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What are the effects of ocean acidification on marine life?

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Ocean acidification refers to the ongoing decrease in the pH levels of the Earth's oceans, primarily caused by the uptake of carbon dioxide from the atmosphere. This phenomenon can have various detrimental effects on marine life, such as:

  1. Impact on Shellfish: Ocean acidification makes it harder for shellfish like oysters, clams, and mussels to build and maintain their calcium carbonate shells and skeletons, affecting their growth and survival.

  2. Coral Bleaching: Corals are sensitive to changes in pH levels. Ocean acidification can weaken corals, making them more susceptible to coral bleaching, a condition where corals expel the algae living in their tissues, leading to their death.

  3. Disruption of Food Chains: Ocean acidification can disrupt marine food chains by affecting the ability of some species to form their shells or skeletons, which can have cascading effects on other species that rely on them for food.

  4. Fish Behavior: Some studies suggest that ocean acidification can impact the behavior of certain fish species, such as impairing their ability to detect predators or altering their sense of smell, which can ultimately affect their survival.

Overall, ocean acidification poses a significant threat to marine ecosystems and biodiversity, highlighting the urgent need to reduce carbon emissions and mitigate its impact on the world's oceans.

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