Seaweed is a vital part of marine ecosystems and serves as a food source for a variety of marine animals. Some of the primary consumers of seaweed include sea urchins, fish, crustaceans, and certain species of birds. Sea urchins, for example, graze on seaweed and can significantly impact seaweed populations if their numbers are too high. Fish like parrotfish and surgeonfish also feed on seaweed, helping to control its growth. Additionally, some crustaceans, such as crabs and lobsters, consume seaweed as part of their diet. In coastal areas, certain bird species, like the eider duck, also feed on seaweed. These animals play a crucial role in maintaining the balance of marine ecosystems by controlling seaweed growth and contributing to nutrient cycling.
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