For your reference an example of the high number of reduction plants, for Pelagia, that take fish and reduce them to livestock and fish farm feed.
These are the Pelagia plants in Europe. There are many more companies in the process that take billions of killed forage fish to make into farmed salmon.
EWOS has six plants around the world: http://www.ewos.com/wps/wcm/connect/ewos-content-group/ewos-group/about-ewos/operations/.
On their site, this information:
"EWOS Group is comprised of six operating companies: EWOS Norway, EWOS Chile, EWOS Scotland, EWOS Canada, EWOS Vietnam, and EWOS Innovation.
EWOS central is the administration that links these companies together, forming a group.
We have production facilities and well-established market shares in all four major salmon producing regions. Operations in each region are run as independent companies led by a local managing director. Support services covering areas such as purchasing, production, sales and business development are coordinated centrally."
And they have been looking at GMO plants with genes for Omega 3s. See: http://www.ewos.com/wps/wcm/connect/02127cc3-edd7-4cce-9965-25eda4d5978d/Spotlight+2+2013.pdf?MOD=AJPERES.
See Page 8:
"Biotech companies and academic institutions that are currently developing genetically modified EPA+DHA oilseed plants include BASF/Cargill, CSIRO/NuSeed (Australia) and Dow/DSM on rapeseed, Dupont on soy and Rothamstead Research Institute (UK) on camelina, with some claiming substantial EPA+DHA levels already in their oil seed plants. Further development is needed and the
registration process can be long and expensive.
The time to commercialisation is uncertain, but CSIRO/Nuseed intends to conduct field trials starting in 2014 subject to regulatory approvals, with commercial launch of EPA+DHA rapeseed oil around 2018. BASF/Cargill estimate that their product will beavailable in 2020."
Judging by the problems Aquabounty is having with their GMO farmed salmon, I would bet this won't fly. But for those who are not happy with GMO foods, you will want to avoid farmed salmon.