Southwick Reef - made of artificial rockpools and sea wall tiles - is installed in West Sussex.

Artificial habitats installed at a harbour have led to a “massive increase” in marine life, according to the project’s leader.

Large cubes, vertical rockpools and sea wall tiles were installed at Shoreham Port in West Sussex as part of Southwick Reef, which publicly launched on Wednesday.

Port director of engineering Brian Rousell told the BBC several reef cubes had been in place for about 12 weeks and were already collecting algae.