Retail giant Walmart, one of the world's largest purchasers of seafood, has named a new top executive to run its fresh fish and seafood buying operations across the United States.

Bentonville, Arkansas-based Walmart, which boasts over 4,700 stores across the country, has hired former Orca Bay Seafoods and Sysco executive John Steinmetz as its senior buyer for fresh seafood, a role that oversees all of Walmart's fresh seafood purchases across the country, IntraFish has confirmed.