Published July 13, 2023 | Version v1

Data for: Increasing hypoxia on global coral reefs under ocean warming

Description

Ocean deoxygenation is predicted to threaten marine ecosystems globally. However, current and future oxygen concentrations and the occurrence of hypoxic events on coral reefs remain underexplored. Here, using autonomous sensor data to explore oxygen variability and hypoxia exposure at 32 representative reef sites, we reveal that hypoxia is already pervasive on many reefs. 84% of reefs experienced weak to moderate (≤153 to ≤92 μmol O2 kg-1) hypoxia and 13% experienced severe (≤61 μmol O2 kg-1) hypoxia. Under different climate change scenarios based on 4 Shared Socioeconomic Pathways (SSPs), we show that projected ocean warming and deoxygenation will increase the duration, intensity, and severity of hypoxia, with more than 94% and 31% of reefs experiencing weak to moderate and severe hypoxia, respectively, by 2100 under SSP5-8.5. This projected oxygen loss could have negative consequences for coral reef taxa due to the key role of oxygen in organism functioning and fitness.

Notes

The primary dataset is provided as an R data file and in CSV format for ease of access. All secondary datasets are provided in CSV format.

Funding provided by: National Science Foundation
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100000001
Award Number: OCE-1255042

Funding provided by: National Science Foundation
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100008982
Award Number: OCE-1829778

Funding provided by: University of California, San Diego
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100007911
Award Number: Marine Sciences Grant A105437

Funding provided by: National Science Foundation
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100000001
Award Number: Graduate Research Fellowship DGE-2038238

Funding provided by: Philanthropic Educational Organization
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100017777
Award Number: International Scholar Award

Funding provided by: National Oceanic and Atmospheric Administration
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100000192
Award Number: Coral Reef Conservation Program and NOAA Ocean Acidification Program, through the NOAA National Coral Reef Monitoring Program

Funding provided by: U.S. Geological Survey
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100000203
Award Number: Coastal and Marine Hazards and Resources Program funded data collection at Crocker Reef, Florida, USA

Funding provided by: Okinawa Institute of Science and Technology Graduate University
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100004199
Award Number:

Funding provided by: National Science Foundation
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100008982
Award Number: OCE-1538495

Funding provided by: National Science Foundation
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100008982
Award Number: OCE-1459255

Funding provided by: National Science Foundation
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100008982
Award Number: OPP-1723308

Funding provided by: Ministry of Science and Technology of Taiwan
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100004663
Award Number: 107-2611-M-019-001-MY3

Funding provided by: Bohn Family Foundation*
Crossref Funder Registry ID:
Award Number:

Funding provided by: Bill and Kathy Scripps Family Foundation*
Crossref Funder Registry ID:
Award Number:

Files

cmip6_sst_increase.csv

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