Gigante Salmon's land-based flow-through aquaculture facility at Lille Indre Rosøy.
Photo: Gigante Salmon
Gigante Salmon has introduced a nanobubble-based oxygenation system at its production facility at Lille Indre Rosøy after testing the technology during periods of elevated oxygen demand.
The company said a pilot using Moleaer’s Freya system showed more stable dissolved oxygen levels and could be installed without major changes to existing infrastructure. Gigante Salmon has started integrating the systems during 2025 and plans to add further units as biomass and production volumes increase.
According to the companies, the trial showed that the system delivered more stable dissolved oxygen levels while allowing for flexible installation. Gigante Salmon said this made it possible to increase oxygenation capacity in line with rising biomass without major changes to existing infrastructure.
Gigante said it expects to begin harvesting a new generation of fish towards the end of the fourth quarter of 2025, with its full production facility scheduled to be operational by the second quarter of 2026. The company's flow-through aquaculture facility in Rodøy, just north of the Arctic Circle in northern Norway, is now in the final phase of construction, with two of three production basins completed. The company is aiming for a full annual capacity of 16,000 tonnes by 2028.
“Freya solved the oxygenation challenges we previously faced. It was a whole new world for us when we experienced the significant improvement in oxygen dissolution using nanobubble,” said Tore Laugsand, deputy chief executive of Gigante Salmon, in a press release.
“We have to say this was a necessity for our operating model, and Moleaer’s technology is definitely a contributor to achieving our production targets. The flexibility allows us to scale in line with our production needs,” Laugsand added.
Moleaer, which develops nanobubble technology for use in aquaculture applications including sea cages, holding tanks, hatcheries and RAS, as well as for emergency oxygenation, says nanobubbles are effective because they remain neutrally buoyant in water and improve oxygen transfer efficiency.
“Producers don’t typically have an oxygen supply problem but with oxygen dissolution,” said Inge Haarberg of Moleaer. “Freya addresses this by delivering oxygen where fish need it, with market-leading gas transfer efficiency to improve water quality while reducing oxygen and energy costs. This gives producers a more robust and cost-effective way to maintain stable DO levels as biomass increases.”
At the beginning of December, Gigante Salmon announced it plans to launch a private placement in the first quarter of 2026, aiming to raise NOK 150–300 million to support further development, including upgrades identified after the first production cycle and measures designed to improve both fish welfare and operational performance.
In November 2025, the company secured an additional NOK 100 million in financing from SpareBank1 Nord-Norge, and announced changes to its senior management team, with the appointment of Benny Hansen as its new Chief Financial Officer from 1 February 2026.