Puuhonua o Honaunau and Kaloko-Honokohau National Historical Parks, carbon dioxide as a tool to manage invasive fish in anchialine pools, field pH levels during treatment, 2021-2022

This data release includes metadata and tabular data that documents changes in pH of anchialine pool water before, during and after diffusion of carbon dioxide (CO2) gas. These results are part of a study testing the efficacy of CO2 as tool for eradicating invasive fish from anchialine pools. The trials were conducted at Puuhonua o Honaunau National Historical Park and Kaloko-Honokohau National Historical Park, Hawaii, during 2021-2022.