Average female lice per fish

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Salmon Scotland mortality

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Cumulative mortality over full production cycle

Production cycle end date: Dec 2019
Total losses: 16.6 %

Production cycle end date: Aug 2021
Total losses: 17.3 %

Production cycle end date: Aug 2023
Total losses: 6.5 %

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Inspection reports

Case Number: 2021-0051

Download Paperwork completed remotely on 14/05/21 by
Site inspection by , shadowed by , VMD sampling by
Site uses Environets, changing approximately every 14 days, with the net hanging out of water, this was reported to be effective at eliminating the requirement for net wash on site although more labour intensive during the changing process. Nets were very clean, visibility very good, approx. 40 lethargic fish across site observed deeper in the water. Site has had CMS, but not losing high numbers.
Site currently undergoing FW treatments, reported to be giving very good clearances, this was clearly observed in cages already treated, where shoaling fish had no visible sea lice. Have two tarps within Loch Harport, but also have access to fresh water tarps further north in Skye maintained by another operator. FW treatments are being administered for 12 hours, so only treating one cage per day.
One fish removed from cage 6, hanging vertically. One fish observed nearer the centre of cage 10 below the surface spiralling.
Fish sampled for VMD appeared in very good condition.
Site stocked with Lumpfish, and both farmed and wild wrasse. Site undertook a trial where three cages were stocked with only wild wrasse, with the remaining 9 being stocked with farmed wrasse (4,440 Ballan (Farmed and Wild) and 4,368 Corkwing
Wrasse(Wild)) , those stocked with wild wrasse were reported to have had fewer sea lice interventions. Site recently completed their Organic audit and are now operating under the Organic standard. [Original PDF]

Case Number: 2023-0180

Download Paramove (Hydrogen Peroxide) treatments 10th, 14th and 15th May 2023. Deltamethrin treatment 23rd and 24th April 2023 to bring caligus numbers down.
Health report from 24/04/2023. No significant findings - slight PGD (only a few fish)
Above mortality threshold 2021 Wks 30,31 and 32 - 4.18%, 5.05% and 3.51%. Wk 38 - 1.2% all due to jellyfish.
2022 Wks 36, 37, 38 and 39 - 1.66%, 2.94%, 3.57% and 1.2% all due to jellyfish
Last 4 weeks Cleanerfish mortality - LUM: Wk 16 - 1.98% (1088), Wk 17 - 1.73% (930), Wk 18 - 1.01% (536) and Wk 19 -
1.08% (566)
Large increased in lumpfish mortality in 2022 weeks 31, 32 and 33 - 7.62%, 12.32% and 9.27% due to handling for lice treatments (freshwater) and tenacibaculum.
Increased mortality in wrasse in 2022 weeks 31, 32 and 33 - 5.27%, 7.32% and 11.97% due to handling for lice treatments
(freshwater)
During the inspection of the site a small handful of lethargic looking fish were observed however all swam off quickly when approached. All other fish on site were swimming deep and had a good feed response therefore no diagnostic was carried out.
When VMD fish were sampled all appeared healthy externally and internally.
Paperwork, site inspection and VMD samples completed by , Inspector competency audit conducted by . [Original PDF]

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