Fish health and welfare

Good fish health and welfare is both an ethical responsibility and the most important measure we can to do ensure good growth, higher harvesting quality and lower costs.



Good fish health implies that the highest possible number of fish is happy, grows normally and survives throughout the life cycle.


We have a preventative, systematic and long-term approach to fish health and welfare, doing what we can to ensure that our fish is robust, healthy and happy from early life. That will make the fish more able to cope with stress, parasites and other external influences, which reduces disease outbreaks and the need for medical treatments.


We collaborate with neighboring fish farmers to prevent and contain diseases.


In case sea lice treatments are needed, we must find the correct balance between the welfare of our fish, potential impact on the local environment and avoid parasite resistance to existing treatments.


We do our best to avoid using antibiotics in all forms. Head office must approve use of any antibiotics, to ensure that it is used only as a last resort.


Cleaner fish should have just as good health and welfare as our salmon.


Fish welfare efforts
  • Enough space for the fish in our facilities. For example, a regular sea water pen is 97.5 % water and 2.5 % fish biomass in Norway.
  • Procedures to avoid stressing the fish when possible, for example when handling, transporting or treating the fish.
  • Harvesting procedures in accordance with regulations to avoiding suffering. The fish is euthanized by stunning.
  • There are ongoing fish health and welfare training programs for all employees.
  • We are looking into implementing welfare indicators from the Fishwell project in our farming, a research project that compiled a manual for fish farmers on what indicators to use to assess farmed salmon welfare. Grieg Seafood participated in creating the manual.
Hygiene efforts
Monitoring and inspections
Additional efforts
Efforts to improve health and welfare of cleaner fish

Preventative efforts throughout the production cycle