Site Details: Meil Bay

Crowness Point
Hatston
Kirkwall, Orkney
KW15 1GP
Operator: Cooke Aquaculture Scotland Ltd
Water type: Seawater

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: Jan 2020
Total losses: 8.6 %

Production cycle end date: Oct 2021
Total losses: 10.4 %

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Fish Health Inspectorate mortality

Date:
31/10/22-06/11/22
Mortality:
44,781
Mortality Rate:
7.70%
Reason given: Jellyfish/Gill Damage
Jellyfish/Gill Damage
Business correspondent contacted. First report since 2016. FHI to monitor. Updated 17/11/2022: received FW wk 45. Prior to the environmental gill damage was some AGD present on gills. Mortality has reduce in Wk45 to 3.61%. No figures yet for wk 46 due to weather conditions inhibitig counts. FHI to monitor.
Date:
07/11/22-13/11/22
Mortality:
19,302
Mortality Rate:
3.61%
Reason given: Jellyfish/Gill Damage
Jellyfish/Gill Damage
FW treatment and mortalities have reduced, however weather is hampering efforts to remove them, Majority of morts post FW treatments . FHI to monitor.
Date:
21/11/22-27/11/22
Mortality:
4,527
Mortality Rate:
1.21%
Reason given: Gill Damage
Gill Damage
Some gill related damage, mortalities elevated due to weather preventing access to site the previous week. FHI to monitor.
Date:
28/11/22-04/12/22
Mortality:
3,844
Mortality Rate:
1.04%
Reason given: Gill Damage
Gill Damage
Mortality decreasing from previous week. FHI to monitor.
Date:
05/12/22-11/12/22
Mortality:
4,461
Mortality Rate:
1.22%
Reason given: Gill Damage
Gill Damage
Freshwater treatments currently ongoing. FHI to monitor.
Date:
12/12/22-18/12/22
Mortality:
6,806
Mortality Rate:
1.89%
Reason given: Gill damage
Gill damage
Area manager contacted. Mortality rate increase due to AGD and the treatment for AGD using freshwater. Lice numbers were also a factor and the treatment for lice using Salmonsan. The increase in mortality is thought to be multi-factoral involvoing disease and their associated treatments. Mortality has reportedly improved since the treatments. FHI to monitor.
Date:
22/01/23-29/01/23
Mortality:
4,797
Mortality Rate:
1.38%
Reason given: Predator/Other
Predator/Other
Predator/Other
FHI to visit w/b 06/02/2023
Date:
27/02/23-05/03/23
Mortality:
6,513
Mortality Rate:
1.94%
Reason given: Sealice Related
Sealice Related
FHI visited 8/2/23. Business contacted for further details on sea lice issue . Update 14/23.23 Mortality post hydrolicer treatment

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Inspection reports

Case Number: 2021-0294


Download Smolts came on from Yetts O'Muckart (FS0371) in April 2020.
Used as a nursery site. Fish will be moved off to Carness and Quanterness.
Deadhaul harvests go to Kirkwall processing plant within the disease management area. No discharge into DMA.
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.
Seal presence has been noted around the site. Although not causing damage to equipment, the majority of mortalities at the site have been attributed to seal damage.
Site is equipped with both nylon nets and seal blinds on half of the cages and sapphire nets on the other half. Mortalities attributed to seal damage are higher in cages with nylon nets. Site plans to replace the nylon nets with sapphire nets during fallow.
Sites within the 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 were sitting deep in the water so difficult to observe. One moribund observed across the site, removed at the time of inspection and humanely dispatched.
Fish sampled for VMD appeared healthy and demonstrated a strong feeding response. [Original PDF]

Case Number: 2023-0034


Download Peaks in mortality 2022 wk 44 44781 (7.73%) wk 45 19302 (3.61%) mainly gill health issues (AGD). Wk 50 6806 1.89% attributed to sea lice (Salmosan) and gill health (AGD). 2023 wk 03 4797 (1.38%) recorded as predator/other (Post treatment morts being eaten by seals likely some gill health related morts).
All morts from Cooke transferred to Kirkwall shorebase, then transferred to Dounby (near Kirkwall) for bulk uplift to Shetland.
Salmosan administered 10,11 and 12th December 2022. No other medicinal treatments administered.
Gill health is under control. Fish may be transferred to Bay of Vady and treat on route.
Inspection of site limited due to high winds. No pens were walked round on safety grounds but seven pens were inspected from the work boat and three from the walkway when moored to collect samples for VMD. Good feeding response to feed.
Three fish were removed for VMD and were in good physical condition, no clinical signs of disease or gross pathology observed. Two leps observed. [Original PDF]

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