Commercial fishing at modern scale is not sustainable. Fish farming, especially for valuable species, still has a huge carbon footprint, requires a non trivial amount of agricultural land, and often uses wild-caught fish to feed the farm. So we're back to square one.
Not saying that the issues can't be solved, but pisciculture is not a free lunch from the sustainability point of view.
> Fish farming, especially for valuable species, still has a huge carbon footprint, requires a non trivial amount of agricultural land, and often uses wild-caught fish to feed the farm. So we're back to square one.
Isn't most of that only true for carnivorous or omnivorous fish? I knew there were problems with finding small fish to feed the bigger fish, but I was under the impression that herbivores and filter feeders could be raised sustainably. I.e. farming tuna would be extremely difficult and costly to the environment, but you can farm things like tilapia and catfish fairly sustainably.
They aren't fish that a lot of people are excited to eat, unfortunately.
My favorites are baitfish like herring and sardines does that change the sustainability? If not, should I just go back to beef, or is it at least better?
Not saying that the issues can't be solved, but pisciculture is not a free lunch from the sustainability point of view.