Site Details: Sound of Harris

Hebrides Office
The Pier, Lochmaddy
North Uist
HS6 5AA
Operator: Loch Duart Ltd
Water type: Seawater

Average female lice per fish

Source

Salmon Scotland mortality

Source

Cumulative mortality over full production cycle

Production cycle end date: Feb 2020
Total losses: 10.4 %

Production cycle end date: Dec 2021
Total losses: 50.3 %

Production cycle end date: Nov 2023
Total losses: 48.2 %

Source

Fish Health Inspectorate mortality

Date:
22/08/22-28/08/22
Mortality:
8,616
Mortality Rate:
1.69%
Reason given: Gill Health
Gill Health
AGD; freshwater treatments administered
First report this cycle. FHI to monitor
Date:
05/09/22-11/09/22
Mortality:
6,111
Mortality Rate:
1.22%
Reason given: Gill Health
Gill Health
Numbers reducing. FHI to monitor
Date:
12/09/22-18/09/22
Mortality:
10,026
Mortality Rate:
2.02%
Reason given: Gill health
Gill health
Numbers have risen following decrease last week.
Date:
19/09/22-25/09/22
Mortality:
8,587
Mortality Rate:
1.77%
Reason given: Gill Health
Gill Health
Paramove 50 treatments scheduled for wk 40. Mortalities decreasing from previous week. FHI to monitor.
Date:
26/09/22-02/10/22
Mortality:
12,500
Mortality Rate:
2.62%
Reason given: Gill Health
Gill Health
Paramove 50 treatments scheduled for wk 40.
5th week of reporting around the 2% level. Inspector in area week 17/10/22. To visit if increased mortalities persisits. Update 12/10/2022: spoken to business correspondent, due to weather paramove treatment still ongoing (Wk41) and will likely be done end of the week. Pens that have been treated are showing signifcant reduction in mortalities. FHI to monitor but no visit will be conducted in wk 42.
Date:
03/10/22-09/10/22
Mortality:
17,938
Mortality Rate:
3.86%
Reason given: Gill Health
Gill Health
Paramove 50 treatments begin.
Mortality levels have decreased below threshold in week 41. Paramove treatments continue. FHI to monitor.
Date:
10/10/22-16/10/22
Mortality:
8,054
Mortality Rate:
1.80%
Reason given: Gill Health
Gill Health
Weather permitting, Paramove 50 treatments continue.
Reported mortality levels decreased by >50% from previous week. Paramove 50 treatments to continue. FHI to monitor
Date:
17/10/22-23/10/22
Mortality:
15,991
Mortality Rate:
3.64%
Reason given: Gill Health
Gill Health
Paramove 50 treatments to begin wk 43.
Mortalities have increased on site since Paramove treament, although these are continuing. FHI to visit November
Date:
24/10/22-30/10/22
Mortality:
9,880
Mortality Rate:
2.33%
Reason given: Gill Health
Gill Health
Paramove 50 treatments continue
Site to be inspected on the 22/11/2022. FHI to monitor.
Date:
31/10/22-06/11/22
Mortality:
20,647
Mortality Rate:
4.99%
Reason given: Gill Health
Gill Health
Paramove 50 treatments continue as weather allows
Paramove 50 treatments continuing. FHI to inspect w/b 21/11/2022. FHI to monitor.
Date:
07/11/22-13/11/22
Mortality:
16,810
Mortality Rate:
4.28%
Reason given: Gill Health
Gill Health
Parmove 50 treaments continue as weather allows
FHI to visit 22/11/22
Date:
14/11/22-20/11/22
Mortality:
14,858
Mortality Rate:
3.95%
Reason given: Gill Health
Gill Health
Paramove 50 treatments continue as weather allows
Site inspected 22/11/2022, diagnostic samples taken. FHI to monitor.
Date:
21/11/22-27/11/22
Mortality:
10,721
Mortality Rate:
2.97%
Reason given: Gill Health
Gill Health
Paramove 50 treatments continue as weather allows
Site inspected 22/11/2022, diagnostic samples taken. Mortality decreasing from previous week. FHI to monitor.
Date:
28/11/22-04/12/22
Mortality:
25,672
Mortality Rate:
7.33%
Reason given: Gill Health Treatment
Gill Health Treatment
Paramove 50 treatments
Site inspected 22/11/2022, diagnostic samples taken, finding AGD and salmon gill poxvirus . Mortality has increased from previous weeks. Paramove treatments continuing. Business correspondent contacted, awaiting response. FHI to monitor.
Date:
05/12/22-11/12/22
Mortality:
20,929
Mortality Rate:
6.45%
Reason given: Gill Health Treatment
Gill Health Treatment
Losses have significantly reduced by the end of week. Business correspondent does not anticipate a wk50 notification. FHI to monitor.

Source

Inspection reports

Case Number: 2021-0336


Download Mortality related to AGD has been seen across all pens. Specifically, the smaller grades more affected.
Failed smolts seen during wk8 to wk10 and fish with fungus was noted. Transferred from Ormsary and Clachbreac. Low level plankton observed throughout the cycle. Fish transferred from Oldany/Clashnessie for top up of stock following gill issues on site in Autumn 2020.
Locally, wild caught ballan WRS. Since the start of the cycle.
Site holding future broodstock fish. 5000 fish will be kept and transferred to Oldany/Clashnessie Bay.
All harvests are by deadhaul.
Site is not currently located in a CoGP Farm management area
Cleanerfish Mortality per production cycle:
2018 571 ballan wrasse
2020 2513 ballan wrasse; 940 lumpfish
Number of lethargic fish seen in all pens Five fish removed from one pen for diagnostic sampling.
Remote inspection conducted by and supervised by on 28/09/2021.
Site inspection conducted by , shadowed by on 06/10/2021.
VMD sampling conducted by and supervised by on 06/10/2021.
Diganostic taken by and on 06/10/2021. [Original PDF]

Case Number: 2022-0572


Download Stock origin: Landcatch/Hendrix Genetics
Input of stock onto site: Wk12 2022
Treatment history:
First SLICE treatment was conducted in June (14-21/06/2022). Increase in gill health issues on site appearing in September promoted first H2O2 treatment from 02-07/10/2022 and 19-20/10/2022. FW treatments have been conducted between these with a duration of 3 hours. Planned H2O2 treatment in Wk47.
Health Issues: AGD inentified on site in September following potential environmental damage which was emphasised by histology reports. Mild PRV diagnosed, as well as Branchiamonas cysticola, PGD and Tenacibaculum maritum. October health visits conducted routine health screening. Following continued issues, continued high levels of PGD and AGD were reported on 27/11/2022 by health reports with last internal visit being on 15/11/2022.
2022: June, 6; August, 605 (due to freshwater treatment); September, 54; October, 95; Novemeber, 15.
Wrasse on site sourced locally or from Isle of Skye (all wild caught).Wrasse movement records were also inspected.
Site visit: first set of 10 pens inspected. Pens 7 and 8 are the pens with the highest mortality in this first set. ~20 moribund and letharic fish were seen around the sides of the pens worst affected, many of which were exhibiting gasping behaviour. On the second set of 10 pens, pen 13, 17 and 18 were the most affected pens. During the inspection two pens were seen recieving
Paramove 50 treatments.Current plan on site is to conduct Paramove 50 treatments on all the pens in the next week fews, should weather allow. AGD is the noted as the primary cause of mortality on site. Company biologist and cleanerfish coordinator on site supervising treatments. Wrasse are only creeled out during FW treatments, but hides allow for wrasse to seek shelter during H2O2 treatments. Wrasse were seen in all of the pens and appeared to be healthy. All fish sampled were moribund and lethargic. [Original PDF]

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