Average female lice per fish

Source

Salmon Scotland mortality

Source

Cumulative mortality over full production cycle

Leven Production cycle end date: Sep 2019
Total losses: 9.3 %

Leven Production cycle end date: Mar 2021
Total losses: 3.3 %

Leven Production cycle end date: May 2023
Total losses: 1.6 %

Leven Production cycle end date: Apr 2025
Total losses: 11 %

Source

Inspection reports

Case Number: 2021-0545

Download Dead haul harvests on site due to restricted access for wellboats.
Some wrasse movements onto site from Ireland.
Additional peaks of mortality:
Wrasse October 2021 7750 (mainly transport losses).
Lumpfish January 2021 6661 (mainly without diagnosis so with wounds/fin damage) , December 2020 4155 (handling/lice treatment, without diagnosis- fresh, wounds or fin damage), September 2020 6025 (mainly pseudomonas) August 2020 5752
(mainly handling but also pseudomonas)
Site manager was not available but assistant manager facilitated the inspection. [Original PDF]

Case Number: 2023-0539

Download Organic site
Lumpfish mortality - First input 26th of November - 6th of December. Mortality over period 533 fish across the whole site.
Fish ensiled on-site. Transported by Fergusons to Barkip
Fish are harvested by dead haul, due to wellboat access restrictions.
Site temperature used, as inspector's thermometer was unavailable.
VMD fish appeared healthy when opened.
Inspection carried out by , observed by . [Original PDF]

Case Number: 2024-0055

Download Site inspected following suspicion of BKD reported by operator. Signs consistent with BKD were observed by company vet during routine sampling conducted on 08/07/24.
No dead, moribund or abnormally behaving fish observed during inspection, therefore no fish removed for sampling. Fish were observed feeding well and shoaling as normal.
Site consists of 4 groups of 4 x 24m2 steel pens. Site uses environets, reportedly changing these every two weeks during summer months and every three weeks during other times of year. These were reported to be very effective at minimising growth on the nets.
Harvests on site are reportedly conducted by dead haul. There are no plans to split fish from site this cycle and site manager reported that at present the intention is to harvest the site by spring 2025 before restocking in 2025 Q4.
Mortalities on site have been at a consistent level, no recent increased mortality noted. There was a peak recorded in WK 10
2024 - attributed to tenacibaculum. [Original PDF]

Case Number: 2024-0264

Download Informed by company of suspicion of clinical BKD on site. Two fish sampled (out of 20) showed granulomatous lesions in the kidney (one with lesions on liver and spleen too). IDN to be placed and inspection carried out to confirm or rule out presence of clinical BKD. [Original PDF]

Case Number: 2025-0062

Download From mort reporting; week 4/3/24 440g 2.08% 11362 fish Moritella and Tenacibaculum. Florfenicol treatment in Feb 2024.
Reported lice levels 2025 wk1 0.14; wk2 0.15; wk3 0.34; wk4 0.56; wk5 0.63; wk6 0.91; wk7 0.36
Farm managements area M33 with Gorsten and Linnhe
Salmon mortality 2025 week 8 0.12% week 9 0.13% week 10 0.14% week 11 0.02%- attributed to seal predation.
Cleaner fish mortality zero recorded for last 4 weeks. Peaked weeks 45 and 44 of 2024 at 20.53% and 19.88% - no specific cause attributed.
Wrasse being removed at harvests and will be culled at the end if the cycle. Wrasse - both wild and farmed. Import from
Northern Ireland 21/9/24.
No chemical sea lice treatment have been used on site since gaining organic status about 6 years ago
Harvests are live and also dead haul.
Last lice treatment 5th and 6th Feb- Thermolicer. Lice counts currently suspended as fish are being harvested and organic status give withdrawal period of 140 degree day for tricaine use.
Site inspection and paperwork conducted by ; Audited by [Original PDF]

Source