Seagrass beds are underwater ecosystems formed by flowering plants that grow in shallow coastal waters. These plants, known as seagrasses, provide essential habitats for various marine species, including fish, crustaceans, and invertebrates. They play a crucial role in maintaining water quality by stabilizing sediments and absorbing nutrients. In addition to supporting marine life, seagrass beds help protect coastlines from erosion and serve as important carbon sinks, capturing carbon dioxide from the atmosphere. They are vital for the health of marine environments and contribute to the overall biodiversity of ocean ecosystems.