Holyhead Port. Screengrab from Google Streetview. One of Anglesey’s major employers “is in danger of rapid decline,” a Holyhead councillor has claimed, warning over the potential impact of trade barriers with Ireland on the town’s port. Despite being the second busiest “roll-on roll-off” port in the UK, Cllr Bob Llewelyn Jones claimed that the disruption caused by the impending end of the Brexit transition period could see a “big reduction” in Irish Sea traffic travelling through Holyhead. With over 1,000 people said to be directly employed within the port and several more dependant on the supply chain, plans to enforce border controls on the Irish side from January 1 have led to the current situation being described as a “worrying time” for the town.