Yes. When the algae begin to die, most sink to the bottom of the Bay, where the process of decomposition takes oxygen from the water. All animals need oxygen to live, so when oxygen levels get low, fish swim away if they can. Aquatic animals that cannot move such as oysters may die if oxygen levels get too low. In fact, during the summer, most of the water deeper than 30 feet has no oxygen and cannot support any aquatic life. To learn more, visit our Harmful Algae Bloom area.
For more information about the Chesapeake Bay, please email us.
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