Buy it or cook it yourself
Almost every country in the world has fish as a major food source. Fish as a food source has a history thousands of years old.
Ancient Romans, Vikings, and Pilgrims that colonized America ate fish.
All of the immigrants that came to America brought recipes for fish from Ireland, France, Italy, England, China, Spain, Portugal, Germany, Greece and hundreds more.
Over the thousands of years of fish as food catching fish included hand gathering, spearing, netting, angling, and trapping.