Skip to main content
U.S. flag

An official website of the United States government

Healthy vs. unhealthy corals

Detailed Description

Underwater photograph off Molokaʻi Hawaiʻi, showing some of the impacts of land-based pollution, such as terrestrial sediment, on coral reefs: burial by sediment, algal overgrowth, and coral bleaching.

Sources/Usage

Public Domain.