Site Details: Greanamul

Loch A Laip
Western Isles
Western Isles
HS7 5QH
Operator: Bakkafrost Scotland
Water type: Seawater

Average female lice per fish

Source

Salmon Scotland mortality

Source

Cumulative mortality over full production cycle

Production cycle end date: Nov 2021
Total losses: 11.3 %

Production cycle end date: Aug 2023
Total losses: 56.4 %

Source

Fish Health Inspectorate mortality

Date:
12/09/22-18/09/22
Mortality:
16,677
Mortality Rate:
2.57%
Reason given: Gill Health Related
Gill Health Related
FW scheduled wk 39/40
First report of cycle, FHI to monitor.
Date:
19/09/22-25/09/22
Mortality:
21,590
Mortality Rate:
3.42%
Reason given: Gill Health Related
Gill Health Related
FW wk 39
Mortality increased from first report the previous week. FHI to monitor.
Date:
26/09/22-02/10/22
Mortality:
11,827
Mortality Rate:
1.94%
Reason given: Gill Health Related
Gill Health Related
FW Scheduled week 41
Mortality levels decreased from previous week. FHI to monitor.
Date:
03/10/22-09/10/22
Mortality:
7,525
Mortality Rate:
1.26%
Reason given: Gill Health Related
Gill Health Related
FW week 41
Mortality levels still dropping from previous week. FHI to report
Date:
10/10/22-16/10/22
Mortality:
10,623
Mortality Rate:
1.80%
Reason given: Gill Health Related
Gill Health Related
FW week 41/42
FHI to monitor and review prior to next Western Isles trip
Date:
31/10/22-06/11/22
Mortality:
7,168
Mortality Rate:
1.24%
Reason given: Gill health related
Gill health related
Monitor and schedule into FW plan if req'd after Maragay
Decrease in mortality since 24/10/2022. AGD confirmed on site. Awaiting weather window to treat with FW. Next in treatment plan for FW. FHI to monitor.
Date:
21/11/22-27/11/22
Mortality:
7,020
Mortality Rate:
1.24%
Reason given: Gill health related
Gill health related
FW week 48
AGD confirmed on site. Awaiting weather window to treat with FW - scheduled for next week. FHI to monitor.
Date:
28/11/22-04/12/22
Mortality:
6,343
Mortality Rate:
1.14%
Reason given: Gill Health Related (AGD & Post Treatment)
Gill Health Related (AGD & Post Treatment)
FW week 48
Business correspondant contacted - FW treatment has improved gills and mortalities are currently down. FHI to monitor.
Date:
01/05/23-07/05/23
Mortality:
20,947
Mortality Rate:
3.69%
Reason given: Bacterial Disease; Gill health related
Bacterial Disease; Gill health related
Monitor - Potential Harvests
Site visit scheduled. FHI to monitor.
Date:
08/05/23-14/05/23
Mortality:
11,368
Mortality Rate:
2.08%
Reason given: Bacterial Disease; Gill health related
Bacterial Disease; Gill health related
Freshwater Treatment wk 20
Routine site visit scheduled for June. Mortalties reduced from previous report, FW treatments hope to reduce and stablise mortalities further. FHI continue to monitor.
Date:
15/05/23-21/05/23
Mortality:
6,117
Mortality Rate:
1.14%
Reason given: Bacterial Disease; Gill health related
Bacterial Disease; Gill health related
Freshwater Treatment wk 21
Routine site visit scheduled for June. Mortalities reduced from previous week, freshwater treatments hope to reduce mortalities further. FHI to monitor.
Date:
22/05/23-28/05/23
Mortality:
7,396
Mortality Rate:
1.40%
Reason given: Gill health related; Bacterial Disease (Furunculosis); Viral Disease (CMS)
Gill health related; Bacterial Disease (Furunculosis); Viral Disease (CMS)
Freshwater Treatment wk 21
Gill health issues coupled with furunculosis and CMS contributing to increased mortalities. Site scheduled to be inspected.
Date:
05/06/23-11/06/23
Mortality:
15,882
Mortality Rate:
3.18%
Reason given: Viral Disease (CMS); Bacterial Disease (Furunculosis)
Viral Disease (CMS); Bacterial Disease (Furunculosis)
Site carrying out targeted harvesting on worst affected pens.
FHI to monitor. Site scheduled to be inspected.
Date:
12/06/23-18/06/23
Mortality:
12,155
Mortality Rate:
2.52%
Reason given: Viral Disease (CMS), Bacterial Disease (Furunculosis)
Viral Disease (CMS), Bacterial Disease (Furunculosis)
Targetted Harvesting
FHI to monitor. Site scheduled to be inspected.
Date:
19/06/23-25/06/23
Mortality:
7,427
Mortality Rate:
1.58%
Reason given: Viral Disease (CMS); Gill health related
Viral Disease (CMS); Gill health related
Targeted harvests; Freshwater wk 26/27; Business contacted: 3 pens harvested wk26, targeted harvests, monitoring on-going situation.
Inspection scheduled. Business contacted for additional information. Further notification expected for wk26.
Date:
26/06/23-02/07/23
Mortality:
7,400
Mortality Rate:
1.60%
Reason given: Viral Disease (CMS); Gill health related
Viral Disease (CMS); Gill health related
PD confirmed onsite, recent enviromental challenges caused issues with gill health which has lead to a further increase in mortality. The site completed a round of freshwater treatments ending 27/06/23.
Site contacted for further information, FHI to monitor.
Date:
03/07/23-09/07/23
Mortality:
10,646
Mortality Rate:
2.58%
Reason given: Viral Disease (CMS); Gill Health Related
Viral Disease (CMS); Gill Health Related
Targeted Harvests; FW week 27
Business contacted for further information. FW treatment conducted in Wk 27. PD confirmed and gill health issues following envrionmental challenges increased mortality. Targeted harvests also have commenced. FHI to monitor.
Date:
10/07/23-17/07/23
Mortality:
4,274
Mortality Rate:
1.06%
Reason given: Viral Disease (CMS); Gill Health Related
Viral Disease (CMS); Gill Health Related
Targeted Harvests; Bath treatment wk 29
Inspection scheduled. Mortalilty has decreased following FW treatment and targetted harvest. FHI to monitor
Date:
17/07/23-23/07/23
Mortality:
4,135
Mortality Rate:
1.15%
Reason given: Viral Disease (CMS); Gill Health related
Viral Disease (CMS); Gill Health related
Targeted Harvests; FW wk 29
FHI to monitor.
Date:
24/07/23-30/07/23
Mortality:
12,837
Mortality Rate:
4.03%
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:
11,756
Mortality Rate:
3.84%
Reason given: Gill Health Related
Gill Health Related
Site contacted for further information, Gill health related issues from a recent enviromental insult. Targetted harvesting currently underway. Mortality is increasing on site. Further freshwater treatments are being organised for either week 33 or wk 34.
FHI to monitor.
Date:
07/08/23-13/08/23
Mortality:
13,682
Mortality Rate:
4.65%
Reason given: Gill Health Related
Gill Health Related
Targeted Harvests
11th consecutive report over threshold. Contacted business correspondant - estimated mortality for Wk 33 is 9.1%. FHI inspection scheduled. FHI to monitor.
Date:
14/08/23-20/08/23
Mortality:
23,470
Mortality Rate:
9.10%
Reason given: Gill Health Related
Gill Health Related
Targeted Harvests
Continuation of mortality event, site inspection is scheduled. FHI to monitor. Site is sheduled to fallow by the end of next week (wk36).
Date:
21/08/23-27/08/23
Mortality:
35,099
Mortality Rate:
16.92%
Reason given: Gill Health Related
Gill Health Related
Harvests - Site Fallowed wk 35
FHI visited. Site now fallow
Date:
28/08/23-03/09/23
Mortality:
9,313
Mortality Rate:
6.38%
Reason given: Gill Health Related
Gill Health Related
Harvests - Site Fallowed wk 35
Site inspected 31/08/2023. Site fallow. No further action.

Source

Inspection reports

Case Number: 2021-0202


Download Site is due to install seal pro nets next cycle, not in response to seal presence around the site, but just as a precautionary measure.
Fish on site came on from both Langavat (FS0149) and Geocrab Hatchery (FS0562). No cleanerfish stocked this cycle.
Wellboat was on site during inspection for grading and freshwater treatment.
The stock on site appeared healthy, with very few lethargic fish osberved across the site. Due to bad weather, the site had not been graded for 6 months so there were still several runts observed in the population. Where these were able to be caught, they were removed and culled during the inspection.
Fish sampled for VMD appeared healthy. [Original PDF]

Case Number: 2023-0407


Download Wrasse - did have wrasse on site but not wanting to use in future due to being unable to capture before treatments.
Raised mortalities - Wk37 - Wk41 2022 - due to gill issues. Raised mortality this year since Wk18 2023 due to Frunculosis,
CMS, Gill issues due to jellyfish/environmental challenges.
Freshwater and hydrolicer (FLS). Alphamax 21st July.
Optamaze used for sedation - shorter withdrawal period
Health reports:
13/07/2023 - bacteria suggestive of Aeromonas salmonicida. Moderate to marked myocardial pathology suggestive of CMS.
Liver necrosis in one fish. Gill pathology compatible with previous environmental damage.
15/08/2023 - PGD, reduced mucous coverage. Underlying infections (frunculosis or CMS) combined with gill issues.
Site had frunculosis in June - not too much of a problem currently however some fish are still showing signs.
Fish from Landcatch FS0575.
Site thermometer used as the battery on the inspectors died.
On physical inspection of the site, two pens were actively being lifted for harvest. The slight crowding brought fish closer to the surface where they were observed. Fish showed no signs of distress, very few lice and appeared healthy. In the other two stocked pens four and six moribunds were observed. The rest of the population were shoaling deep in water column which was hard to see. Any fish observed appeared healthy with few lice - these fish are being harvest tomorrow.
Fish for VMD samples were taken from pen 4. On examination only two caligus were observed on each fish. Internally, both fish appeared healthy but one had fat on its spleen. [Original PDF]

Source