How Does Acidification Impact Fish Populations?

The impact of ocean acidification on marine ecosystems extends beyond its effects on calcareous plankton, as it can also significantly influence fish, marine mammals, and seabird species. Ocean acidification, caused by increased levels of carbon dioxide in the atmosphere, leads to a decrease in the population of calcareous plankton, which are essential as a primary food source for many marine organisms. As a result, fish, marine mammals, and seabirds that rely on these plankton for sustenance may experience reduced abundance and potential disruptions in their respective food chains. This interconnected web of effects highlights the broader ecological consequences of ocean acidification. This information was reported on September 19, 2018.

Ocean acidification, often likened to the “osteoporosis of the sea” for good reason, poses a significant threat to aquatic life and even human health. This phenomenon occurs when the ocean absorbs excessive carbon dioxide from the atmosphere, resulting in a decrease in the pH of seawater. This change in pH has profound consequences for marine organisms, particularly those that rely on minerals to construct their shells and skeletons. Oysters, clams, lobsters, shrimp, and the delicate ecosystems of coral reefs are among the most vulnerable to these deteriorating conditions. Notably, the acidification process erodes the very minerals these creatures depend on for their protective structures, weakening their ability to thrive. Furthermore, it’s not just aquatic life at risk; the repercussions extend to human health, amplifying concerns surrounding this critical issue.