The top surface of this pier at Salarie corner in Belle Greve Bay, which was completely clean of seaweed in April 2003 is covered on 9 March 2004 by an under-layer of green seaweed and a thick top layer of spiral or flat wrack, Fucus spiralis.
The fronds of the spiral wrack are up to 18 inches long.
This seaweed growth is one indication of the phenomenal productivity of Belle Greve Bay.
Spiral wrack is a seaweed that thrives on sheltered shores.
It grows near the top of the shore but below the band of channelled wrack, Pelvetia caniculata, which is the seaweed most suited to the upper shore because it tolerates desiccation.