Coastal Services Center

National Oceanic and Atmospheric Administration

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What Is the Carrying Capacity of an MPA Community?


Carrying capacity can be described in three ways: environmental, social, and managerial.

Environmental carrying capacity addresses sustainable use of resources, such as how many fishermen can use a reef without depleting the fish populations.

Social carrying capacity is a measure of how many people are considered too many for a given area. For example, beachgoers might be happy to share the beach with 100 people but might leave if they arrived and 1,000 were present.

Managerial carrying capacity indicates that carrying capacity can differ depending on the amount and type of management applied. For example, by separating different user groups, a manager might increase the social carrying capacity of an area. With the removal or displacement of jet skis, other users might be able to tolerate a higher concentration of people.

How Can Knowing This Help Me?

Knowing how many people are tolerated in a given area and how people can use the area without depleting the resources can give managers an idea of what type of restrictions they need to implement to balance the users' interests with resource protection.

What Are Some Tools I Can Use?