Eutrophication causes a decrease in the amount of oxygen available to aquatic life.
What is Eutrophication?
Eutrophication sets off an ecosystem chain reaction starting with algae and vegetation in abundance. This lowers the pH of seawater, a process known as ocean acidification.
Eutrophication occurs when nutrients are abundant, and visible algal blooms grow densely. Eventually, these algae die and decompose, absorbing oxygen and reducing oxygen levels in the water. Eutrophication can also lead to a shift in species composition towards faster-growing algal species and from long-lived macroalgae to more wild species.
Thus, Eutrophication causes a decrease in the amount of oxygen available to aquatic life.
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