Transformation of dissolved organic matter by two Indo‐Pacific sponges
Dissolved organic matter (DOM) is the largest organic carbon reservoir in the ocean and an integral component of biogeochemical cycles. The role of free‐living microbes in DOM transformation has been studied thoroughly, whereas little attention has been directed towards the influence of benthic orga...
Published in: | Limnology and Oceanography |
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John Wiley & Sons, Inc.
2022
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Online Access: | https://doi.org/10.1002/lno.12214 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/10467 |
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ftsubggeo:oai:e-docs.geo-leo.de:11858/10467 2023-05-15T13:15:50+02:00 Transformation of dissolved organic matter by two Indo‐Pacific sponges Hildebrand, Tabea Osterholz, Helena Bunse, Carina Grotheer, Hendrik Dittmar, Thorsten Schupp, Peter J. Osterholz, Helena; 4 Leibniz‐Institute for Baltic Sea Research Warnemünde Rostock Germany Bunse, Carina; 3 Institute for Chemistry and Biology of the Marine Environment (ICBM), University of Oldenburg Oldenburg Germany Grotheer, Hendrik; 1 Alfred‐Wegener‐Institut Helmholtz‐Zentrum für Polar‐ und Meeresforschung Bremerhaven Germany Dittmar, Thorsten; 2 Helmholtz‐Institute for Functional Marine Biodiversity at the University of Oldenburg (HIFMB) Oldenburg Germany Schupp, Peter J.; 2 Helmholtz‐Institute for Functional Marine Biodiversity at the University of Oldenburg (HIFMB) Oldenburg Germany 2022-09-12 https://doi.org/10.1002/lno.12214 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/10467 eng eng John Wiley & Sons, Inc. Hoboken, USA doi:10.1002/lno.12214 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/10467 This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. CC-BY ddc:577.7 Indo-Pacific sponges dissolved organic matter biogeochemical cycles doc-type:article 2022 ftsubggeo https://doi.org/10.1002/lno.12214 2023-01-29T23:12:02Z Dissolved organic matter (DOM) is the largest organic carbon reservoir in the ocean and an integral component of biogeochemical cycles. The role of free‐living microbes in DOM transformation has been studied thoroughly, whereas little attention has been directed towards the influence of benthic organisms. Sponges are efficient filter feeders and common inhabitants of many benthic communities circumglobally. Here, we investigated how two tropical coral reef sponges shape marine DOM. We compared bacterial abundance, inorganic and organic nutrients in off reef, sponge inhalant, and sponge exhalant water of Melophlus sarasinorum and Rhabdastrella globostellata. DOM and bacterial cells were taken up, and dissolved inorganic nitrogen was released by the two Indo‐Pacific sponges. Both sponge species utilized a common set of 142 of a total of 3040 compounds detected in DOM on a molecular formula level via ultrahigh‐resolution mass spectrometry. In addition, species‐specific uptake was observed, likely due to differences in their associated microbial communities. Overall, the sponges removed presumably semi‐labile and semi‐refractory compounds from the water column, thereby competing with pelagic bacteria. Within minutes, sponge holobionts altered the molecular composition of surface water DOM (inhalant) into a composition similar to deep‐sea DOM (exhalent). The apparent radiocarbon age of DOM increased consistently from off reef and inhalant to exhalant by about 900 14C years for M. sarasinorum. In the pelagic, similar transformations require decades to centuries. Our results stress the dependence of DOM lability definition on the respective environment and illustrate that sponges are hotspots of DOM transformation in the ocean. Helmholtz Institute for Functional Marine Biodiversity at the University of Oldenburg Ministry for Science and Culture of Lower Saxony http://dx.doi.org/10.13039/501100010570 Carl‐von‐Ossietzky University Oldenburg Alfred‐Wegener‐Institute, Helmholtz‐Center for Polar and Marine Research ... Article in Journal/Newspaper Alfred Wegener Institute GEO-LEOe-docs (FID GEO) Oldenburg Pacific Limnology and Oceanography 67 11 2483 2496 |
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Open Polar |
collection |
GEO-LEOe-docs (FID GEO) |
op_collection_id |
ftsubggeo |
language |
English |
topic |
ddc:577.7 Indo-Pacific sponges dissolved organic matter biogeochemical cycles |
spellingShingle |
ddc:577.7 Indo-Pacific sponges dissolved organic matter biogeochemical cycles Hildebrand, Tabea Osterholz, Helena Bunse, Carina Grotheer, Hendrik Dittmar, Thorsten Schupp, Peter J. Osterholz, Helena; 4 Leibniz‐Institute for Baltic Sea Research Warnemünde Rostock Germany Bunse, Carina; 3 Institute for Chemistry and Biology of the Marine Environment (ICBM), University of Oldenburg Oldenburg Germany Grotheer, Hendrik; 1 Alfred‐Wegener‐Institut Helmholtz‐Zentrum für Polar‐ und Meeresforschung Bremerhaven Germany Dittmar, Thorsten; 2 Helmholtz‐Institute for Functional Marine Biodiversity at the University of Oldenburg (HIFMB) Oldenburg Germany Schupp, Peter J.; 2 Helmholtz‐Institute for Functional Marine Biodiversity at the University of Oldenburg (HIFMB) Oldenburg Germany Transformation of dissolved organic matter by two Indo‐Pacific sponges |
topic_facet |
ddc:577.7 Indo-Pacific sponges dissolved organic matter biogeochemical cycles |
description |
Dissolved organic matter (DOM) is the largest organic carbon reservoir in the ocean and an integral component of biogeochemical cycles. The role of free‐living microbes in DOM transformation has been studied thoroughly, whereas little attention has been directed towards the influence of benthic organisms. Sponges are efficient filter feeders and common inhabitants of many benthic communities circumglobally. Here, we investigated how two tropical coral reef sponges shape marine DOM. We compared bacterial abundance, inorganic and organic nutrients in off reef, sponge inhalant, and sponge exhalant water of Melophlus sarasinorum and Rhabdastrella globostellata. DOM and bacterial cells were taken up, and dissolved inorganic nitrogen was released by the two Indo‐Pacific sponges. Both sponge species utilized a common set of 142 of a total of 3040 compounds detected in DOM on a molecular formula level via ultrahigh‐resolution mass spectrometry. In addition, species‐specific uptake was observed, likely due to differences in their associated microbial communities. Overall, the sponges removed presumably semi‐labile and semi‐refractory compounds from the water column, thereby competing with pelagic bacteria. Within minutes, sponge holobionts altered the molecular composition of surface water DOM (inhalant) into a composition similar to deep‐sea DOM (exhalent). The apparent radiocarbon age of DOM increased consistently from off reef and inhalant to exhalant by about 900 14C years for M. sarasinorum. In the pelagic, similar transformations require decades to centuries. Our results stress the dependence of DOM lability definition on the respective environment and illustrate that sponges are hotspots of DOM transformation in the ocean. Helmholtz Institute for Functional Marine Biodiversity at the University of Oldenburg Ministry for Science and Culture of Lower Saxony http://dx.doi.org/10.13039/501100010570 Carl‐von‐Ossietzky University Oldenburg Alfred‐Wegener‐Institute, Helmholtz‐Center for Polar and Marine Research ... |
format |
Article in Journal/Newspaper |
author |
Hildebrand, Tabea Osterholz, Helena Bunse, Carina Grotheer, Hendrik Dittmar, Thorsten Schupp, Peter J. Osterholz, Helena; 4 Leibniz‐Institute for Baltic Sea Research Warnemünde Rostock Germany Bunse, Carina; 3 Institute for Chemistry and Biology of the Marine Environment (ICBM), University of Oldenburg Oldenburg Germany Grotheer, Hendrik; 1 Alfred‐Wegener‐Institut Helmholtz‐Zentrum für Polar‐ und Meeresforschung Bremerhaven Germany Dittmar, Thorsten; 2 Helmholtz‐Institute for Functional Marine Biodiversity at the University of Oldenburg (HIFMB) Oldenburg Germany Schupp, Peter J.; 2 Helmholtz‐Institute for Functional Marine Biodiversity at the University of Oldenburg (HIFMB) Oldenburg Germany |
author_facet |
Hildebrand, Tabea Osterholz, Helena Bunse, Carina Grotheer, Hendrik Dittmar, Thorsten Schupp, Peter J. Osterholz, Helena; 4 Leibniz‐Institute for Baltic Sea Research Warnemünde Rostock Germany Bunse, Carina; 3 Institute for Chemistry and Biology of the Marine Environment (ICBM), University of Oldenburg Oldenburg Germany Grotheer, Hendrik; 1 Alfred‐Wegener‐Institut Helmholtz‐Zentrum für Polar‐ und Meeresforschung Bremerhaven Germany Dittmar, Thorsten; 2 Helmholtz‐Institute for Functional Marine Biodiversity at the University of Oldenburg (HIFMB) Oldenburg Germany Schupp, Peter J.; 2 Helmholtz‐Institute for Functional Marine Biodiversity at the University of Oldenburg (HIFMB) Oldenburg Germany |
author_sort |
Hildebrand, Tabea |
title |
Transformation of dissolved organic matter by two Indo‐Pacific sponges |
title_short |
Transformation of dissolved organic matter by two Indo‐Pacific sponges |
title_full |
Transformation of dissolved organic matter by two Indo‐Pacific sponges |
title_fullStr |
Transformation of dissolved organic matter by two Indo‐Pacific sponges |
title_full_unstemmed |
Transformation of dissolved organic matter by two Indo‐Pacific sponges |
title_sort |
transformation of dissolved organic matter by two indo‐pacific sponges |
publisher |
John Wiley & Sons, Inc. |
publishDate |
2022 |
url |
https://doi.org/10.1002/lno.12214 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/10467 |
geographic |
Oldenburg Pacific |
geographic_facet |
Oldenburg Pacific |
genre |
Alfred Wegener Institute |
genre_facet |
Alfred Wegener Institute |
op_relation |
doi:10.1002/lno.12214 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/10467 |
op_rights |
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1002/lno.12214 |
container_title |
Limnology and Oceanography |
container_volume |
67 |
container_issue |
11 |
container_start_page |
2483 |
op_container_end_page |
2496 |
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1766271279507177472 |