Sea lice can be a big problem for some fish. Here’s how the ASC helps to ensure the problem is effectively managed

Sea lice are parasites that can affect the health and welfare of farmed fish, particularly salmon. These tiny crustaceans are naturally found on marine fish, and feed on the skin and blood of the fish.

Sea lice can be a problem for farms where salmon gather closely together in one location, making it easier for the lice to spread. There is also a risk that those lice could impact the health of wild salmonpopulations, if they are migrating nearby.

How we help
Anglers and wild salmon/sea trout fisheries are concerned about issues which can impact wild populations, such as sea lice – and this is why the ASC Salmon Standard requires salmon farmers to collaborate with NGOs, academics and governments to measure possible impacts on wild stocks.

The ASC’s current Salmon Standard – uniquely among certification programmes for farmed seafood – demands regular and frequent sea lice monitoring and measurements, transparency/publication of the data/findings, and collaboration with neighbouring farms.

If you want to read more about the specific indicators/requirements and other information contained within any of the ASC species standards, we encourage you to download the standards in which you are interested. All of ASC’s 11-species Standards can be found on this page.

Support responsible farmers: Look for the logo!
If, like us, you want to only shop and eat seafood products that have been produced with care by responsible farmers, simply look out for the ASC logo when you shop and eat out. And if it’s not there – ask why not! 

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