My list of 70 on-land, closed, recirculating fish farms,
comprising more than 8000 actual fish farms, is at this link:
Even Norway is getting on the bandwagon of getting them out
of the water: http://www.thefishsite.com/fishnews/24701/nofima-to-host-centre-for-aquaculture-research
Norway, where the environmentally damaging in-ocean fish
farming of Atlantic salmon began, is looking at closed-containment. It pretty
much deletes diseases, lice, high mortality and escape issues and makes more
money by delivering fish more quickly.
As not having to pay for the sewage damage that in-ocean
closed fish farms is so large a part of the costs not borne by in-ocean farms
like Marine Harvest, Cermaq, and Grieg Seafoods today it is difficult to see
whether or if ever the companies actually will come out of the water. They
persistently refuse to come out of the water, and the highest cost they avoid
is the sewage they release.
The commonly accepted comparison of fish with human sewage
is that 10 fish equal the sewage of one human being. In Norway, Scotland, and
BC Canada, the sewage cost avoided is equal to all the sewage put out by the
entire population of humans.
Nevertheless, Nofima is one of 17 institutions chosen to
become host for Centres for Research based innovation. “A considerable part of
salmon production in the future will be carried out in closed-containment
systems on land or in semi-closed containment systems in the sea.” Since so
much mortality comes at smolting at 80 grams, the first benefit has shown that
holding them in on-land closed systems to 250 grams past the time of smolting,
lowers losses.
Their research phase is funded for 8 years at the present,
so it provides another decade of time for fish farm companies to refuse to come
out of the water. However, “the overall goal of the CtrlAQUA Centre is to
develop the technological and biological innovations that can lead to
closed-containment systems becoming a reliable and financially viable
technology.”
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