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One light per cage in salmon farming By reducing the number of light points in the cages, Nordlaks Oppdrett has less operational challenges, such as when the fish stock is treated against sea...

Efficient oxygen supply in tanks and closed cages is crucial during emergencies Modern onshore farms are operated with high fish density and low water consumption. Such productive systems are completely dependent on a...

Underwater lighting in smolt tanks improves appetite in sea cages Low light intensity in the deeper part of smolt tanks is a common problem.  Installed underwater lights have, however, efficiently improved the light...

Bio Marine and The Norwegian University of Life Sciences (NMBU) have monitored light conditions in some Norwegian smolt farms. The effects of different number and size of lamps placed above and below the...

For the Valencian eel producer, EU requirements demand several hundred thousand small eels are released each year. Strict requirements for emissions apply. For fish welfare oxygen levels are always maintained. The RAS plant...

By arranging underwater lights in a pentagon, smolt producer BioFish has succeeded in optimising the distribution of post-smolt in the tanks. Combined with a new feeding strategy, the result is higher growth of...

Several good options in growth light have become available. To compare practical use and results, SalMar will use different types of light throughout an entire growing season. The right light is important for...

For both fish welfare and for keeping visual contact with the fish, smolt farm Trøndersmolt chooses to continue with full underwater lighting to smolts with record-breaking growth. After testing different brands, they landed on...

As described in another article, almost all the oxygen that salmon and trout consume in closed floating cages must be added. Most such farms that are in operation add oxygen only by means of...

In today's cage systems, there is a lot of technical equipment that must be removed and reassembled when carrying out necessary operations in the cages, for example during lice treatment. These are time...

In order to maintain high production and good fish welfare in closed cages, in practice all the oxygen consumed by the fish must be added. Photo: BioMarine. Closed cages in the sea provide the...

Cages with deep lice skirts can achieve as good a growth environment as in open cages. Recent full-scale experiments with lifting deep water based on compressed air show that a good cage environment...