Chris Powers
ccpowers.bsky.social
Chris Powers
@ccpowers.bsky.social
Research Biologist at NOAA PEMAD | Researching eDNA, fisheries, and generally molecular ecology.

Views are my own
Overall, we found that these forams are pretty robust against coastal acidification, but there is a real risk of pushing conditions too far and increasing their susceptibility to dissolution!
July 10, 2025 at 11:07 AM
This likely results from the chamber formation mechanism, which involves maintaining internal pH by exporting protons. This acidifies the environment near the newest chamber. When the environment is already high-pCO2, the foram experiences a "tipping point" into under-saturation and dissolution!
July 10, 2025 at 11:06 AM
We found some exciting trends. In short, the most dramatic impacts of acidification were between live and dead tests, indicating that they are compensating for the acidification.

Even more interestingly, there are variations in the response by chamber (see attached chamber-by-chamber effect size)
July 10, 2025 at 11:02 AM
in this work, we looked at the chamber-by-chamber responses of a salt marsh foraminifera, to varying levels of coastal acidification, all the way down to pH 7.2!
July 10, 2025 at 10:58 AM
Me! I'm moving from studying protists to fish and now need to network from scratch 😭
November 25, 2024 at 2:53 AM