Sea lice

Each certified site shall make sea lice counts available monthly, and within seven days during sensitive periods.

Aquaculture Stewardship Council certification includes public reporting of certain environmental criteria which are particularly important for wild salmonids, including on-farm sea lice levels.

The ASC requirements include:

Testing must be weekly during and immediately prior to sensitive periods for wild salmonids, such as outmigration of wild juvenile salmon.

Frequent on-farm testing for sea lice, with test results made easily publicly available within seven days of testing

Frequent is defined as weekly during and immediately prior to sensitive periods for wild salmonids, such as outmigration of wild juvenile salmon. Testing must be at least monthly during the rest of the year, unless water temperature is so cold that it would jeopardize farmed fish health to test for lice (below 4 degrees C). 

In addition, the standard sets maximum on-farm lice levels during sensitive periods for wild fish in areas of wild salmonids. Sea lice counting is standard procedure in all the regions where we operate, and we count sea lice regularly in line with national regulations which may be stricter than the ASC requirements.

Cermaq Canada publishes sea lice levels for each of their sites irrespective of ASC certification.

Cermaq Norway publishes sea lice levels for ASC certified sites.

Cermaq Chile publishes sea lice levels for ASC certified sites (downloads).

Cermaq also publishes sea lice level at aggregated levels for all its operations in its quartely sustainability report.

Back to top