Coral reef carbonate accretion rates track stable gradients in seawater carbonate chemistry across the U.S. Pacific Islands
The U.S. Pacific Islands span a dramatic natural gradient in climate and oceanographic conditions, and benthic community states vary significantly across the region’s coral reefs. Here we leverage a decade of integrated ecosystem monitoring data from American Samoa, the Mariana Archipelago, the main...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2022-11-01
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| Series: | Frontiers in Marine Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2022.991685/full |
| _version_ | 1828126630033227776 |
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| author | Hannah C. Barkley Thomas A. Oliver Ariel A. Halperin Ariel A. Halperin Noah V. Pomeroy Noah V. Pomeroy Joy N. Smith Joy N. Smith Rebecca M. Weible Rebecca M. Weible Charles W. Young Charles W. Young Courtney S. Couch Courtney S. Couch Russell E. Brainard Russell E. Brainard Jennifer C. Samson |
| author_facet | Hannah C. Barkley Thomas A. Oliver Ariel A. Halperin Ariel A. Halperin Noah V. Pomeroy Noah V. Pomeroy Joy N. Smith Joy N. Smith Rebecca M. Weible Rebecca M. Weible Charles W. Young Charles W. Young Courtney S. Couch Courtney S. Couch Russell E. Brainard Russell E. Brainard Jennifer C. Samson |
| author_sort | Hannah C. Barkley |
| collection | DOAJ |
| description | The U.S. Pacific Islands span a dramatic natural gradient in climate and oceanographic conditions, and benthic community states vary significantly across the region’s coral reefs. Here we leverage a decade of integrated ecosystem monitoring data from American Samoa, the Mariana Archipelago, the main and Northwestern Hawaiian Islands, and the U.S. Pacific Remote Island Areas to evaluate coral reef community structure and reef processes across a strong natural gradient in pH and aragonite saturation state (Ωar). We assess spatial patterns and temporal trends in carbonate chemistry measured in situ at 37 islands and atolls between 2010 and 2019, and evaluate the relationship between long-term mean Ωar and benthic community cover and composition (benthic cover, coral genera, coral morphology) and reef process (net calcium carbonate accretion rates). We find that net carbonate accretion rates demonstrate significant sensitivity to declining Ωar, while most benthic ecological metrics show fewer direct responses to lower-Ωar conditions. These results indicate that metrics of coral reef net carbonate accretion provide a critical tool for monitoring the long-term impacts of ocean acidification that may not be visible by assessing benthic cover and composition alone. The perspectives gained from our long-term, in situ, and co-located coral reef environmental and ecological data sets provide unique insights into effective monitoring practices to identify potential for reef resilience to future ocean acidification and inform effective ecosystem-based management strategies under 21st century global change. |
| first_indexed | 2024-04-11T15:38:47Z |
| format | Article |
| id | doaj.art-038dbe7a248e4450b6543f4153a33d35 |
| institution | Directory Open Access Journal |
| issn | 2296-7745 |
| language | English |
| last_indexed | 2024-04-11T15:38:47Z |
| publishDate | 2022-11-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj.art-038dbe7a248e4450b6543f4153a33d352022-12-22T04:15:53ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452022-11-01910.3389/fmars.2022.991685991685Coral reef carbonate accretion rates track stable gradients in seawater carbonate chemistry across the U.S. Pacific IslandsHannah C. Barkley0Thomas A. Oliver1Ariel A. Halperin2Ariel A. Halperin3Noah V. Pomeroy4Noah V. Pomeroy5Joy N. Smith6Joy N. Smith7Rebecca M. Weible8Rebecca M. Weible9Charles W. Young10Charles W. Young11Courtney S. Couch12Courtney S. Couch13Russell E. Brainard14Russell E. Brainard15Jennifer C. Samson16National Oceanic and Atmospheric Administration (NOAA) Pacific Islands Fisheries Science Center, National Marine Fisheries Service, Honolulu, HI, United StatesNational Oceanic and Atmospheric Administration (NOAA) Pacific Islands Fisheries Science Center, National Marine Fisheries Service, Honolulu, HI, United StatesNational Oceanic and Atmospheric Administration (NOAA) Pacific Islands Fisheries Science Center, National Marine Fisheries Service, Honolulu, HI, United StatesCooperative Institute for Marine and Atmospheric Research, University of Hawai’i, Honolulu, HI, United StatesNational Oceanic and Atmospheric Administration (NOAA) Pacific Islands Fisheries Science Center, National Marine Fisheries Service, Honolulu, HI, United StatesCooperative Institute for Marine and Atmospheric Research, University of Hawai’i, Honolulu, HI, United StatesNational Oceanic and Atmospheric Administration (NOAA) Pacific Islands Fisheries Science Center, National Marine Fisheries Service, Honolulu, HI, United StatesCooperative Institute for Marine and Atmospheric Research, University of Hawai’i, Honolulu, HI, United StatesNational Oceanic and Atmospheric Administration (NOAA) Pacific Islands Fisheries Science Center, National Marine Fisheries Service, Honolulu, HI, United StatesCooperative Institute for Marine and Atmospheric Research, University of Hawai’i, Honolulu, HI, United StatesCooperative Institute for Marine and Atmospheric Research, University of Hawai’i, Honolulu, HI, United StatesPacific Islands Ocean Observing System, University of Hawai’i, Honolulu, HI, United StatesNational Oceanic and Atmospheric Administration (NOAA) Pacific Islands Fisheries Science Center, National Marine Fisheries Service, Honolulu, HI, United StatesCooperative Institute for Marine and Atmospheric Research, University of Hawai’i, Honolulu, HI, United StatesNational Oceanic and Atmospheric Administration (NOAA) Pacific Islands Fisheries Science Center, National Marine Fisheries Service, Honolulu, HI, United StatesRed Sea Research Center, King Abdullah University of Science & Technology, Thuwal, Saudi ArabiaNational Oceanic and Atmospheric Administration (NOAA) Pacific Islands Fisheries Science Center, National Marine Fisheries Service, Honolulu, HI, United StatesThe U.S. Pacific Islands span a dramatic natural gradient in climate and oceanographic conditions, and benthic community states vary significantly across the region’s coral reefs. Here we leverage a decade of integrated ecosystem monitoring data from American Samoa, the Mariana Archipelago, the main and Northwestern Hawaiian Islands, and the U.S. Pacific Remote Island Areas to evaluate coral reef community structure and reef processes across a strong natural gradient in pH and aragonite saturation state (Ωar). We assess spatial patterns and temporal trends in carbonate chemistry measured in situ at 37 islands and atolls between 2010 and 2019, and evaluate the relationship between long-term mean Ωar and benthic community cover and composition (benthic cover, coral genera, coral morphology) and reef process (net calcium carbonate accretion rates). We find that net carbonate accretion rates demonstrate significant sensitivity to declining Ωar, while most benthic ecological metrics show fewer direct responses to lower-Ωar conditions. These results indicate that metrics of coral reef net carbonate accretion provide a critical tool for monitoring the long-term impacts of ocean acidification that may not be visible by assessing benthic cover and composition alone. The perspectives gained from our long-term, in situ, and co-located coral reef environmental and ecological data sets provide unique insights into effective monitoring practices to identify potential for reef resilience to future ocean acidification and inform effective ecosystem-based management strategies under 21st century global change.https://www.frontiersin.org/articles/10.3389/fmars.2022.991685/fullcoral reefscarbonate chemistryocean acidificationcarbonate accretionU.S. Pacificclimate change |
| spellingShingle | Hannah C. Barkley Thomas A. Oliver Ariel A. Halperin Ariel A. Halperin Noah V. Pomeroy Noah V. Pomeroy Joy N. Smith Joy N. Smith Rebecca M. Weible Rebecca M. Weible Charles W. Young Charles W. Young Courtney S. Couch Courtney S. Couch Russell E. Brainard Russell E. Brainard Jennifer C. Samson Coral reef carbonate accretion rates track stable gradients in seawater carbonate chemistry across the U.S. Pacific Islands Frontiers in Marine Science coral reefs carbonate chemistry ocean acidification carbonate accretion U.S. Pacific climate change |
| title | Coral reef carbonate accretion rates track stable gradients in seawater carbonate chemistry across the U.S. Pacific Islands |
| title_full | Coral reef carbonate accretion rates track stable gradients in seawater carbonate chemistry across the U.S. Pacific Islands |
| title_fullStr | Coral reef carbonate accretion rates track stable gradients in seawater carbonate chemistry across the U.S. Pacific Islands |
| title_full_unstemmed | Coral reef carbonate accretion rates track stable gradients in seawater carbonate chemistry across the U.S. Pacific Islands |
| title_short | Coral reef carbonate accretion rates track stable gradients in seawater carbonate chemistry across the U.S. Pacific Islands |
| title_sort | coral reef carbonate accretion rates track stable gradients in seawater carbonate chemistry across the u s pacific islands |
| topic | coral reefs carbonate chemistry ocean acidification carbonate accretion U.S. Pacific climate change |
| url | https://www.frontiersin.org/articles/10.3389/fmars.2022.991685/full |
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