I'm not sure what you mean with "there is no sustainable industrial fishing"? If you look at e.g. Norway, fishing has been industrialized literally since the By

I'm not sure what you mean with "there is no sustainable industrial fishing"? If you look at e.g. Norway, fishing has been industrialized literally since the Byzantine empire was around. While there was indeed a crisis with overfishing in the post-war period, today it is a well-regulated and sustainable industry with quotas set on the basis of scientific measurements of the population sizes of different species. So it seems to be unambiguously possible?