Answer: "Seafood Watch identifies seafood that has been harvested in a sustainable manner and promotes this seafood over varieties that were not sustainably harvested. The idea is that only the fishermen utilizing sustainable practices are rewarded financially and will therefore outcompete their competitors. The theory goes that over a long period of time, only fishermen using sustainable practices will remain in business."
this is a direct copy from the possible answer, you may want to alter it slightly
