Cultivated salmon

Not sure about the terminology in English here, but I refer to fish that is cultivated rather than wild. The salmon babies are held in huge dams, they are fed fish-food, they grow and when large enough killed, packed in containers, transported by huge trawlers, sold to customers in foreign countries to finally end up on a plate. 11 millions meals per DAY is produced only in Norway. I saw one of these conscience programs again, as you may have guessed. The surprising thing is that "everybody" so far have been very much in favour of cultivating fish in order to preserve our oceans. Through a team of investigative reporters the research showed that wild fish is used to produce the fish-food fed to the cultivated fish, and so far so good. The fish-food salesman in Iceland thought so too. He took one fistful of fish-food, smelled it and claimed "the smell of money". Only then the reporters showed that up to 2,5 kg's of wild fish that is becoming fish-food, ends up being a mere 1 kg of the cultivated salmon ending up on our plates! Sounds like a good idea to you? The program also showed 7 fish sorts that are now on the way to being extinct due to "over-fishing", and that the whole eco balance is out of whack because of it. Bigger fish lose their smaller fish to eat, the smaller fish gets fished out so to speak, the even smaller grow in population and the whole thing gets out of balance. It is very hard these days to know which fish one can eat with good conscience!