What is shallow water seaweed?

Shallow water seaweed refers to various species of marine macroalgae that grow in coastal areas typically less than 30 meters deep, where sunlight can penetrate. These seaweeds play a crucial role in marine ecosystems by providing habitat and food for marine life, stabilizing sediments, and contributing to primary production. Common types include kelp, seagrasses, and green, red, and brown algae. They are also important for human uses, such as in food, cosmetics, and biofuels.