Site Details: Caolas A Deas

Lemreway Pier
South Lochs
HS2 9RD
Operator: Mowi Scotland Ltd
Water type: Seawater

Average female lice per fish

Source

Salmon Scotland mortality

Source

Cumulative mortality over full production cycle

Caolas a Deas East Production cycle end date: Jun 2018
Total losses: 1.1 %

Caolas a Deas West Production cycle end date: Jun 2018
Total losses: 2.4 %

Caolas a Deas West Production cycle end date: Apr 2020
Total losses: 28.1 %

Caolas a Deas East Production cycle end date: Apr 2020
Total losses: 31.4 %

Caolas a Deas East Production cycle end date: Dec 2021
Total losses: 11.3 %

Caolas a Deas West Production cycle end date: Mar 2022
Total losses: 24.4 %

Source

Fish Health Inspectorate mortality

Date:
21/02/22-27/02/22
Mortality:
2,708
Mortality Rate:
2.33%
Reason given: CMS
CMS
Fish being monitored closely by site, harvest plan in place and harvest will begin in week 10
Date:
07/03/22-13/03/22
Mortality:
888
Mortality Rate:
1.62%
Reason given: Preadator Seal / CMS
Preadator Seal / CMS
Site currently using HDPE nets with sliders and a mortality extraction cone as tension tool for it. Site is currently harvesting.
Site to be harvested out soon, FHI to moniitor.
Date:
11/09/23-17/09/23
Mortality:
23,799
Mortality Rate:
1.56%
Reason given: Treatment loss / Low oxygen
Treatment loss / Low oxygen
FW treatment was completed at the start of this week. Morts are related to AGD/handling. Sigificant drop in oxygen overnight which also impacted on fish recovery post treatment. FHI to monitor.
Date:
18/09/23-24/09/23
Mortality:
28,702
Mortality Rate:
2.92%
Reason given: Low oxygen / Treatment loss
Low oxygen / Treatment loss
Second notification of the cycle, slight increase since the notification last week. Treatment losses exacerbated by a sudden drop in oxygen levels which reportedly affected recovery post treatment.
Date:
25/09/23-01/10/23
Mortality:
55,762
Mortality Rate:
5.66%
Reason given: Anaemia / treatment losses
Anaemia / treatment losses
Significant increase on mortality from previous week. Attributed to treatment loss. FHI visit to be arranged
Date:
02/10/23-08/10/23
Mortality:
44,400
Mortality Rate:
4.96%
Reason given: Low oxygen / Treatment loss / Anaemia
Low oxygen / Treatment loss / Anaemia
Site visit scheduled. FHI to monitor.
Date:
09/10/23-15/10/23
Mortality:
44,392
Mortality Rate:
6.03%
Reason given: Anaemia/sea lice Treatment losses
Anaemia/sea lice Treatment losses
FHI visit scheduled
Date:
16/10/23-22/10/23
Mortality:
51,110
Mortality Rate:
8.26%
Reason given: Anaemia/treatment losses
Anaemia/treatment losses
FHI visit scheduled
Date:
23/10/23-29/10/23
Mortality:
17,853
Mortality Rate:
2.68%
Reason given: Anaemia/treatment losses
Anaemia/treatment losses
Large reduction in mortality rate. FHI visit scheduled.
Date:
30/10/23-05/11/23
Mortality:
19,683
Mortality Rate:
3.58%
Reason given: Anaemia/treatment losses
Anaemia/treatment losses
This week, the mortality has dropped significantly to approx 0.2% per day. Continuing to monitor closely.
FHI visited. Diagnostic samples taken, awaiting results.
Date:
06/11/23-12/11/23
Mortality:
7,968
Mortality Rate:
1.47%
Reason given: Anaemia/treatment losses
Anaemia/treatment losses
FW treating currently underway.
FHI visited 04/10/23 and samples taken. Samples positive for Paranucleospora theridion, SGPV and Vibrio.
Date:
13/11/23-19/11/23
Mortality:
6,855
Mortality Rate:
1.28%
Reason given: Anaemia/treatment losses
Anaemia/treatment losses
FHI visited 04/10/23 and samples taken. Samples positive for Paranucleospora theridion, SGPV and Vibrio.
Date:
15/01/24-21/01/24
Mortality:
5,252
Mortality Rate:
1.12%
Reason given: Treatment losses (Thermolicer)
Treatment losses (Thermolicer)
FHI inspection scheduled. FHI to monitor.
Date:
03/06/24-09/06/24
Mortality:
4,387
Mortality Rate:
2.18%
Reason given: Treatment losses (Thermolicer)
Treatment losses (Thermolicer)
FHI visited 28/5/24 (2024-0173). Diagnostic samples taken, awaiting results.
Date:
10/06/24-16/06/24
Mortality:
4,086
Mortality Rate:
2.38%
Reason given: Bacterial infection and treatment loss
Bacterial infection and treatment loss
FHI visited 28/5/24 (2024-0173). Diagnostic samples taken, awaiting results.
Date:
17/06/24-23/06/24
Mortality:
1,691
Mortality Rate:
1.01%
Reason given: Bacterial Infection
Bacterial Infection
FHI visited 28/5/24 (2024-0173). Diagnostic samples taken - BKD. CDN in place for BKD.

Source

Inspection reports

Case Number: 2021-0309


Download Mortality last 4 weeks:
WRS 2021: wk 35, 601; wk34, 788; wk33, 114, wk32 no entry
LUM 2021: wk35, 66; wk34, 235; wk33, 785; wk32, 1670.
Increased Mortality in Cleanerfish:
LUM 2021: wk8, 6447 (freshwater); wk22, 8321; wk23, 7228; wk29, 5690; wk30, 11621 (extended freshwater) ;wk31, 10030
(extended freshwater)
Causes of mortality: sealice treatment (freshwater ), tenacibaculum
SAL: Pen 8- still experiencing pressure of yersiniosis, morts are reducing. Entire site still continuing Florfenicol treatment.
It has been accepted by industry that freshwater treatments will lead to elevated lumpfish mortalities. No alternative solution was given. Site manager said that it is difficult to dewater lumpfish as a result of size and shape. Staff try to remove fish as much as possible with hand nets. Increased handling may also contribute to mortalities.
Elevated lice on site: scheduled hydrolicer treatment.
Site inspection conducted on 15/09/2021 by and shadowed by .
VMD samples taken on 15/09/2021 by , observed by .
Remote paperwork conducted by , supervised by on 23/09/2021. [Original PDF]

Case Number: 2024-0166


Download Informed by operators of presence of BKD, site visit arranged and IDN placed [Original PDF]

Case Number: 2024-0173


Download Fish input from Trilleachan Mor on 09/04/2024 (wk15). Site fallowed out previous crop on 04/04/2024. Risk assessment inspected 06/06/2024.
Stock Origin: pen 5, Lochailort, Fanad; rest of the pens, Inchmore, Aquagen
Harvests deadhaul and livehaul- to Blar Mhor.
Statutory inspection conducted following report from the business that clinical signs of Bacterial Kidney Disease (BKD) have been observed on 23/05/2024. The detailed sampling of fish by the business commenced on site following the observation of clinical signs at Seaforth (FS1042) and subsequent CDN placement. The stock origin of fish currently at Caolas a deas is noted as Trilleachan Mor (FS1118). Fish previously transferred to Trilleachan Mor originated from Seaforth (same batch of fish).
During the site inspection, all stocked pens were inspected and 5-10 lethargic fish were observed in the majority of the pens.
The majority of these fish were found to be deformed. From the ten fish that were removed, 4 were sampled following the observation of clinical sign relating on BKD.
The 4 fish sampled showed signs of swollen, grey, granular kidney, bloody ascites, swollen spleen with granules and yellow pseudofaeces.
Pen 5 on site was noted as the pen with increased mortality compared to the rest of the site; this is also the pen that originally during routine health surveillance from the business, clinical signs of BKD were observed.
On the day of inspection, pen 1 was receiving a passive grade/targeted harvest - permission to move dead fish off site was given by FHI on 27/05/2024.
Health team visit every 3 weeks.
A few wrasse were observed on site during site inspection. No records relating to cleanerfish because site did not think that there were cleanerfish on site. Site mentioned that cleanerfish may have been transferred from Trilleachan Mhor - ~5% remaining on site. [Original PDF]

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