Sales of shelf-stable tuna at US retail outlets have returned to more normal levels seen at the beginning of the year before the start of the coronavirus pandemic, raising questions about the canned seafood sector's ability to retain new consumers gained over the last several months.

In March, as the coronavirus began to take hold in the United States, demand for shelf-stable tuna, salmon and other canned and pouched seafood surged as shoppers horded food and other consumer goods in response to lockdowns in cities across the country.