Salmon and trout farm­ers unite in lice fight

Fish Farmer - - United Kingdom News -

SCOT­LAND’S lead­ing salmon and trout pro­duc­ers have united in a bid to ex­tend the us­age and ef­fi­cacy of two of the most en­vi­ron­men­tally friendly sea lice treat­ments.

Farm­ers cur­rently treat against sea lice – a key bar­rier to growth in the in­dus­try – by bathing the fish ei­ther in fresh­wa­ter or hy­dro­gen per­ox­ide, which quickly breaks down into wa­ter and oxy­gen.

Now, Marine Har­vest Scot­land and Dawn­fresh Seafoods will look at what hap­pens when fresh­wa­ter and the hy­dro­gen per­ox­ide based treat­ment Paramove are com­bined.

The project, with Solvay In­terox, Aqua Pharma and Stir­ling’s In­sti­tute of Aqua­cul­ture - co-funded by the Scot­tish Aqua-

cul­ture In­no­va­tion Cen­tre (SAIC), aims to achieve even bet­ter con­trol of sea lice, re­duced use of medicines and shorter treat­ment times – all of which will fur­ther en­hance fish health

and wel­fare, and help de­liver higher pro­duc­tion vol­umes.

Richard Hopewell, fish health man­ager for Dawn­fresh Seafoods and lead in­dus­try part­ner, said: ‘This is early stage,

in­ves­tiga­tive work be­ing con­ducted within con­trolled tanks at the Marine En­vi­ron­men­tal Re­search Lab­o­ra­tory, part of the Univer­sity of Stir­ling’s In­sti­tute of Aqua­cul­ture, based at Machri­han­ish.

‘There, we hope to con­firm the ef­fi­cacy of us­ing fresh­wa­ter and Paramove in con­junc­tion with one an­other and, in do­ing so, con­trib­ute to the on­go­ing ef­forts of the in­dus­try in sea lice con­trol.’

SAIC CEO Heather Jones said: ‘This project has the po­ten­tial to be par­tic­u­larly ground break­ing. Not only does it see salmon and trout pro­duc­ers unite against a key chal­lenge, but if it suc­ceeds in de­liv­er­ing a more ef­fec­tive sea lice con­trol us­ing avail­able, en­vi­ron­men­tally friendly re­sources then the en­tire sec­tor stands to make huge com­mer­cial gains in the drive to grow Scot­land’s mar­ket share.’

It is thought that the 12-month, £242,985 project could lead to fur­ther col­lab­o­ra­tion be­tween salmon and trout pro­duc­ers to es­tab­lish the ther­a­peu­tic value of other ap­proved sea lice treat­ments at low salin­i­ties.

Above: Project aims to achieve bet­ter con­trol of sea lice

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