Answer: The given statement is False.
Explanation: Estuaries are very important for the aquatic ecosystem as it has a variety of species. They provide a critical habitat for most of the species that are valued economically.
The birds, animals, amphibians, fishes and other aquatic animals depends on the estuaries for breeding, live and feed.
The animals such as oysters make estuaries their permanent home.
Hence, marine life also depends on estuaries for their need and they are very important for the ecosystem.