/en/publications/dissolved-organic-carbon-doc-is-essential-to-balance-the-metaboli doi:10.1002/lno.11652 https://creativecommons.org/licenses/by/4.0/ Wageningen University & Research Limnology and Oceanography 66 (2021) 3 ISSN: 0024-3590 Life Science Article/Letter to editor 2021 ftunivwagenin https://doi.org/10.1002/lno.11652 2024-04-03T15:08:08Z Sponges are ubiquitous components of various deep-sea habitats, including cold water coral reefs, and form deep-sea sponge grounds. Although the deep sea is generally considered to be a food-limited environment, these ecosystems are known to be hotspots of biodiversity and carbon cycling. To assess the role of sponges in the carbon cycling of deep-sea ecosystems, we studied the carbon budgets of six dominant deep-sea sponges of different phylogenetic origin, with various growth forms and hosting distinct associated microbial communities, in an ex situ aquarium setup. Additionally, we determined biomass metrics—planar surface area, volume, wet weight, dry weight (DW), ash-free dry weight, and organic carbon (C) content—and conversion factors for all species. Oxygen (O2) removal rates averaged 3.3 ± 2.8 μmol O2 g DWsponge h−1 (mean ± SD), live particulate (bacterio- and phytoplankton) organic carbon removal rates averaged 0.30 ± 0.39 μmol C g DWsponge h−1 and dissolved organic carbon (DOC) removal rates averaged 18.70 ± 25.02 μmol C g DWsponge h−1. Carbon mass balances were calculated for four species and revealed that the sponges acquired 1.3–6.6 times the amount of carbon needed to sustain their minimal respiratory demands. These results indicate that irrespective of taxonomic class, growth form, and abundance of microbial symbionts, DOC is responsible for over 90% of the total net organic carbon removal of deep-sea sponges and allows them to sustain themselves in otherwise food-limited environments on the ocean floor. Article in Journal/Newspaper North Atlantic Wageningen UR (University & Research Centre): Digital Library Limnology and Oceanography 66 3 925 938 |
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Open Polar |
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Wageningen UR (University & Research Centre): Digital Library |
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ftunivwagenin |
language |
English |
topic |
Life Science |
spellingShingle |
Life Science Bart, Martijn C. Mueller, Benjamin Rombouts, Titus van de Ven, Clea Tompkins, Gabrielle J. Osinga, Ronald Brussaard, Corina P.D. MacDonald, Barry Engel, Anja Rapp, Hans Tore de Goeij, Jasper M. Dissolved organic carbon (DOC) is essential to balance the metabolic demands of four dominant North-Atlantic deep-sea sponges |
topic_facet |
Life Science |
description |
Sponges are ubiquitous components of various deep-sea habitats, including cold water coral reefs, and form deep-sea sponge grounds. Although the deep sea is generally considered to be a food-limited environment, these ecosystems are known to be hotspots of biodiversity and carbon cycling. To assess the role of sponges in the carbon cycling of deep-sea ecosystems, we studied the carbon budgets of six dominant deep-sea sponges of different phylogenetic origin, with various growth forms and hosting distinct associated microbial communities, in an ex situ aquarium setup. Additionally, we determined biomass metrics—planar surface area, volume, wet weight, dry weight (DW), ash-free dry weight, and organic carbon (C) content—and conversion factors for all species. Oxygen (O2) removal rates averaged 3.3 ± 2.8 μmol O2 g DWsponge h−1 (mean ± SD), live particulate (bacterio- and phytoplankton) organic carbon removal rates averaged 0.30 ± 0.39 μmol C g DWsponge h−1 and dissolved organic carbon (DOC) removal rates averaged 18.70 ± 25.02 μmol C g DWsponge h−1. Carbon mass balances were calculated for four species and revealed that the sponges acquired 1.3–6.6 times the amount of carbon needed to sustain their minimal respiratory demands. These results indicate that irrespective of taxonomic class, growth form, and abundance of microbial symbionts, DOC is responsible for over 90% of the total net organic carbon removal of deep-sea sponges and allows them to sustain themselves in otherwise food-limited environments on the ocean floor. |
format |
Article in Journal/Newspaper |
author |
Bart, Martijn C. Mueller, Benjamin Rombouts, Titus van de Ven, Clea Tompkins, Gabrielle J. Osinga, Ronald Brussaard, Corina P.D. MacDonald, Barry Engel, Anja Rapp, Hans Tore de Goeij, Jasper M. |
author_facet |
Bart, Martijn C. Mueller, Benjamin Rombouts, Titus van de Ven, Clea Tompkins, Gabrielle J. Osinga, Ronald Brussaard, Corina P.D. MacDonald, Barry Engel, Anja Rapp, Hans Tore de Goeij, Jasper M. |
author_sort |
Bart, Martijn C. |
title |
Dissolved organic carbon (DOC) is essential to balance the metabolic demands of four dominant North-Atlantic deep-sea sponges |
title_short |
Dissolved organic carbon (DOC) is essential to balance the metabolic demands of four dominant North-Atlantic deep-sea sponges |
title_full |
Dissolved organic carbon (DOC) is essential to balance the metabolic demands of four dominant North-Atlantic deep-sea sponges |
title_fullStr |
Dissolved organic carbon (DOC) is essential to balance the metabolic demands of four dominant North-Atlantic deep-sea sponges |
title_full_unstemmed |
Dissolved organic carbon (DOC) is essential to balance the metabolic demands of four dominant North-Atlantic deep-sea sponges |
title_sort |
dissolved organic carbon (doc) is essential to balance the metabolic demands of four dominant north-atlantic deep-sea sponges |
publishDate |
2021 |
url |
https://research.wur.nl/en/publications/dissolved-organic-carbon-doc-is-essential-to-balance-the-metaboli https://doi.org/10.1002/lno.11652 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Limnology and Oceanography 66 (2021) 3 ISSN: 0024-3590 |
op_relation |
https://edepot.wur.nl/537627 https://research.wur.nl/en/publications/dissolved-organic-carbon-doc-is-essential-to-balance-the-metaboli doi:10.1002/lno.11652 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ Wageningen University & Research |
op_doi |
https://doi.org/10.1002/lno.11652 |
container_title |
Limnology and Oceanography |
container_volume |
66 |
container_issue |
3 |
container_start_page |
925 |
op_container_end_page |
938 |
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1797588716595707904 |