The Norwegians have developed an aquaculture industry worth a staggering $1.2 bn and are starting to apply some of their salmon farming experience to cod farming...

According to a recent report the North Sea's cod fishery is close to collapse and it appears likely that cod farming will become more and more important...

Although economically successful intensive salmon farming can have a number of undesirable environmental impacts. These include the escape of farmed fish, the introduction of parasites/diseases into wild populations and the build up of large amounts of pollution in the form of food or animal waste...

It remains to be seen how successful the emerging cod farming industry will be at dealing with these and other problems but it appears that they are already working on a number of interesting and innovative approaches... and groups such as WWF Norway will no doubt be keeping an eye on things...