More farms have existed during this time than are active now. 10 2 018 a) Salmon Scotland dataset ( – Oct 2025) Elevated mortality definition Elevated, recurring, Elevated, recurring – persistent – i.e. with i.e. without requirement for same cause requirement for same code cause code th 95 centile (worst 5% only) 24 farms 36 farms th 90 centile (worst 10% only) 79 farms 96 farms th 75 centile (worst 25% only) 117 farms 179 farms 2002 b) SEPA dataset ( – Oct 2025) Elevated mortality definition Elevated, recurring, Elevated, recurring – persistent – i.e. with i.e. without requirement for same cause requirement for same code cause code th 95 centile (worst 5% only) Not available 76 farms th 90 centile (worst 10% only) Not available 155 farms th 75 centile (worst 25% only) Not available 259 farms Lowering the threshold for percentage monthly mortality has a significant impact on the number of problem farms, while still applying all the other Scottish Government criteria. 79 farms For example, Table 2a shows that by including the worst 10% of mortality events, in the Salmon Scotland dataset since 2018 would be on the problem list, rather than 24 farms, at the th Government’s 95 centile threshold (only the worst 5%).