What is Atlantic salmon farming?


To produce the highest quality Atlantic salmon, Grieg NL receives fertilized sterile Atlantic salmon eggs from Stofnfiskur in Iceland to the hatchery located in Marystown, NL. The eggs are then incubated in temperature controlled units until they hatch.

Once they hatch, the juvenile Atlantic salmon continue to grow and develop using the nutrients in their yolk sacs. The young Atlantic salmon are cared for in the hatchery in large freshwater tanks where they start to feed on nutrient rich dry pellets. Once they reach 5g they are moved into the smoltification facility.


During the time at the smoltification facility, the Atlantic salmon go through a natural process called smoltification. This is a physical change in the Atlantic salmon that enables them to live in salt water. When this process is complete the Atlantic salmon are cared for and held at the smoltification facility until they reach 50g.

Post Smolt

The Atlantic salmon are then moved into the post smolt facility where they are cared for and held in tanks until they reach the appropriate size to move out into the sea cage sites.

Grieg NL Nurseries is planning the worlds first salmon farm that is eliminating any negative impact or genetic pollution on wild Atlantic Salmon. The use of normal sterile Atlantic salmon eggs from Stofnfiskur will ensure the Atlantic salmon produced at our hatchery will not mature, cannot reproduce or mix with wild salmon. Stofnfiskur has a focus on Atlantic salmon that grow fast, are disease resistant with strong immune system and are accustomed to intensive culture so have lower stress levels in this culture conditions.


Click to Visit the AQUAMAOF website

The Atlantic salmon will be grown in a land based recirculating hatchery to a size up to 1.5 kg. Moving this portion of the operation to land and utilizing a recirculating system allows Grieg NL to optimize efficiencies and production while eliminating the environmental impacts often associated with other culture methods of water usage and discharge.


Three buildings, as represented to the right, are planned for the Marystown hatchery covering 250,000 ft2 located at the Marystown Marine Industrial Park. The technology used will employ 100% recirculation of water with no impact on the surrounding environment. AquaMaof’s patented systems not only reduces the amount of water required but its state of the art biosecurity systems and protocols will eliminate the entry of pathogens. As little as 300 L/min of water is required daily. With minimal water usage, there will be minimal water discharge to the surrounding environment, making this system a very environmentally friendly and sustainable option for culturing Atlantic salmon.