Or eat aquacultured fish from your region. For example from an aquaponic system. But there are few viable commercial operations on the market so far.
Sustainable, low emission recirculating aquaculture comes at a price. It is not yet clear whether customers are willing to pay the premium for products from a good solution.
The goal is to reduce it to a minimum.
Not all fishmeal is unsustainable. The slaughtering residue from wild catch and from aquaculture as well as the bycatch are ressources for fish feed that we should not waste.