Seagrass is a type of marine grass that grows in shallow ocean waters. It forms dense beds and meadows, providing important habitats for many species of fish, crustaceans, mollusks, and other organisms. Seagrasses also play an essential role in maintaining the health of our oceans by stabilizing sediments, filtering nutrients from the water, and absorbing carbon dioxide. They are a vital part of marine ecosystems and have significant economic value as well.