Data Dashboard

All the latest data and charts from Fish Health Inspectorate and Salmon Scotland in one handy place.

Salmon Scotland - Average mortality rate

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Salmon Scotland - Most deadly sites in 2025*

  1. Sgeir Dughall 48.7% (Sep 25)
  2. Bay of Holland 40.6% (Jan 25)
  3. Meall Mhor 40.2% (Jun 25)
  4. Muck 33.7% (Jul 25)
  5. Lismore West (B) 31.2% (Aug 25)
  6. Loch a Chairn Bhain 30.4% (Jan 25)
  7. Djubawick 29.4% (Jan 25)
  8. Etive 3 27.8% (Jul 25)
  9. Greshornish 25.2% (Jul 25)
  10. Kingairloch 24.6% (Jan 25)

* Highest Cumulative mortality over production cycle.
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Salmon Scotland - Production cycle mortality*

Highest figures for September '25
  1. Sgeir Dughall 48.7%
  2. Wick of Vatsetter 12.6%
  3. Bastaness 11.6%
  4. Score Holms 7.4%

* Highest Cumulative mortality over production cycle from sites reporting in September '25.
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Salmon Scotland - Monthly mortality

Highest figures for September '25
  1. Portree 40.1%
  2. Outer Bay 32.6%
  3. Portree Outer 27.8%
  4. Vuia Mor 17.7%
  5. Stulaigh 15.6%
  6. Soay 11.5%
  7. Leven 10.1%
  8. North Sandwick 9.9%
  9. Westerbister 8.8%
  10. Loch Hourn 7.6%

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FHI Cumulative Mortality

Freshwater & seawater Source

FHI Cumulative Seawater Mortality

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FHI Cumulative Freshwater Mortality

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FHI Seawater Mortality

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FHI - Worst weekly mortality events 2025 (seawater)

  1. Portree 100,260 deaths (29/09/25) ▼ Reason given: Gill health related; Bacterial Disease
  2. Portree Outer 72,422 deaths (29/09/25) ▼ Reason given: Gill health related; Bacterial Disease
  3. Geasgill 66,371 deaths (07/07/25) ▼ Reason given: Viral Disease (PD)
  4. Portree Outer 64,851 deaths (15/09/25) ▼ Reason given: Gill health related
  5. Seaforth 49,274 deaths (29/09/25) ▼ Reason given: HSMI/Bacteria
  6. Portree 47,676 deaths (08/09/25) ▼ Reason given: Gill health related
  7. Portree 47,569 deaths (22/09/25) ▼ Reason given: Gill health related; Bacterial Disease
  8. Vuia Mor 47,159 deaths (22/09/25) ▼ Reason given: Gill health related
  9. Portree 44,223 deaths (01/09/25) ▼ Reason given: Gill health related
  10. Vuia Mor 43,243 deaths (15/09/25) ▼ Reason given: Gill health related

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FHI - Worst weekly mortality events 2025

  1. Applecross Smolt Unit 522,145 deaths (16/06/25) ▼ Reason given: Bacterial disease
  2. Inverkerry Smolt Unit 343,184 deaths (01/09/25) ▼ Reason given:
  3. Lochailort Recirculation Hatchery 314,759 deaths (18/08/25) ▼ Reason given: Fungus
  4. Inverkerry Smolt Unit 303,075 deaths (08/09/25) ▼ Reason given: Environmental challenge / bacterial gill disease.
  5. Lochailort Recirculation Hatchery 290,074 deaths (11/08/25) ▼ Reason given: Fungus
  6. Inchmore 210,135 deaths (05/05/25) ▼ Reason given: Fungus
  7. Applecross Smolt Unit 2 196,563 deaths (09/06/25) ▼ Reason given: Vaccination (Bacterial disease)
  8. Inverpolly 189,736 deaths (14/07/25) ▼ Reason given: Furunculosis
  9. Applecross Smolt Unit 182,967 deaths (12/05/25) ▼ Reason given: Smoltification
  10. Applecross Smolt Unit 2 180,891 deaths (02/06/25) ▼ Reason given: Vaccination (Bacterial disease)

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Number of aquaculture sites above CoGP lice threshold

Code of Good Practice suggests between February and Jun the threshold is lowered from an average of 1 to 0.5 adult female L. salmonis per fish during this period.

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