Cer­maq closed cages ‘will beat lice’

Fish Farmer - - European News -

NOR­WE­GIAN com­pany Cer­maq has ap­plied for 13 devel­op­ment li­cences for a float­ing closed con­tain­ment sys­tem.

Flex­iFarm is based on flow-through tech­nol­ogy that will treat in­flow wa­ter for all in­fec­tions be­fore en­ter­ing the sys­tem.

The goal, said Cer­maq, is to re­duce losses in sea pro­duc­tion, pro­tect the en­vi­ron­ment against un­de­sired im­pacts, in­crease pro­duc­tiv­ity, and at the same time

re­duce pro­duc­tion costs.

When de­vel­oped, Flex­iFarm can be used

at more than 80 per cent of the ex­ist­ing sites in Nor­way, de­pend­ing on the max-

imum wave heights.

Mag­nus Sten­dal, gen­eral man­ager at Bot­ngaard Sys­tem, a part­ner in the project, said: ‘It is a ma­jor goal for the devel­op­ment of Flex­iFarm that in­vest­ment and op­er­a­tion costs will re­main low, and that the an­tic­i­pated ef­fect will en­sure that pro­duc­tion cost per kg salmon is re­duced.’

In­com­ing wa­ter will first be fil­tered and then treated by UV-light to pre­vent the in­take of lice, al­gae, bac­te­ria, and viruses.

Har­ald Takle, Cer­maq’s R&D tech­nol­ogy man­ager, said: ‘The most se­vere chal­lenge for Nor­we­gian salmon farm­ing is the losses dur­ing pro­duc­tion in the sea, which is mainly due to pathogens and treat­ments against sea lice.

‘By treat­ing the in­flow of wa­ter for all pathogens and lice we will be able to dra­mat­i­cally re­duce the losses of fish.

‘We have suc­ceeded in de­sign­ing a so­lu­tion which ad­dresses both the bi­o­log­i­cal and en­vi­ron­men­tal chal­lenges in the in­dus­try.’

Above: Float­ing closed con­tain­ment sys­tem based on flow-through tech­nol­ogy

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