LOCH RYAN, SCOTLAND – SEPTEMBER 20: Rob Lamont dredges Scotland’s last wild native oyster fishery from the 1970s Clyde built trawler the ‘Vital Spark’ on September 20,2017 in Loch Ryan, Scotland. The two men, who have known each other for thirty years, farm for the wild shellfish seven days a week between September and April. The catch is predominantly sold to the top restaurants in London. (Photo by Jeff J Mitchell/Getty Images)