Seagrasses: Biology, Ecology and Conservation - Google Books

https://books.google.de/books?id=quMJfqMSFGAC&pg=PA10#v=onepage

Seagrasses are unique plants; the only group of flowering plants to recolonise the sea. They occur on every continental margin, except Antarctica, and form ecosystems which have important roles in fisheries, fish nursery grounds, prawn fisheries, habitat…