Americans have gotten the seafood habit one year into the Covid pandemic and it’s not likely to change anytime soon.

In surveys, Grocery tracker Numerator found that new buyers of fresh seafood said they were 78% more likely to have formed a seafood habit. Fresh salmon was the biggest seller in March, boasting sales of $184 million.

In other good news for fresh, SeafoodSource reports that retailers continue to invest in a much  broader assortment. The average number of items per week per store increased from 42.2 in March 2020 to 43.2 in March of this year.

Fourteen percent of new frozen seafood buyers also said they’ve got the habit.  Frozen seafoods continued to dominate grocery sales last month, surging to $340 million.

But those who closely track food purchases say they are unsure if retail seafood sales will continue their significant growth, as more people get vaccinated and start moving out to school, work, vacations and gatherings with family and friends. That could shift more buying to foodservice, meaning companies that sell prepared meals to restaurants, school and hospital cafeterias, airlines and other outlets.

However, remote work continues at a high level and last month 44% said they will continue to do so, even after getting the Covid vaccine.

Also, 45 percent of younger school-aged children and 52 percent of teenagers are participating in virtual education only. That means a continuation of more at-home meals.

The Numerator survey also found American consumers were the most concerned about both health and finances, with 44%in the United States being the  “most-anxious” compared to 34 percent internationally.

The pandemic also is fueling concerns about sustainability.

Eighty percent of consumers internationally and 71%  in the US said they are more concerned about the environment, with 28% of Americans saying those concerns affect their purchasing decisions.