Herbivorous Fish Farming & Mollusk Aquaculture
How does farming herbivorous fish and shellfish actually increase the world protein supply?
Thankfully there are some forms of aquaculture that create a net gain of protein and help alleviate the fishing pressure on ocean fish. Unlike carnivorous fish, which need a fish-based food supply, herbivores can be fed a diet based on plant materials while shellfish simply filter the surrounding water for their nutrients!