Ocean acidification modulates material flux linked with coral calcification and photosynthesis
David A Armstrong, Conall McNicholl, Keisha D Bahr · 2025
Read Ocean acidification modulates material flux linked with coral calcification and photosynthesis by David A Armstrong, Conall McNicholl, Keisha D Bahr (2025) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-12789429.txt.
Description
David Armstrong and co-authors expose two Hawaiian corals to acidified water and watch their surface chemistry diverge. Their 2025 study uses pH and oxygen microsensors at the coral's boundary layer, the thin film where calcification and photosynthesis trade materials. One species is a branching Pocillopora, the other a mounding Montipora.
Under high carbon dioxide, the branching coral cut its dark proton outflow and raised its light oxygen flux, a signature of falling calcification alongside rising photosynthesis. The mounding coral showed no robust change in either measure. The authors' models link the boundary layer shifts to the underlying processes. Ocean acidification, in this telling, is not a uniform stress but a species-sorting one. Reef futures will be written by which corals hold their chemistry steady, and this study names one of each kind.
Catalog record
| CREATOR | David A Armstrong, Conall McNicholl, Keisha D Bahr |
|---|---|
| YEAR | 2025 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 47 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |