Sussex Wildlife Trust

The Sussex Kelp Recovery Story

By Kerry Williams: Communications Officer – Conservation, Sussex Wildlife Trust

Five years ago, the Sussex Kelp Recovery Project was born. The story starts with seaweed.

Kelp; a large brown seaweed, used to be plentiful off the Sussex coast. Imagine this forest of the deep, creating a habitat for marine wildlife. Black Sea Bream would dig and spawn in gravel nests. Blue Mussels would provide a grounding for the kelp to attach to, and engineer further resources for others, like Starfish and Plaice.

The chalk reef outcrops would writhe with life; scuttling Spider Crabs, swaying ethereal-looking Piddocks and the occasional fin-flap of an Undulate Ray. Seals would benefit from these supreme hunting grounds. From above, Gannets would spear the surface to take their fill of the abundant beneath-the-waves buffet. And so, safely and sustainably, could we.

In the 1980s things changed. Storms, marine heatwaves and poor water quality had a negative effect, and persistent damage has been caused by intensive trawling for commercial fishing. This indiscriminate practice decimated the biodiversity of the seabed. By the end of the century, 96% of Sussex kelp was lost, and with it, a whole ecosystem wiped out, in repeated, traumatic acts of destruction. All happening under the waves; beneath our noses, yet out of sight.

But some people did notice. Sussex IFCA formed a case for a Nearshore Trawling Byelaw, and production company Big Wave created Help our Kelp, a film narrated by Sir David Attenborough. Other organisations joined the fight, and a campaign of the same name was launched.

It worked. In March 2021, trawling was prohibited from 304 square kilometres of the Sussex coast. The byelaw is one of the largest in the UK. The collective became the Sussex Kelp Recovery Project; twelve organisations*, co-ordinated by Sussex Wildlife Trust, who have continued to monitor and advocate for the recovery of our seabed.

Benefits are underway; Black Sea Bream and Blue Mussels are on the increase. But nature takes time to recover. These five years have been focused on laying the groundwork to enable the steady return of these great forests and their inhabitants. Rewilding our ocean, piece by piece. With patience and collaboration, the story of our Sussex shores gets wilder each year. Although it started it all, really, kelp is just the beginning.

*Sussex Wildlife Trust, Blue Marine Foundation, Zoological Society of London, Queen Mary University of London, University of Brighton, Adur & Worthing Councils, Sussex Underwater, Big Wave Productions, Sussex IFCA, University of Exeter, University of Sussex