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the claim

Coral reefs release more oxygen than they consume.

the verdict
CONTESTED PARTIAL
Recorded sources
1 source for · 4 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that coral reefs release more oxygen than they consume?

Partly. One item shows reef macroalgae release oxygen into the water during photosynthesis, while several others document oxygen consumption and hypoxia on reefs. None of the retrieved items provides a full net oxygen budget for a coral reef, so the claim is only partially addressed in both directions.

Verdict: CONTESTED PARTIAL · 1 source for, 4 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 1
Photosynthesis by marine algae produces sound, contributing to the daytime soundscape on coral reefs
2018
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Freeman, S. E., Freeman, L. A., Giorli, G., & Haas, A. F. (2018). Photosynthesis by marine algae produces sound, contributing to the daytime soundscape on coral reefs. doi.org. https://doi.org/10.1371/journal.pone.0201766

Evidence against · 4
Biophysical and physiological processes causing oxygen loss from coral reefs -
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Biophysical and physiological processes causing oxygen loss from coral reefs - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.7554/eLife.49114

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More against · 3
Data for: Increasing hypoxia on global coral reefs under ocean warming
2023
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Ariel, P., Travis, C., & Hannah, B. (2023). Data for: Increasing hypoxia on global coral reefs under ocean warming. zenodo.org. https://doi.org/10.5061/dryad.41ns1rnj7

Effects of ultraviolet radiation and nutrient level on the physiological response and organic matter release of the scleractinian coral Pocillopora damicornis following thermal stress
2018
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Effects of ultraviolet radiation and nutrient level on the physiological response and organic matter release of the scleractinian coral Pocillopora damicornis following thermal stress. (2018). hal.sorbonne-universite.fr. https://doi.org/10.1371/journal.pone.0205261

Survival under conditions of variable food availability: Resource utilization and storage in the cold‐water coral Lophelia pertusa
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Survival under conditions of variable food availability: Resource utilization and storage in the cold‐water coral Lophelia pertusa. (n.d.). cir.nii.ac.jp. https://doi.org/10.1002/lno.11142

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