site user(s):

Marine Energy Engineering Centre of Excellence & Pembrokeshire Beach Food Company

technology tested:

4 different mooring line rope types in total were tested, both natural & man-made, with 3 replicates of each to ensure confidence in the findings.

12 systems in total were deployed using a seabed anchor, single riser (made of 1 of the 4 rope types) and a yellow marker buoy. ​

sites used:

Dale Roadsprovided adequate depth, exposure and a suitable ecosystem for this experiment​.

duration of deployment:

12 months from January 2023 to January 2024.

​test aims:

To investigate how different mooring line materials support species colonisation and to assess the growth of local seaweed and other species on these materials.​

​test outcome:

The deployment found successful evidence of seaweed growth on all types of rope and demonstrated natural fibre ropes degrading at a faster rate.​