HESY Aquaculture merits an article on its world wide Recirculating Aquuaculture Systems. It supplies turn key operations to more than 200 on-land systems in the world: http://www.hesy.com/home/.
HESY is system 140 of the systems I have found around the world comprising almost 20,000 on land fish farms around the world. See: http://fishfarmnews.blogspot.ca/2012/01/key-document-34-mostly-on-land-closed.html.
There is no reason anymore for in-ocean Norwegian-style fish farms that use the ocean as a free, open sewer, adding to climate change. See: http://www.hesy.com/aquaculture-products/recirculation-aquaculture-system/.
20 species raised so far, fresh and salt fish:
|Murray Cod||Yellowtail Kingfish|