First to be affected by ocean acidification?

I am a pteropod, known as the canary in the coal mine for ocean acidification. Scientists predict that I am among the first creatures to be affected by changes in ocean chemistry due to my fragile, aragonitic shell and high abundance in polar and sub-polar regions, where the impacts of ocean acidification first manifest. What change in me impacts other creatures that depend on me for food? What change in me impacts people? IPCC Reports.