Sea lettuce has a broad, fairly tough, crumpled frond (like a leaf) that is almost transparent. The individual fronds can be up to 30cm wide. It appears bright to light green in colour.
Sea Lettuce is a green seaweed that is found in shallow water on the coastal margin.
The large surface area of the fronds allows the plant to photosynthesise effectively. The tough fronds also help to prevent water loss through transpiration. This is very important given the very dry environment in which it lives.
Producer - The sea lettuce uses sunlight and water to produce food via a process called photosynthesis.
Rising sea levels represent a big threat to coastal habitats and species. Within the National Park saline lagoons and salt marshes are particularly vulnerable to sea level rise and could be lost completely. Litter is also a big problem on the coast.
Why not take part in ‘Beachwatch’ litter pick events - these are held every autumn by the Marine Conservation Society.