Site Details: Maaey

Kallin Shorebase
Grimsay
North Uist
HS6 5HY
Operator: Bakkafrost Scotland
Water type: Seawater

Average female lice per fish

Source

Salmon Scotland mortality

Source

Cumulative mortality over full production cycle

Maaey Production cycle end date: Dec 2019
Total losses: 52.9 %

Maaey Production cycle end date: Oct 2021
Total losses: 30 %

Maaey Production cycle end date: Aug 2023
Total losses: 35 %

Source

Fish Health Inspectorate mortality

Date:
19/09/22-25/09/22
Mortality:
14,479
Mortality Rate:
2.28%
Reason given: Gill Health Related
Gill Health Related
FW wk 39
First report this cycle. FHI to monitor.
Date:
26/09/22-02/10/22
Mortality:
6,199
Mortality Rate:
1.00%
Reason given: Gill Health Related
Gill Health Related
FW Scheduled week 41/42
Mortality levels have dropped from initial report. FHI to monitor
Date:
03/10/22-09/10/22
Mortality:
6,177
Mortality Rate:
1.01%
Reason given: Gill Health Related
Gill Health Related
FW Scheduled week 41/42
Mortality levels constant from previous week. FHI to monitor
Date:
24/10/22-30/10/22
Mortality:
7,293
Mortality Rate:
1.21%
Reason given: Gill health related (Post-treatment)
Gill health related (Post-treatment)
Mortality spike following freshwater treatment. Back to being below threshold in wk 44. FHI to monitor.
Date:
17/04/23-23/04/23
Mortality:
5,076
Mortality Rate:
1.05%
Reason given: Gill health
Gill health
First notification of mortality in 2023. FHI to monitor.
Date:
24/04/23-30/04/23
Mortality:
7,553
Mortality Rate:
1.57%
Reason given: Gill Health
Gill Health
2nd report this year. FHI to monitor
Date:
01/05/23-07/05/23
Mortality:
9,296
Mortality Rate:
1.97%
Reason given: Bacterial Disease; Gill health related
Bacterial Disease; Gill health related
Monitor - Potential Harvests
Health team is monitoring mortalities and will assess on a week by week basis. Targeted harvests will be organised if elevated mortalities persist. FHI to monitor.
Date:
29/05/23-04/06/23
Mortality:
5,807
Mortality Rate:
1.43%
Reason given: Viral Disease (CMS); Bacterial Disease (Furunculosis)
Viral Disease (CMS); Bacterial Disease (Furunculosis)
Harvesting
Harvesting has started on site to remove worst affected from population. FHI to monitor.
Date:
05/06/23-11/06/23
Mortality:
7,329
Mortality Rate:
1.83%
Reason given: Viral Disease (CMS); Bacterial Disease (Furunculosis)
Viral Disease (CMS); Bacterial Disease (Furunculosis)
Site carrying out targeted harvesting on worst affected pens. Sea lice FW treatment recently completed.
FHI to monitor.
Date:
03/07/23-09/07/23
Mortality:
5,579
Mortality Rate:
1.44%
Reason given: Viral Disease (CMS); Gill Health Related
Viral Disease (CMS); Gill Health Related
Targeted Harvests
Business contacted for further information. Targeted harvests have commenced. FHI to monitor
Date:
17/07/23-23/07/23
Mortality:
3,241
Mortality Rate:
1.02%
Reason given: Viral Disease (CMS); Gill Health related
Viral Disease (CMS); Gill Health related
Targeted Harvests; FW wk
FHI to monitor.
Date:
24/07/23-30/07/23
Mortality:
4,667
Mortality Rate:
1.50%
Reason given: Viral Disease (CMS); Gill Health Related
Viral Disease (CMS); Gill Health Related
Targeted Harvests; FW wk 29
FHI to monitor.
Date:
31/07/23-06/08/23
Mortality:
7,804
Mortality Rate:
2.88%
Reason given: Gill Health Related
Gill Health Related
Site contacted for further information, Gill health related issues from a recent enviromental insult. Site freshwater treating week 33, targetted harvesting currently underway. Mortality is increasing on site.
FHI to monitor.
Date:
07/08/23-13/08/23
Mortality:
23,447
Mortality Rate:
9.37%
Reason given: Gill Health Related
Gill Health Related
Targeted Harvests; FW week 33
5th consecutive report over threshold. Contacted business correspondant - estimated mortality for Wk 33 is 13.39. Inspection scheduled. FHI to monitor.
Date:
14/08/23-20/08/23
Mortality:
23,988
Mortality Rate:
13.39%
Reason given: Gill Health Related
Gill Health Related
Targeted Harvests; FW week 33
Continuation of mortality event, site inspection is scheduled. .FHI to monitor.Site should be fallow by the end of week 35
Date:
21/08/23-27/08/23
Mortality:
3,376
Mortality Rate:
3.54%
Reason given: Gill Health Related
Gill Health Related
Harvests
Site fallow - to be confirmed

Source

Inspection reports

Case Number: 2022-0161


Download Remote inspection on 19/05/2022.
The site experiences a challenge with Caligus during the summer, managed with Slice at input and freshwater treatments are now also available since last summer. Adult female counts are currently 0 but the site has been above 2 in previous cycles - this data was shared with the FHI at the time.
Wild caught wrasse from Scotland.
During the site inspection, the main population of fish looked healthy and feeding well, with no moribunds or dead fish seen in the pens. The fish sampled for the VMD had small numbers of Caligus present, but the site is aware and currently treating with
Slice. No gross pathology observed. [Original PDF]

Case Number: 2024-0462


Download Site inspected in calm weather, visibility of the stocks were good. The site was recently stocked on 11th November 2024 with fish split down from Maragay Mor (FS1304). Fish transferred very healthy and no mortality attributed to transfer occurred.
During transfer the fish were treated with Freshwater and FLS. Upon the physical inspection of the stocks fish were observed shoaling well and responding positively to routine feeding. No clinical signs of disease observed during the inspection. [Original PDF]

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