Investigating the opportunities for Rathlin rope on the island’s seaweed farm, Islander Kelp

Design Fellow: Katherine Drury
Co-Investigator: Prof Alison Gault

Challenge

Wool across the UK and Ireland is so undervalued that it is often uneconomical to remove from farms, particularly on Rathlin Island. At the same time, there are few sustainable, natural-fibre rope alternatives available for seaweed farming.

Approach

Building on trials in Loch Snart involving Sustainable Rope (SR), the anchorage system and deployment will be co-designed by the seaweed company and SR. Wool ropes will be produced and tested to ISO 2062 standards for breaking force and elongation, ensuring robustness under commercial seaweed farming conditions.

Outcomes

Outputs include insights into the Rathlin seaweed farming environment, conditions, and timelines awarded to Islander Kelp. Opportunities to trial wool rope will be identified, alongside anchorage requirements and rope specifications. These findings will inform development of a new commercial outlet for Rathlin island wool.

Learnings

Each seaweed farm in the UK is unique, with Rathlin presenting specific challenges. Collaboration with local farmers is essential to apply research effectively. Ensuring methods support rather than compromise commercial success will encourage adoption of natural fibres within this emerging sector.

Impact

This project offers a novel route to add value to Rathlin’s wool by transforming it into a commercially viable rope for seaweed farming. Returning this product to the island will generate economic benefit for farmers, inspire community pride, and open new markets through wider awareness and visitor engagement.