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Acidification‐induced changes in neurological function have been documented in several tropical marine fishes. Here, we investigate whether similar patterns of neurological impacts are observed in a temperate Pacific fish that naturally experiences regular and often large shifts in environmental pH/pCO2. In two laboratory experiments, we tested the effect of acidification, as well as pH/pCO2variability, on gene expression in the brain tissue of a common temperate kelp forest/estuarine fish,Embiotoca jacksoni. Experiment 1 employed static pH treatments (target pH = 7.85/7.30), while Experiment 2 incorporated two variable treatments that oscillated around corresponding static treatments with the same mean (target pH = 7.85/7.70) in an eight‐day cycle (amplitude ± 0.15). We found that patterns of global gene expression differed across pH level treatments. Additionally, we identified differential expression of specific genes and enrichment of specific gene sets (GSEA) in comparisons of static pH treatments and in comparisons of static and variable pH treatments of the same mean pH. Importantly, we found that pH/pCO2variability decreased the number of differentially expressed genes detected between high and low pH treatments, and that interindividual variability in gene expression was greater in variable treatments than static treatments. These results provide important confirmation of neurological impacts of acidification in a temperate fish species and, critically, that natural environmental variability may mediate the impacts of ocean acidification.
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This content will become publicly available on November 7, 2025
Mixed quantum/classical theory for rotationally inelastic scattering of identical collision partners revised
When the tested system is artificially forced to follow the same collision path in indistinguishable and distinguishable treatments, all the differences between the results of the two treatments disappear.
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- Award ID(s):
- 2102465
- PAR ID:
- 10586797
- Publisher / Repository:
- Royal Society of Chemistry, UK
- Date Published:
- Journal Name:
- Physical Chemistry Chemical Physics
- Volume:
- 26
- Issue:
- 43
- ISSN:
- 1463-9076
- Page Range / eLocation ID:
- 27567 to 27582
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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