It is part of the Ocean Conservation Trust’s Blue Meadows programme across the south coast to protect seagrass ecosystems.
The trust said seagrasses could store “vast amounts of carbon”, support a diversity of marine life, and help to stabilise our coastlines.
It is estimated about 40% of the UK’s seagrass has been lost since the 1940s. Pollution, and disturbance from anchoring, bottom trawling and dredging and coastal development have all contributed to its decline, the trust said.
Looe Harbour Commissioner Dave Bond said protecting the seagrass was “essential to the long-term health of our marine environment.”
