Effect of Inorganic and Organic Carbon Enrichments (DIC and DOC) on the Photosynthesis and Calcification Rates of Two Calcifying Green Algae from a Caribbean Reef Lagoon
Coral reefs worldwide are affected by increasing dissolved inorganic carbon (DIC) and organic carbon (DOC) concentrations due to ocean acidification (OA) and coastal eutrophication. These two stressors can occur simultaneously, particularly in near-shore reef environments with increasing anthropogen...
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Online Access: | https://doi.org/10.1371/journal.pone.0160268 https://napier-repository.worktribe.com/file/327142/1/Effect%20of%20inorganic%20and%20organic%20carbon%20enrichments. http://researchrepository.napier.ac.uk/Output/327142 |
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ftnapieruniv:oai:repository@napier.ac.uk:327142 2024-06-02T08:12:39+00:00 Effect of Inorganic and Organic Carbon Enrichments (DIC and DOC) on the Photosynthesis and Calcification Rates of Two Calcifying Green Algae from a Caribbean Reef Lagoon Schubert, Nadine Diele, Karen Teichberg, Mirta Wild, Christian Enr�quez, Susana Meyer, Friedrich W. Chen, Chaolun Allen 2016-08-03 https://doi.org/10.1371/journal.pone.0160268 https://napier-repository.worktribe.com/file/327142/1/Effect%20of%20inorganic%20and%20organic%20carbon%20enrichments. http://researchrepository.napier.ac.uk/Output/327142 English eng Public Library of Science http://researchrepository.napier.ac.uk/Output/327142 doi:https://doi.org/10.1371/journal.pone.0160268 https://napier-repository.worktribe.com/file/327142/1/Effect%20of%20inorganic%20and%20organic%20carbon%20enrichments. 1932-6203 10.1371/journal.pone.0160268 openAccess http://creativecommons.org/licenses/by/4.0/ Calcification photosynthesis Coral reefs carbonates algae reefs sea water lagoons 570 Life sciences biology QH301 Biology Journal Article publishedVersion 2016 ftnapieruniv https://doi.org/10.1371/journal.pone.0160268 2024-05-07T23:56:10Z Coral reefs worldwide are affected by increasing dissolved inorganic carbon (DIC) and organic carbon (DOC) concentrations due to ocean acidification (OA) and coastal eutrophication. These two stressors can occur simultaneously, particularly in near-shore reef environments with increasing anthropogenic pressure. However, experimental studies on how elevated DIC and DOC interact are scarce and fundamental to understanding potential synergistic effects and foreseeing future changes in coral reef function. Using an open mesocosm experiment, the present study investigated the impact of elevated DIC (pHNBS: 8.2 and 7.8; pCO2: 377 and 1076 μatm) and DOC (added as 833 μmol L-1 of glucose) on calcification and photosynthesis rates of two common calcifying green algae, Halimeda incrassata and Udotea flabellum, in a shallow reef environment. Our results revealed that under elevated DIC, algal photosynthesis decreased similarly for both species, but calcification was more affected in H. incrassata, which also showed carbonate dissolution rates. Elevated DOC reduced photosynthesis and calcification rates in H. incrassata, while in U. flabellum photosynthesis was unaffected and thalus calcification was severely impaired. The combined treatment showed an antagonistic effect of elevated DIC and DOC on the photosynthesis and calcification rates of H. incrassata, and an additive effect in U. flabellum. We conclude that the dominant sand dweller H. incrassata is more negatively affected by both DIC and DOC enrichments, but that their impact could be mitigated when they occur simultaneously. In contrast, U. flabellum can be less affected in coastal eutrophic waters by elevated DIC, but its contribution to reef carbonate sediment production could be further reduced. Accordingly, while the capacity of environmental eutrophication to exacerbate the impact of OA on algal-derived carbonate sand production seems to be species-specific, significant reductions can be expected under future OA scenarios, with important consequences for beach ... Article in Journal/Newspaper Ocean acidification Edinburgh Napier Repository (Napier University Edinburgh) PLOS ONE 11 8 e0160268 |
institution |
Open Polar |
collection |
Edinburgh Napier Repository (Napier University Edinburgh) |
op_collection_id |
ftnapieruniv |
language |
English |
topic |
Calcification photosynthesis Coral reefs carbonates algae reefs sea water lagoons 570 Life sciences biology QH301 Biology |
spellingShingle |
Calcification photosynthesis Coral reefs carbonates algae reefs sea water lagoons 570 Life sciences biology QH301 Biology Schubert, Nadine Diele, Karen Teichberg, Mirta Wild, Christian Enr�quez, Susana Meyer, Friedrich W. Effect of Inorganic and Organic Carbon Enrichments (DIC and DOC) on the Photosynthesis and Calcification Rates of Two Calcifying Green Algae from a Caribbean Reef Lagoon |
topic_facet |
Calcification photosynthesis Coral reefs carbonates algae reefs sea water lagoons 570 Life sciences biology QH301 Biology |
description |
Coral reefs worldwide are affected by increasing dissolved inorganic carbon (DIC) and organic carbon (DOC) concentrations due to ocean acidification (OA) and coastal eutrophication. These two stressors can occur simultaneously, particularly in near-shore reef environments with increasing anthropogenic pressure. However, experimental studies on how elevated DIC and DOC interact are scarce and fundamental to understanding potential synergistic effects and foreseeing future changes in coral reef function. Using an open mesocosm experiment, the present study investigated the impact of elevated DIC (pHNBS: 8.2 and 7.8; pCO2: 377 and 1076 μatm) and DOC (added as 833 μmol L-1 of glucose) on calcification and photosynthesis rates of two common calcifying green algae, Halimeda incrassata and Udotea flabellum, in a shallow reef environment. Our results revealed that under elevated DIC, algal photosynthesis decreased similarly for both species, but calcification was more affected in H. incrassata, which also showed carbonate dissolution rates. Elevated DOC reduced photosynthesis and calcification rates in H. incrassata, while in U. flabellum photosynthesis was unaffected and thalus calcification was severely impaired. The combined treatment showed an antagonistic effect of elevated DIC and DOC on the photosynthesis and calcification rates of H. incrassata, and an additive effect in U. flabellum. We conclude that the dominant sand dweller H. incrassata is more negatively affected by both DIC and DOC enrichments, but that their impact could be mitigated when they occur simultaneously. In contrast, U. flabellum can be less affected in coastal eutrophic waters by elevated DIC, but its contribution to reef carbonate sediment production could be further reduced. Accordingly, while the capacity of environmental eutrophication to exacerbate the impact of OA on algal-derived carbonate sand production seems to be species-specific, significant reductions can be expected under future OA scenarios, with important consequences for beach ... |
author2 |
Chen, Chaolun Allen |
format |
Article in Journal/Newspaper |
author |
Schubert, Nadine Diele, Karen Teichberg, Mirta Wild, Christian Enr�quez, Susana Meyer, Friedrich W. |
author_facet |
Schubert, Nadine Diele, Karen Teichberg, Mirta Wild, Christian Enr�quez, Susana Meyer, Friedrich W. |
author_sort |
Schubert, Nadine |
title |
Effect of Inorganic and Organic Carbon Enrichments (DIC and DOC) on the Photosynthesis and Calcification Rates of Two Calcifying Green Algae from a Caribbean Reef Lagoon |
title_short |
Effect of Inorganic and Organic Carbon Enrichments (DIC and DOC) on the Photosynthesis and Calcification Rates of Two Calcifying Green Algae from a Caribbean Reef Lagoon |
title_full |
Effect of Inorganic and Organic Carbon Enrichments (DIC and DOC) on the Photosynthesis and Calcification Rates of Two Calcifying Green Algae from a Caribbean Reef Lagoon |
title_fullStr |
Effect of Inorganic and Organic Carbon Enrichments (DIC and DOC) on the Photosynthesis and Calcification Rates of Two Calcifying Green Algae from a Caribbean Reef Lagoon |
title_full_unstemmed |
Effect of Inorganic and Organic Carbon Enrichments (DIC and DOC) on the Photosynthesis and Calcification Rates of Two Calcifying Green Algae from a Caribbean Reef Lagoon |
title_sort |
effect of inorganic and organic carbon enrichments (dic and doc) on the photosynthesis and calcification rates of two calcifying green algae from a caribbean reef lagoon |
publisher |
Public Library of Science |
publishDate |
2016 |
url |
https://doi.org/10.1371/journal.pone.0160268 https://napier-repository.worktribe.com/file/327142/1/Effect%20of%20inorganic%20and%20organic%20carbon%20enrichments. http://researchrepository.napier.ac.uk/Output/327142 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
http://researchrepository.napier.ac.uk/Output/327142 doi:https://doi.org/10.1371/journal.pone.0160268 https://napier-repository.worktribe.com/file/327142/1/Effect%20of%20inorganic%20and%20organic%20carbon%20enrichments. 1932-6203 10.1371/journal.pone.0160268 |
op_rights |
openAccess http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1371/journal.pone.0160268 |
container_title |
PLOS ONE |
container_volume |
11 |
container_issue |
8 |
container_start_page |
e0160268 |
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1800759158659612672 |