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Responsible farmed salmonids in marine pens? Norwegian aquaculture industry environmental impact of salmon farming disease control with focus on salmon lice. Ketil Rykhus One Health Consultants. Tuesday 29 April 2014 Hilton Reykjavik Nordica. On the agenda today. Norwegian aquaculture
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Responsible farmed salmonids in marine pens? • Norwegian aquaculture industry • environmental impact of salmon farming • disease control with focus on salmon lice Ketil Rykhus One Health Consultants Tuesday 29 April 2014 Hilton Reykjavik Nordica
On the agenda today Norwegian aquaculture Environmental impact of salmon farming Salmon lice - challenges and control
On the agenda today Norwegian aquaculture Environmental impact of salmon farming Salmon lice - challenges and control
The Norwegian coastline Coast line 25 168 km 1 752 km
18 areas >100 zones App. 1 400 sites approved App. 550 sites with fish App. 4 000 cages
Bodøpeninnsula Region Area Zone Hustadvika
On the agenda today Norwegian aquaculture Environmental impact of salmon farming Salmon lice - challenges and control
Legislation § 1 ScopeThe regulation shall promote the aquaculture industry’s profitability and competitive advantage within the framework of sustainable development and value generation. Regulation on operation of aquaculture farms
Legislation § 35Environmental monitoring • NS 9410:2007 – Environmental monitoring of benthic impact from marine fish farms • Trend monitoring of the benthic conditions underneath marine farms (“B-sampling”) • Carried out by an independent institution • First time when the biomass peaks and subsequent sampling in accordance with NS 9410 • Report the results to the Directorate of Fisheries (regional office) Regulation on operation of aquaculture farms
Legislation § 36 Measures in case of an unacceptable environmental condition • Increase the number of samples underneath the farm “increased B-sampling” • Optional (CA and Environmental Authority consideration)additional sampling underneath the farm and in the adjacent seabed area (“C-sampling”) • In cases of unacceptable conditions following increased sampling: fallowing until favourable situation re-established Regulation on operation of aquaculture farms
Obligatory parameters • Fauna (animals > 1 mm) • Chemical • TOC (Total Organic Carbon) • Phosphorus (P) • Zink (Zn) • Copper (Cu) • Particle size (clay, sand, silt, gravel) • Oxygen content • Salinity • Temperature NS 9410:2007
Legislation § 67 CA measures in case of an unacceptable environmental condition • Official controls by two Directorates; Directorate of fisheries and Norwegian Food Control Authority • §§ 35 and 36; the Directorate of Fisheries • Actions (according to Law on aquaculture): • Imposition to remedy the situation (fallowing) • Coercive measure • Fee • Confiscation of dividend • Imprisonment for up to 1 year Regulation on operation of aquaculture farms
On the agenda today Norwegian aquaculture Environmental impact of salmon farming Salmon lice - challenges and control
Legislation and Competent Authority One regulation for the whole country One local regulation for the Hardangerfjord area CA – Norwegian Food Control Authority Risk based inspections Coercive measure (until levels below limit) Impose forced slaughtering
National project initiated autumn 2009 Main objectives Strategy Targets
Main objectives: Keep the amount of salmon lice in aquaculture as low as possible in order to minimise the negative effects on wild fish and fish in aquaculture, at the same time as the salmon lice are sensitive to available medicines.
Strategy In order to achieve these objectives the following main points constitute the overall strategy: Identifying most adequate geographical sea locations. Establishing adequate zones for fallowing. Controlling the amount of salmon lice in cages by means of biological and/or mechanical measures only. Coordinating the combat of increasing levels of salmon lice through intensified biological and mechanical de-lousing measures and, if necessary, by using medicines in accordance with agreed criteria.
Targets • Interruption of production should not be caused by salmon lice • Salmon lice should not hamper further expansion of the industry • Adequate medicines should be available • Production (including harvesting) of cleaner fish should be sustainable • The legislation should be adequate • Communicate results • Establish national database • Prevent unacceptable influence on wild salmon and sea trout • The whole industry should participate and contribute • Identify new and monitor relevant R&D projects • Establish guides to good practice
Salmon lice in a lice shell - adult females before and now
What has improved during the salmon lice project? • Increased focus on lice counting, number of salmon lice and treatments • The use of closed tarpaulins for medicated treatments • Development and use of guidelines • The use of cleaner fish • Exchange of information • lusedata.no
Main challenges • Sea lice sensitivity and resistance against drugs • More efficient, more accurate and more animal welfare-friendly methods for counting early stages (chalimus and mobile) of salmon lice • Wild smolt migration period determining the coordinatedmedicated spring campaigns • Progress in developing non-medicated alternatives • Commercialization and utilization of new measures
Focusahead New methods for counting sea lice Proaktiv treatment strategy Non-medicated control Optimising all operations The importance of continued low levels of salmon lice External communication
Thank you for your attention! Photo: FHL