Tales of trucks laden with fresh seafood stuck en route from the UK to the Continent over the last few days have been less than uplifting. The latest Covid-related transport restrictions have given yet another kick to a sector that's suffered all manner of setbacks over the course of the pandemic. But they should also act as a timely reminder – both of the UK’s reluctance to eat its own produce and the insane complexities of the global seafood supply chain. Other than smoked salmon and the occasional oyster, locally-grown seafood has never been a big part of yuletide festivities in Britain. But, as the world prepares itself for another few months of disruption, many maritime countries should look into making more of the excellent seafood – both farmed and wild – that is struggling to reach markets further afield.