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. Bay of Holland 40.6% (Jan 25)
  2. Meall Mhor 40.2% (Jun 25)
  3. Muck 33.7% (Jul 25)
  4. Loch a Chairn Bhain 30.4% (Jan 25)
  5. Djubawick 29.4% (Jan 25)
  6. Etive 3 27.8% (Jul 25)
  7. Greshornish 25.2% (Jul 25)
  8. Kingairloch 24.6% (Jan 25)
  9. Strondoir Bay 24.6% (Apr 25)
  10. Dunstaffnage 24.2% (Jun 25)

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

Highest figures for July '25
  1. Muck 33.7%
  2. Etive 3 27.8%
  3. Greshornish 25.2%
  4. Rum 18.3%
  5. Kerrera B (Charlotte Bay) 12.8%
  6. Wyre 12.1%

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

Highest figures for July '25
  1. Ardessie B 24.4%
  2. Geasgill 20.4%
  3. Outer Bay 12.6%
  4. Leven 7.9%
  5. Gometra 7.2%
  6. Gob a Bharra 6.1%
  7. Stulaigh 5.5%
  8. Loch Hourn 4.8%
  9. Lismore West (B) 4.8%
  10. Kerrera B (Charlotte Bay) 4.3%

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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. Geasgill 66,371 deaths (07/07/25) ▼ Reason given: Viral Disease (PD)
  2. Geasgill 39,114 deaths (14/07/25) ▼ Reason given: Viral Disease (PD)
  3. Hellisay 31,642 deaths (07/04/25) ▼ Reason given: Losses post smolt transfer
  4. Geasgill 22,752 deaths (19/05/25) ▼ Reason given: Viral Disease (PD)
  5. Invertote Salmon Farm 21,347 deaths (10/02/25) ▼ Reason given: Freshwater Treatments AGD/ Thinning Populations/Harvesting/Handling/Seals (Pen 7)
  6. Ardintoul 19,342 deaths (03/03/25) ▼ Reason given: Physical damage due to smolt transfer and precocoius males
  7. Hellisay 18,337 deaths (14/04/25) ▼ Reason given: Losses post smolt transfer
  8. Kingairloch 17,264 deaths (03/03/25) ▼ Reason given: Physical damage due to smolt transfer
  9. Creag an T'Sagairt (Loch Hourn) 16,193 deaths (14/07/25) ▼ Reason given: Gill damage / jellyfish
  10. Geasgill 15,360 deaths (26/05/25) ▼ Reason given: Viral Disease (PD)

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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. Inchmore 210,135 deaths (05/05/25) ▼ Reason given: Fungus
  3. Applecross Smolt Unit 2 196,563 deaths (09/06/25) ▼ Reason given: Vaccination (Bacterial disease)
  4. Inverpolly 189,736 deaths (14/07/25) ▼ Reason given: Furunculosis
  5. Applecross Smolt Unit 182,967 deaths (12/05/25) ▼ Reason given: Smoltification
  6. Applecross Smolt Unit 2 180,891 deaths (02/06/25) ▼ Reason given: Vaccination (Bacterial disease)
  7. Applecross Smolt Unit 160,150 deaths (09/06/25) ▼ Reason given: Bacterial disease
  8. Couldoran Incubation Unit 134,446 deaths (14/04/25) ▼ Reason given: Water Quality
  9. Applecross Smolt Unit 117,735 deaths (23/06/25) ▼ Reason given: Bacterial disease
  10. Couldoran Hatchery 108,886 deaths (10/03/25) ▼ Reason given: Disease (Costia)

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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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