benthic organisms

Benthic organisms are creatures that live on, in, or near the bottom of aquatic environments like oceans, lakes, and rivers. They include a wide variety of animals such as worms, mollusks, crustaceans, and sea stars. These organisms play crucial roles in their ecosystems, helping to recycle nutrients, aerate sediments, and support the food chain. Because they live close to the substrate, they are often adapted to stable or sometimes harsh conditions on the ocean floor or lakebed. Understanding benthic organisms helps us learn about ecosystem health and the impacts of environmental changes.