Site Details: Ardgaddan

Stronachullin
Tarbert Road
ArdrIshaig, Argyll
PA30 8ET
Operator: Bakkafrost Scotland
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

Ardgadden Production cycle end date: Jul 2019
Total losses: 13 %

Ardgadden Production cycle end date: Jul 2021
Total losses: 25.2 %

Ardgadden Production cycle end date: Mar 2023
Total losses: 29.7 %

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Fish Health Inspectorate mortality

Date:
15/08/22-21/08/22
Mortality:
10,416
Mortality Rate:
1.62%
Reason given: Gill-health Related; Sea lice related (Post-mechanical treatment)
Gill-health Related; Sea lice related (Post-mechanical treatment)
Freshwater scheduled wk 35
AGD confirmed on site, post treatment loss occuring from a recent hydrolicer treatment. The site is scheduled to treat with freshwater on the 03/08/2022. FHI to monitor.
Date:
05/09/22-11/09/22
Mortality:
29,206
Mortality Rate:
4.7%
Reason given: Gill Health Related
Gill Health Related
FW wk 36; FW scheduled wk 38
FHI to monitor. FHI scheduled to be in area WK 42
Date:
12/09/22-18/09/22
Mortality:
23,990
Mortality Rate:
4.05%
Reason given: Gill Health Related
Gill Health Related
FW wk 38
Mortalities still high, further treatments undertaken. Visit scheduled wk41
Date:
19/09/22-25/09/22
Mortality:
17,811
Mortality Rate:
3.40%
Reason given: Gill Health Related; Handling (Post-treatment)
Gill Health Related; Handling (Post-treatment)
FW wk 39
FHI visit scheduled week 41.
Date:
26/09/22-02/10/22
Mortality:
10,991
Mortality Rate:
2.17%
Reason given: Gill Health Related; Handling (Post-treatment)
Gill Health Related; Handling (Post-treatment)
FW wk 39
Site inspected 11/10/2022 (case no. 2022-0485). Diagnostic samples taken, awaiting results. Mortality levels have reduced from previous week. FHI to monitor.
Date:
21/11/22-27/11/22
Mortality:
6,853
Mortality Rate:
1.68%
Reason given: Bacterial disease
Bacterial disease
Targeted Harvest
Site inspected week 41, diagnostic samples taken. FHI to monitor.
Date:
28/11/22-04/12/22
Mortality:
5,458
Mortality Rate:
1.36%
Reason given: Bacterial Disease
Bacterial Disease
Targeted Harvest
Business correspondant contacted - ongoing targeted harvests. FHI to monitor.
Date:
02/01/23-08/01/23
Mortality:
2,282
Mortality Rate:
1.15%
Reason given: Maturity
Maturity
Monitor
Business correspondent does not expect elevated mortality levels to persist. Recent handling and grisle have contributed to the spike, which is expected to settle down. Company will monitor mortality tends and can employ targeted harvests if mortality does not decrease. Inspectors planned to visit the area in second half of February, so visit can be arranged if issue persists. FHI to monitor .

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Inspection reports

Case Number: 2022-0485


Download Cleaner fish stocks attributed as black loss. Have experienced poor performance of cleaner fish - both wrasse and lumpfish on site. Constant low level mortality since inputs with occasional instant losses after input. AGD identified within stocks but uncertain of cause of mortality. Company considers no remaining stock on site although a small number of wrasse were observed.
Several lethargic fish (Atlantic salmon) observed across the site but not in great numbers. 3 fish removed for diagnostic sampling.
4 x slice treatments since input, 4 fw,1 Salmosan + FW - whole site. Hydrolysing one and a half rounds. [Original PDF]

Case Number: 2024-0013


Download Salmon peaks in mortality 2022: wk 47 6853 (1.68%), wk 48 5458 (1.36%) mainly attributed to SRS.
Salmon peaks in mortality 2023: wk 1 2282 (1.15%) mainly SRS.
Wrasse peaks in mortality 2023: wk 5 1400 (54.6%, wk 6 400 (32.92%), wk 9 200 (24.54%), wk 11 378 (66.20%) all recordd as black losses.
Lumpfish mortalities for period checked were mainly all black losses, 2559 (91.63%).
Elevated mortalities recorded through August and September post transfer but reduced into October.
~12 fish noted with physical damage, strong startle response so not removed for further examination.
Some walkways were buckled.
No plans to use cleanerfish this cycle. [Original PDF]

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