Site Details: Loch Alsh (Sron)

Railway Pier
Ross-shire
Ross-shire
IV40 8AT
Operator: Mowi Scotland Ltd
Water type: Seawater

Average female lice per fish

Source

Salmon Scotland mortality

Source

Cumulative mortality over full production cycle

Loch Alsh Production cycle end date: Aug 2018
Total losses: 39.2 %

Loch Alsh Production cycle end date: Jun 2020
Total losses: 21.4 %

Loch Alsh Production cycle end date: Jun 2022
Total losses: 22.1 %

Loch Alsh Production cycle end date: Nov 2022
Total losses: 19.9 %

Loch Alsh Production cycle end date: Jun 2024
Total losses: 65.6 %

Source

Fish Health Inspectorate mortality

Date:
03/01/22-09/01/22
Mortality:
9,861
Mortality Rate:
1.72%
Reason given: Complex gill diseases and environmental gill damage.
Complex gill diseases and environmental gill damage.
Morality reduced in week following to below the reporting threshold, 0.78%. Site was visited 10/11/2021/ FHI to monitor.
Date:
16/05/22-22/05/22
Mortality:
Mortality Rate:
1.11%
Reason given: Jellyfish
Jellyfish
Buisiness corrospondat contacted, awaiting response. Mortality levels are reducing and are expected to be below reporting threshold. FHI Visited WB 23/05/2022. Business correspondant advises site is being harvested and should be fallow by 9th June.
Date:
23/05/22-29/05/22
Mortality:
9,251
Mortality Rate:
4.04%
Reason given: Jellyfish
Jellyfish
Mortality levels for following week indicate that final % will be above reporting threshold for a second consecutive week. Final fish being harvested from site wk 23.
Date:
30/05/22-05/06/22
Mortality:
10,086
Mortality Rate:
7.23%
Reason given: Jellyfish
Jellyfish
Site being harvested out
Final fish harvested from site wk 23. Site now fallow. No further action.
Date:
06/06/22-12/06/22
Mortality:
1,028
Mortality Rate:
3.47%
Reason given: Jellyfish
Jellyfish
Site now fallow
Date:
15/08/22-21/08/22
Mortality:
3,814
Mortality Rate:
1.21%
Reason given: Gill infections
Gill infections
Mortality rate dropped to 0.26% following week.
FHI to monitor.
Date:
19/09/22-25/09/22
Mortality:
5,259
Mortality Rate:
1.72%
Reason given: Gill infections / Jellyfish
Gill infections / Jellyfish
Mortality increasing again, FHI to monitor.
Date:
26/09/22-02/10/22
Mortality:
5,205
Mortality Rate:
1.74%
Reason given: Gill infections / Jellyfish
Gill infections / Jellyfish
Mortalities improving in week 40. FHI to monitor.
Date:
03/10/22-09/10/22
Mortality:
3,244
Mortality Rate:
1.10%
Reason given: Gill infections / Jellyfish
Gill infections / Jellyfish
Mortalities reducing. FHI to monitor.
Date:
24/10/22-30/10/22
Mortality:
7,876
Mortality Rate:
3.55%
Reason given: Gill infections
Gill infections
Site being harvested
Site estimated to be fallow by the end of week 46. FHI to monitor.
Date:
31/10/22-06/11/22
Mortality:
16,711
Mortality Rate:
7.47%
Reason given: Gill infections / Jellyfish
Gill infections / Jellyfish
Site estimated to be fallow by the end of week 46. FHI to monitor.
Date:
07/11/22-13/11/22
Mortality:
7,613
Mortality Rate:
5.11%
Reason given: Gill infections / Jellyfish
Gill infections / Jellyfish
Site harvesting out
Business correspondent contacted. Site planned o be fallow Wk 46. FHI to monitor.
Date:
14/11/22-20/11/22
Mortality:
567
Mortality Rate:
2.14%
Reason given: Gill infections / Jellyfish
Gill infections / Jellyfish
Site fallow. No further action.
Date:
09/10/23-15/10/23
Mortality:
21,118
Mortality Rate:
2.6%
Reason given: Gills, aneamia, treatment losses
Gills, aneamia, treatment losses
First report this cycle. FHI to monitor
Date:
16/10/23-22/10/23
Mortality:
35,318
Mortality Rate:
4.46%
Reason given: Gills, aneamia, treatment losses
Gills, aneamia, treatment losses
2nd report this cycle. Increase from 2.6% to 4.46%. Inspection scheduled.
Date:
23/10/23-29/10/23
Mortality:
99,717
Mortality Rate:
13.19%
Reason given: Gills, aneamia, treatment losses
Gills, aneamia, treatment losses
Site to be inspected wk45
Date:
30/10/23-05/11/23
Mortality:
112,206
Mortality Rate:
17.10%
Reason given: Gills, anaemia, treatment losses
Gills, anaemia, treatment losses
Currently FW treating, expect to be finished on Friday
FHI visited. Diagnostic samples taken, awaiting results.
Date:
20/11/23-26/11/23
Mortality:
8,435
Mortality Rate:
1.97%
Reason given: AGD/Anemia
AGD/Anemia
Site inspected 08/11 (2023-0497). Diagnostic samples taken. AGD, Salmon gill poxvirus, SAV identified along with Paranucleospora theridion. FHI to monitor.
Date:
27/11/23-03/12/23
Mortality:
12,692
Mortality Rate:
3.02%
Reason given: AGD/Anemia
AGD/Anemia
Site inspected 08/11 (2023-0497). Diagnostic samples taken. AGD, Salmon gill poxvirus, SAV identified along with Paranucleospora theridion. FHI to monitor.
Date:
04/12/23-10/12/23
Mortality:
10,482
Mortality Rate:
2.58%
Reason given: AGD/Anemia
AGD/Anemia
FHI visited 8/11/23, case number 2023-0497. Diagnostic sample collected. Complex gill disease.
Date:
11/12/23-17/12/23
Mortality:
14,180
Mortality Rate:
3.58%
Reason given: AGD/Anemia
AGD/Anemia
FHI visited 8/11/23, case number 2023-0497. Diagnostic sample collected. Complex gill disease.
Date:
11/03/24-17/03/24
Mortality:
14,559
Mortality Rate:
2.57%
Reason given: Treatment Losses (FW in wellboat)
Treatment Losses (FW in wellboat)
FHI to monitor.
Date:
06/05/24-12/05/24
Mortality:
4,258
Mortality Rate:
1.03%
Reason given: Gill infections
Gill infections
Business contacted: CGD, site harvesting.
FHI to monitor.
Date:
13/05/24-19/05/24
Mortality:
5,050
Mortality Rate:
1.28%
Reason given: Gill infections
Gill infections
Business contacted: CGD, site harvesting.
FHI to monitor.
Date:
20/05/24-26/05/24
Mortality:
3,969
Mortality Rate:
1.12%
Reason given: Gill infections
Gill infections
Harvesting.
FHI to monitor.
Date:
27/05/24-02/06/24
Mortality:
4,585
Mortality Rate:
1.42%
Reason given: Gill infections
Gill infections
Business contacted: Site harvesting to fallow, currently planned by the end of the month.
FHI to monitor.
Date:
03/06/24-09/06/24
Mortality:
4,387
Mortality Rate:
1.51%
Reason given: Gill infections
Gill infections
Business previously contacted: Site harvesting to fallow, currently planned by the end of the month.
FHI to monitor.
Date:
10/06/24-16/06/24
Mortality:
4,061
Mortality Rate:
1.90%
Reason given: Gill infections
Gill infections
Business previously contacted: Site harvesting to fallow, currently planned by the end of the month.
FHI to monitor.
Date:
17/06/24-23/06/24
Mortality:
3,017
Mortality Rate:
2.67%
Reason given: Gill infections
Gill infections
Site fallowing in w/c 24th June.
FHI to monitor.

Source

Inspection reports

Case Number: 2021-0482


Download Stocked and fish transferred from Ardintoul. Freshwater treated prior to being moved. Stock origin, Stofinfiskur from Loch Loch
Cleanerfish Mortality (recent Wrasse);
Wk44: 1.53%, 876
Wk43: 1.63%, 947
Wk42: 2.63%, 1569
Wk41: 1.08%, 648
Cleanerfish mortality (recent Lumpfish);
Wk44: 0.78%, 239
Wk43: 3.54%,1118
Wk42: 3.45%, 1128
Wk41: 2.41%,808
Lumpfish seem to be in better condition due to handfeeding which keeps the fish away from the nets. Mortalities have reduced as a result through the new cycle.
Other Mortality peaks: Wrasse-2021 Wk 40, 4.49%, 1574; Wk 39, 3.01%, 1088
SAL-2019 Wk47: hydrolicer, anaemia and moribund
SAL-2020 Wk24: clinical CMS
SAL-2020 Wk25: clinical CMS
Wrasse were found to be positive for furunculosis in Oct 2021. W/b 08/11/2021 the fish are being treated with florifenicol (in block form).
Inspection completed by , observed by . VMD sampled by , observed by . [Original PDF]

Case Number: 2023-0177


Download All fish from Lochailort
Morts get transported to Ardintoul to be ensiled and then moved on for biogas
Lumpfish mortality last 4 weeks: Wk 16 - 1.29% (1701 fish), Wk 17 - 1.11% (1434 fish), Wk 18 - 0.68% (876 fish), Wk 19 -
0.88% (1117 fish)
Increased SAL mortality Weeks 20 to 23 in 2022 - 1.11% (3232), 4.04% (9251), 7.23% (10086) and 3.47% (1028) as well as
Wks 43 to 46 - 3.55% (7876), 7.47% (16711), 5.11% (7613), 2.14% (567). All mortality due to jellyfish (gill issues).
VMD samples taken from pens 4, 7 and 10.
Recent health report - 13th April - nothing significant, rising mort numbers due to likely bacteria but TBC. 28th April from vet - nothing of significance, signs of septicaemia.
Rising caligus lice numbers have resulted in planned Alphamax treatment.
On inspection of the site a handful of morts were observed across the whole site. Fish were swimming further down in the water column and had a good feed response.
Site inspection, paperwork and VMD completed by , observed by 16/05/2023 [Original PDF]

Source