Fish Mortality

Fish mortality is a key indicator to measure fish health and welfare throughout production cycles. It is also a key indicator of production performance and effciciency. For sustainability reporting purposes, we measure fish mortality using a 12 month rolling mortality rate; updated quarterly. Thus, mortality for any quarter acumulates the data corresponding to that particular quarter, and the previous three quarters.

 

 

12 months rolling mortality = total # of mortalities in sea last 12 months – total # of culled fish due to illness or similar and not in harvest figures x 100
closing # of fish in sea + total # of mortalities in last 12 months + total # harvested fish in last 12 months + total # of culled fish in sea

 

5.6%

Q1

7.4%

Q2

7.7%

Q3

2.6%

Q1

3.3%

Q2

4.3%

Q3

5.0%

Q4

3.5%

Q1

3.8%

Q2

3.3%

Q3

2.8%

Q4

2.1%

Q1

2.1%

Q2

2.7%

Q3

3.2%

Q4

22.1%

Q1

20.4%

Q2

19.0%

Q3

17.8%

Q4

3.3%

Q1

4.6%

Q2

4.8%

Q3

6.6%

Q4
  • Fish Mortality (%)