Data Dashboard

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

Salmon Scotland - Average mortality rate

Source

Salmon Scotland - Most deadly sites in 2025*

  1. East of Papa Little 69.0% (Nov 25)
  2. Sgeir Dughall 48.7% (Sep 25)
  3. Portree Outer 41.0% (Oct 25)
  4. Bay of Holland 40.6% (Jan 25)
  5. Meall Mhor 40.2% (Jun 25)
  6. Muck 33.7% (Jul 25)
  7. Lismore West (B) 31.2% (Aug 25)
  8. Loch Hourn 30.8% (Oct 25)
  9. Loch a Chairn Bhain 30.4% (Jan 25)
  10. Portree 29.9% (Oct 25)

* Highest Cumulative mortality over production cycle.
Source

Salmon Scotland - Production cycle mortality*

Highest figures for November '25
  1. East of Papa Little 69.0%
  2. Turness 27.4%
  3. East Mochlett 19.6%
  4. Scalpay 19.6%
  5. Maragay Mor 18.0%
  6. Quanterness 15.5%

* Highest Cumulative mortality over production cycle from sites reporting in November '25.
Source

Salmon Scotland - Monthly mortality

Highest figures for November '25
  1. East of Papa Little 66.3%
  2. Gob na Hoe 34.2%
  3. Badcall 32.2%
  4. Sian Bay 26.4%
  5. Loch a Chairn Bhain 25.2%
  6. Kingairloch 18.5%
  7. Tanera 17.5%
  8. Ardessie B 14.8%
  9. Coledeep 13.0%
  10. Seaforth 11.4%

Source

FHI Cumulative Mortality

Freshwater & seawater Source

FHI Cumulative Seawater Mortality

Source

FHI Cumulative Freshwater Mortality

Source

FHI Seawater Mortality

Source

FHI - Worst weekly mortality events 2025 (seawater)

  1. Gob na Hoe 247,000 deaths (27/10/25) ▼ Reason given: CGD/Jelly fish(muggia)
  2. Gob na Hoe 158,630 deaths (13/10/25) ▼ Reason given: CGD/Jelly fish(muggia)
  3. Gob na Hoe 133,524 deaths (20/10/25) ▼ Reason given: CGD/Jelly fish(muggia)
  4. Gob na Hoe 129,167 deaths (03/11/25) ▼ Reason given: CGD/Jelly fish(muggia)/AGD
  5. East of Papa Little 120,850 deaths (10/11/25) ▼ Reason given: Gill health related
  6. Portree 100,260 deaths (29/09/25) ▼ Reason given: Gill health related; Bacterial Disease
  7. Loch A Chairn Bhain 89,885 deaths (27/10/25) ▼ Reason given: Sea lice/Sea lice treatment/AGD
  8. Muck 86,964 deaths (13/10/25) ▼ Reason given: SRS
  9. Portree Outer 74,925 deaths (06/10/25) ▼ Reason given: Gill health related; Bacterial Disease
  10. Portree Outer 72,422 deaths (29/09/25) ▼ Reason given: Gill health related; Bacterial Disease

Source

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. Applecross Fry & Parr 2 (B2 & C2) 336,898 deaths (29/12/25) ▼ Reason given: Stock Incident
  4. Lochailort Recirculation Hatchery 314,759 deaths (18/08/25) ▼ Reason given: Fungus
  5. Inverkerry Smolt Unit 303,075 deaths (08/09/25) ▼ Reason given: Environmental challenge / bacterial gill disease.
  6. Lochailort Recirculation Hatchery 290,074 deaths (11/08/25) ▼ Reason given: Fungus
  7. Gob na Hoe 247,000 deaths (27/10/25) ▼ Reason given: CGD/Jelly fish(muggia)
  8. Inchmore 210,135 deaths (05/05/25) ▼ Reason given: Fungus
  9. Applecross Smolt Unit 2 196,563 deaths (09/06/25) ▼ Reason given: Vaccination (Bacterial disease)
  10. Inverpolly 189,736 deaths (14/07/25) ▼ Reason given: Furunculosis

Source

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.

Source