In terms of carbon sequestration seagrass is just as important as mangroves, sequestering in the order of 800 million metric tonnes of carbon dioxide every year. Sea grass is also a really important environment for a wide range of marine organisms, including calcium carbonate bryozoans. The organisms manufacture sand, so again really important to counter the effects of seawater level rise.
Anchor chain from motor and sailing vessel cause damage to the seagrass, the damage can yake decades to recover. We advocate the use of mooring buoys as opposed to anchoring. It is sad that some people steel the mooring buoys. Our work will be to inform the importance of mooring buoys to help protect the seabed for marine life and fish stocks.