Coral calcification under daily oxygen saturation and pH dynamics reveals the important role of oxygen
Coral reefs are essential to many nations, and are currently in global decline. Although climate models predict decreases in seawater pH (~0.3 units) and oxygen saturation (~5 percentage points), these are exceeded by the current daily pH and oxygen fluctuations on many reefs (pH 7.8-8.7 and 27-241%...
Published in: | Biology Open |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2014
|
Subjects: | |
Online Access: | https://research.wur.nl/en/publications/coral-calcification-under-daily-oxygen-saturation-and-ph-dynamics https://doi.org/10.1242/bio.20147922 |
id |
ftunivwagenin:oai:library.wur.nl:wurpubs/476891 |
---|---|
record_format |
openpolar |
spelling |
ftunivwagenin:oai:library.wur.nl:wurpubs/476891 2024-02-04T10:03:33+01:00 Coral calcification under daily oxygen saturation and pH dynamics reveals the important role of oxygen Wijgerde, T.H.M. Silva, C.I.F. Scherders, V. van Bleijswijk, J. Osinga, R. 2014 application/pdf https://research.wur.nl/en/publications/coral-calcification-under-daily-oxygen-saturation-and-ph-dynamics https://doi.org/10.1242/bio.20147922 en eng info:eu-repo/grantAgreement/EC/FP7/244161 https://edepot.wur.nl/317373 https://research.wur.nl/en/publications/coral-calcification-under-daily-oxygen-saturation-and-ph-dynamics doi:10.1242/bio.20147922 info:eu-repo/semantics/openAccess Wageningen University & Research Biology Open 3 (2014) 6 ISSN: 2046-6390 carbonate chemistry ecosystems galaxea-fascicularis impacts light ocean acidification photosynthesis reefs respiration scleractinian corals info:eu-repo/semantics/article Article/Letter to editor info:eu-repo/semantics/publishedVersion 2014 ftunivwagenin https://doi.org/10.1242/bio.20147922 2024-01-10T23:20:12Z Coral reefs are essential to many nations, and are currently in global decline. Although climate models predict decreases in seawater pH (~0.3 units) and oxygen saturation (~5 percentage points), these are exceeded by the current daily pH and oxygen fluctuations on many reefs (pH 7.8-8.7 and 27-241% O2 saturation). We investigated the effect of oxygen and pH fluctuations on coral calcification in the laboratory using the model species Acropora millepora. Light calcification rates were greatly enhanced (+178%) by increased seawater pH, but only at normoxia; hyperoxia completely negated this positive effect. Dark calcification rates were significantly inhibited (51-75%) at hypoxia, whereas pH had no effect. Our preliminary results suggest that within the current oxygen and pH range, oxygen has substantial control over coral growth, whereas the role of pH is limited. This has implications for reef formation in this era of rapid climate change, which is accompanied by a decrease in seawater oxygen saturation owing to higher water temperatures and coastal eutrophication. Article in Journal/Newspaper Ocean acidification Wageningen UR (University & Research Centre): Digital Library Biology Open 3 6 489 493 |
institution |
Open Polar |
collection |
Wageningen UR (University & Research Centre): Digital Library |
op_collection_id |
ftunivwagenin |
language |
English |
topic |
carbonate chemistry ecosystems galaxea-fascicularis impacts light ocean acidification photosynthesis reefs respiration scleractinian corals |
spellingShingle |
carbonate chemistry ecosystems galaxea-fascicularis impacts light ocean acidification photosynthesis reefs respiration scleractinian corals Wijgerde, T.H.M. Silva, C.I.F. Scherders, V. van Bleijswijk, J. Osinga, R. Coral calcification under daily oxygen saturation and pH dynamics reveals the important role of oxygen |
topic_facet |
carbonate chemistry ecosystems galaxea-fascicularis impacts light ocean acidification photosynthesis reefs respiration scleractinian corals |
description |
Coral reefs are essential to many nations, and are currently in global decline. Although climate models predict decreases in seawater pH (~0.3 units) and oxygen saturation (~5 percentage points), these are exceeded by the current daily pH and oxygen fluctuations on many reefs (pH 7.8-8.7 and 27-241% O2 saturation). We investigated the effect of oxygen and pH fluctuations on coral calcification in the laboratory using the model species Acropora millepora. Light calcification rates were greatly enhanced (+178%) by increased seawater pH, but only at normoxia; hyperoxia completely negated this positive effect. Dark calcification rates were significantly inhibited (51-75%) at hypoxia, whereas pH had no effect. Our preliminary results suggest that within the current oxygen and pH range, oxygen has substantial control over coral growth, whereas the role of pH is limited. This has implications for reef formation in this era of rapid climate change, which is accompanied by a decrease in seawater oxygen saturation owing to higher water temperatures and coastal eutrophication. |
format |
Article in Journal/Newspaper |
author |
Wijgerde, T.H.M. Silva, C.I.F. Scherders, V. van Bleijswijk, J. Osinga, R. |
author_facet |
Wijgerde, T.H.M. Silva, C.I.F. Scherders, V. van Bleijswijk, J. Osinga, R. |
author_sort |
Wijgerde, T.H.M. |
title |
Coral calcification under daily oxygen saturation and pH dynamics reveals the important role of oxygen |
title_short |
Coral calcification under daily oxygen saturation and pH dynamics reveals the important role of oxygen |
title_full |
Coral calcification under daily oxygen saturation and pH dynamics reveals the important role of oxygen |
title_fullStr |
Coral calcification under daily oxygen saturation and pH dynamics reveals the important role of oxygen |
title_full_unstemmed |
Coral calcification under daily oxygen saturation and pH dynamics reveals the important role of oxygen |
title_sort |
coral calcification under daily oxygen saturation and ph dynamics reveals the important role of oxygen |
publishDate |
2014 |
url |
https://research.wur.nl/en/publications/coral-calcification-under-daily-oxygen-saturation-and-ph-dynamics https://doi.org/10.1242/bio.20147922 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Biology Open 3 (2014) 6 ISSN: 2046-6390 |
op_relation |
info:eu-repo/grantAgreement/EC/FP7/244161 https://edepot.wur.nl/317373 https://research.wur.nl/en/publications/coral-calcification-under-daily-oxygen-saturation-and-ph-dynamics doi:10.1242/bio.20147922 |
op_rights |
info:eu-repo/semantics/openAccess Wageningen University & Research |
op_doi |
https://doi.org/10.1242/bio.20147922 |
container_title |
Biology Open |
container_volume |
3 |
container_issue |
6 |
container_start_page |
489 |
op_container_end_page |
493 |
_version_ |
1789971016374550528 |