Date lodged: 2 June 2017
To ask the Scottish Government how many dead fish the approximately 41,000 tonnes of salmon farm mortalities reported on the Scotland’s Aquaculture database for the periods 2015 and 2016 represents.
Answered by: Fergus Ewing 13 June 2017
The mortality data on Scotland’s Aquaculture website represents data reported to the Scottish Environment Protection Agency (SEPA) as required by conditions in licences issued under the Water Environment (Controlled Activities) (Scotland) Regulations 2011. The data is based on the weight of fish mortalities. Farmed salmon held in sea cages may typically vary in weight from 0.1- 5kg as they grow to market size. It is not possible to estimate the number of fish which may have died based on reported tonnage as mortality may have occurred when the fish were at any stage in the growth cycle.