12 June 2019 | dataset

Coral calcifying fluid pH dictates response to ocean acidification

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License

Public
[Open Data]

Ocean acidification driven by rising levels of CO2 impairs calcification, threatening coral reef growth. Predicting how corals respond to CO2 requires a better understanding of how calcification is controlled. Here we show how spatial variations in the pH of the internal calcifying fluid (pHcf) in coral (Stylophora pistillata) colonies correlates with differential sensitivity of calcification to acidification. Coral apexes had the highest pHcf and experienced the smallest changes in pHcf in response to acidification. Lateral growth was associated with lower pHcf and greater changes with acidification. Calcification showed a pattern similar to pHcf, with lateral growth being more strongly affected by acidification than apical. Regulation of pHcf is therefore spatially variable within a coral and critical to determining the sensitivity of calcification to ocean acidification.

Field Value
Publisher Pacific Data Hub
Modified 02 September 2022
Release Date 12 June 2019
Source URL https://pacificdata.org/data/dataset/Holcomb2014
Identifier Holcomb2014
Relevant Countries
License Public
[Open Data]