The inaugural harvest of genetically modified salmon began this week after the pandemic delayed the sale of the first such altered animal to be cleared for human consumption in the United States, company officials said.

Several tons of salmon, engineered by biotech company AquaBounty Technologies Inc., will now head to restaurants and away-from-home dining services—where labeling as genetically engineered is not required—in the Midwest and along the East Coast, company CEO Sylvia Wulf said.

Thus far, the only customer to announce it is selling the salmon is Samuels and Son Seafood, a Philadelphia-based seafood distributor.

AquaBounty has raised its faster-growing salmon at an indoor aquaculture farm in Albany, Indiana. The fish are genetically modified to grow twice as fast as wild salmon, reaching market size—8 to 12 pounds (3.6 to 5.4 kilograms)—in 18 months rather than 36.