Ocean acidification modulates material flux linked with coral calcification and photosynthesis.

ABSTRACT: Coral reefs are essential for the foundation of marine ecosystems. However, ocean acidification (OA), driven by rising atmospheric carbon dioxide (CO₂) threatens coral growth and biological homeostasis. This study examines two Hawaiian coral species-Montipora capitata and Pocillopora acuta to elevated pCO₂ simulating OA. Utilizing pH and O₂ microsensors under controlled light and dark conditions, this work characterized interspecific concentration boundary layer (CBL) traits and quantified material fluxes under ambient and elevated pCO₂. The results of this study revealed that under increased pCO₂, P. acuta showed a significant reduction in dark proton efflux, followed by an increase in light O₂ flux, suggesting reduced calc

SUBMITTER: Armstrong DA 

PROVIDER: S-EPMC12789429 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature