It’s a hard life for exposed cages but fish fare well
AQUALINE sales manager Hans Olav Ruo said the company was seeing more suppliers to the aquaculture industry attending the show as more seafood is farmed.
The company’s Midguard system, introduced in 2015, has been a success, and having been tested for four years, it has proved the concept of high energy sites.
A complete net cage system, it is described by the company as escape-proof, and has been installed all over the world.
Ruo said 90 per cent of the cages they supply in Norway are Midguard, many of them fitted with electric powered instead of hydraulic winches, so the sinker tube on the bigger nets can be lifted more efficiently and more safely.
Aqualine is also in discussion with a salmon farmer in Australia, where they have a problem with sealions.
‘We have supplied Midguards with double nets,’ said Ruo, ‘and are in discussion with Tassal for double nets for their huge cages.’
In Scotland, sales of the Midguard system are going well, with the company supplying 50 nets since January.
For the more exposed sites, they use the same materials but there are ‘always improvements in the details’.
‘There is a lot of maintenance, the cages live a very hard life, there is always movement and they need to be maintained,’ said Ruo.
There is a big difference in the lifespan of the cages, depending on where they are, and inshore cages have a ‘luxury life’ compared to pens on high energy sites. But the quality of fish has been very good. In Orkney, a further three full Midguard systems have been sold to Cooke Aquaculture for its trial farm at East Skelwick, which already had two Midgaurds.