Average female lice per fish

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Salmon Scotland mortality

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Cumulative mortality over full production cycle

Bay of Holland Production cycle end date: Feb 2023
Total losses: 13 %

Bay of Holland Production cycle end date: Feb 2024
Total losses: 28.9 %

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Inspection reports

Case Number: 2021-0468

Download Paperwork - Mortality and sea lice conducted remotely on 04/11/21. Site is within DMA 8B, but is not within a CoGP FMA, however it is included in the FMAg for O2 - between SSF and CAS.
Treatment records, health reports and movement records inspected during site inspection on 10/11/21
Site has poles for top nets rather than the central support, these were reported to work well at the site and cope better with large motion through the site. Also planning to fit these to the Mill Bay site.
Fish will be split to the Mill Bay site at beginning of 2022 after it has undergone fallow period. With fish at both sites being grown to harvest. All dead haul harvests at site. Bay of Holland has a smaller tonnage than Mill Bay, so may have been used as a nursery site, however, for this cycle some fish will be grown to harvest.
Mortality removal conducted using ROV, this was reported to work well.
Mortalities very low on site, no issues noted or observed. Fish removed for VMD appeared in very good condition with no sea lice.
A thermolicer treatment was conducted in early October, this reportedly gave a very good clearance
Site uses an Aquascale to measure weights of fish, this was reported to be very accurate and removes the need to handle fish for sample weighing, used especially on run up to harvests.
Currently 11 x 100m cages on site, grid has capacity for 16 x 100m cages.
No dead, moribund or lethargic fish observed during the inspection, CAS were training two new members of their health team whilst conducting gill scores. Mortality removal was also on-going during the inspection, using an ROV which goes between
Westray, Stronsay and Rousay sites, mortalities were very low.
Weather conditions were poor on site at time of inspection, with winds gusting to force 7 and a large swell >1m going through the cages at the southern end of site. Fish were deep in the water.
Site is currently organic and no medicinal treatments have been used for sea lice. Only treatments T.M.S. for lice counts/gill scores. [Original PDF]

Case Number: 2024-0091

Download Fish were split down from Bay of Cleat site (FS1080) into Bay of Holland and Mill Bay in Wk16 2024. Fish originated from
Holmwrangler, Carlisle. SW to SW RA available for inspection. Mix of Stofinfisker and Aquagens on site. Both stocks were reported to be performing well at Bay of Cleat prior to transfer in recent weeks. The pre-transfer health check noted mild environmental damage to gills and some minor bleeding from the gills, but fish appeared healthy otherwise.
Previous crop that were on site were hydroliced in June, August and September 2023 and thermoliced in July 23. No medicinal treatments were conducted since the last inspection, other than anaesthetic use for sea lice counts.
Fish are vaccinated against IPN and Furunculosis.
Site will be deadhaul harvested to Kirkwall.
CoGP FMA is not fallowed synchronously. RA available for this.
The general population of fish on site appeared in good health and were actively shoaling in the cages, although were difficult to observe as they were sitting deep in the water. Feed was used to bring the fish up for closer inspection. A small number of lethargic fish were observed across the site, but no other clinical signs were observed so no diagnostic samples were taken on this occasion.
Fish sampled for VMD had a strong feed response, appeared healthy externally and no gross pathology was observed.
Paperwork inspected remotely on 02/05/24. Site inspection completed on 08/05/24. Inspection completed by and shadowed by . [Original PDF]

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