Environmental Protection Agency Narragansett Bay Commission University of Rhode Island Office of Marine Programs

Estuarine Science

Dissolved Oxygen

1. What is dissolved oxygen?
2. How do we measure dissolved oxygen?
3. How much dissolved oxygen is in Narragansett Bay?
4. What can we learn about Narragansett Bay by measuring dissolved oxygen?


3. How much dissolved oxygen is in Narragansett Bay?

The surface waters of Narragansett Bay are at or near dissolved oxygen saturation all the time. Wave and wind motion help get oxygen into the water from the air and phytoplankton produce oxygen in the water.

The bottom waters of Narragansett Bay are more variable. Bottom waters can become very low in oxygen when the conditions are right (see the "What is dissolved oxygen?" page). The bottom waters in parts of Narragansett Bay are sometimes hypoxic or anoxic. This mostly happens in the upper Bay.


1. What is dissolved oxygen?
2. How do we measure dissolved oxygen?
3. How much dissolved oxygen is in Narragansett Bay?
4. What can we learn about Narragansett Bay by measuring dissolved oxygen?

       


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