I think you read what you wanted.
What we have here are multiple studies at odds with one another, and the inability of the popular viewpoint to 'just dismiss' the challenging theory on the data.
In fact, it's looking more and more that the acidification studies have taken liberties with the data, and used conditions that are impossible.
E.g., flow rates that don't exist and cause issues for the fish, not CO2.
This is how peer review is supposed to work. Many of the 'doomsday' studies are getting challenged more and more as their theories and dates come to pass without the conditions predicted.
That's why even some of us who believe in man made global warming are tired of the doomsday theories, let lone the sole focus on only CO2. The lip service is getting old, along with the former oil lobbyists who are now the green economy pimps.