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. Loch a Chairn Bhain 30.4% (Jan 25)
  4. Djubawick 29.4% (Jan 25)
  5. Kingairloch 24.6% (Jan 25)
  6. Strondoir Bay 24.6% (Apr 25)
  7. Dunstaffnage 24.2% (Jun 25)
  8. Strone 24.2% (Feb 25)
  9. Maol Ban 23.6% (Apr 25)
  10. Hogan 23.3% (Apr 25)

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

Highest figures for June '25
  1. Meall Mhor 40.2%
  2. Dunstaffnage 24.2%
  3. Aird 23.1%
  4. Loch Laxford 20.5%
  5. Glenan Bay 19.4%
  6. Quarry Point 18.1%
  7. South West Shuna 15.6%
  8. Port Na Cro 15.1%
  9. Shuna 15.1%
  10. Burkwell 10.3%

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

Highest figures for June '25
  1. Ardessie B 12.7%
  2. Outer Bay 10.1%
  3. Sgeir Dughall 5.6%
  4. Geasgill 5.5%
  5. Leven 5.3%
  6. Ardmair 5.2%
  7. Shuna 5.0%
  8. Gometra 4.7%
  9. West Strome 3.8%
  10. Dunstaffnage 3.0%

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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. Hellisay 31,642 deaths (07/04/25) ▼ Reason given: Losses post smolt transfer
  2. Geasgill 22,752 deaths (19/05/25) ▼ Reason given: Viral Disease (PD)
  3. Invertote Salmon Farm 21,347 deaths (10/02/25) ▼ Reason given: Freshwater Treatments AGD/ Thinning Populations/Harvesting/Handling/Seals (Pen 7)
  4. Ardintoul 19,342 deaths (03/03/25) ▼ Reason given: Physical damage due to smolt transfer and precocoius males
  5. Hellisay 18,337 deaths (14/04/25) ▼ Reason given: Losses post smolt transfer
  6. Kingairloch 17,264 deaths (03/03/25) ▼ Reason given: Physical damage due to smolt transfer
  7. Geasgill 15,360 deaths (26/05/25) ▼ Reason given: Viral Disease (PD)
  8. Invertote Salmon Farm 13,753 deaths (03/02/25) ▼ Reason given: AGD/Harvest handling/Seal (Pens 7 in pen),8 & 9
  9. Linga (Setterness) 13,596 deaths (31/03/25) ▼ Reason given: Transfer related
  10. Culnacnoc Salmon Farm 13,152 deaths (03/02/25) ▼ Reason given: Freshwater Treatments/Handling /AGD

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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. Applecross Smolt Unit 182,967 deaths (12/05/25) ▼ Reason given: Smoltification
  5. Applecross Smolt Unit 2 180,891 deaths (02/06/25) ▼ Reason given: Vaccination (Bacterial disease)
  6. Applecross Smolt Unit 160,150 deaths (09/06/25) ▼ Reason given: Bacterial disease
  7. Couldoran Incubation Unit 134,446 deaths (14/04/25) ▼ Reason given: Water Quality
  8. Applecross Smolt Unit 117,735 deaths (23/06/25) ▼ Reason given: Bacterial disease
  9. Couldoran Hatchery 108,886 deaths (10/03/25) ▼ Reason given: Disease (Costia)
  10. Applecross Smolt Unit 84,724 deaths (05/05/25) ▼ Reason given: Smoltification

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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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