"The $300 million plan to farm salmon in the middle of the ocean"

From Bloomberg, July 31:

Three miles off Norway’s rugged coast, 1.5 million salmon swim in a 220-foot-high, football-field-long mass of floating mesh-wire frames and nets. This is Ocean Farm 1, the world’s first deep-sea aquaculture project, designed by leading salmon farmer SalMar ASA. The company paid China Shipbuilding Industry Corp. $300 million upfront for six facilities that offer more space than conventional shoreline farms (large nets in sheltered waters) while diffusing fish waste, allowing them to be packed in tighter.

How It Works
Oxygen sensors and high-definition cameras monitor the salmon for, among other things, growth and signs of illness. Midway through Ocean Farm 1’s yearlong trial run, SalMar says it’s seen strong growth and low mortality rates.

Sixteen movable, submerged valves disperse food at set times and allow fish to live at depths of up to 180 feet, rather than clustering them near the surface, as in other farms.

Next Steps 
SalMar plans to harvest the farm’s first generation of salmon in the second half of the year and says that if the development phase is successful, it’ll be possible to establish fish farming anywhere in the open sea....MORE