In other words, converting farmed carnivorous fish into herbivores may not make the tiniest fish in this food chain any less vulnerable. Nor does it replace the need for policy measures that ...

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! next ...

Farmed carnivorous fish eat multiple times more weight in wild fish caught from the ocean than is obtained by farming them, says Hayek. For instance, producing a kilogram of salmon may require 4 ...

That’s almost two fish in for every fish out, by weight. In some cases, it took as much as 3.16 kilograms of wild-caught fish to produce a single kilogram of salmon.