Site Details: Mill Bay
Hatston
Kirkwall, Orkney
KW15 1RG
Water type: Seawater
Cumulative mortality over full production cycle
Production cycle end date: Jan 2022
Total losses: 7.1 %
Production cycle end date: Jan 2023
Total losses: 13.5 %
Production cycle end date: Dec 2023
Total losses: 25.3 %
Fish Health Inspectorate mortality
28/11/22-04/12/22
1,834
2.35%
31/07/23-06/08/23
3,523
1.43%
04/09/23-10/09/23
2,810
1.17%
25/09/23-01/10/23
4,121
1.75%
02/10/23-08/10/23
9,917
4.55%
09/10/23-15/10/23
3,152
1.86%
16/10/23-22/10/23
1,891
1.24%
30/10/23-05/11/23
2,623
2.17%
06/11/23-12/11/23
716
1.18%
11/12/23-17/12/23
820
5.24%
Inspection reports
Case Number: 2021-0291
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Smolts came on from Sallachy Site (FS0887) and Quoys Hatchery (FS0476) in April 2020.
Fish have been vaccinated with Alpha Ject micro1 PD and Alpha Ject Micro 6
FW wellboat treatment in August and December 2020. Hydrolicer was on site in July 21 and the thermolicer was on site in
August 21. No medicinal treatments have been required since input.
All mortalities are transferred to Doon Bay in sealed bins where they are collected by a Cooke road lorry and transferred to
Pelagia in Bussy, Shetland where they are ensiled.
Deadhaul harvests are taken to Kirkwall procesing plant within the disease management. No discharge into the DMA.
Sites within FMA are not fallowed synchronously on a single year class basis, but there is a documented risk assessment for this which was made available during the inspection.
Fish on site appeared in good health at the time of inspection. No moribunds were observed across the site.
Fish sampled for VMD appeared healthy. [Original PDF]
Case Number: 2024-0090
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Mortality events reported:
28/11/2022 - 2.35 - wk48
25/09/2023 - 1.75 - wk39
02/10/2023 - 4.55 - wk40
09/10/2023 - 1.86 - wk41
16/10/2023 - 1.24 - wk42
30/10/2023 - 2.17 - wk44
Not reported:
Wk31 2023 - 1.43% (3,523) (3,065 were attributed to transport/handling) (thermolicer on site in July)
Wk36 2023 - 1.17% (2,810) - Environmental and handling (hydrolicer 1st Sep)
Wk50 2023 - 5.24% (820) - Environmental
Fish came on from Quoys Hatchery (FS0476) via Loch Garasdale (FS0866) and Bay of Cleat (FS1080) in wk16 2024. 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. PGD was detected on the site during the summer of 2023.
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. Some fish were observed to have physical damage to the flank and head, which was attributed to seal damage from Bay of Cleat. The wounds appeared to be healing well. 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 appeared healthy externally and upon internal examination and had a strong feed response.
Paperwork inspected remotely on 02/05/24. Site inspection completed on 07/05/24. Site inspection conducted by , shadowed by . VMD fish was sampled by under supervision. [Original PDF]