How does seagrass grow?
Seagrasses need light and nutrients to grow. Nutrients are obtained from sediment and water. They have the highest light requirements of all the submerged marine plants and cannot easily grow in murky water. They thrive in shallow coastal waters sheltered from wave action and strong currents which can erode their roots. Although they are normally found in shallow water they can grow at depths of 32 metres and have been found in clear water at 68 metres.
