Site Details: Sound of Harris
The Pier, Lochmaddy
North Uist
HS6 5AA
Water type: Seawater
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 %
Fish Health Inspectorate mortality
22/08/22-28/08/22
8,616
1.69%
05/09/22-11/09/22
6,111
1.22%
12/09/22-18/09/22
10,026
2.02%
19/09/22-25/09/22
8,587
1.77%
26/09/22-02/10/22
12,500
2.62%
03/10/22-09/10/22
17,938
3.86%
10/10/22-16/10/22
8,054
1.80%
17/10/22-23/10/22
15,991
3.64%
24/10/22-30/10/22
9,880
2.33%
31/10/22-06/11/22
20,647
4.99%
07/11/22-13/11/22
16,810
4.28%
14/11/22-20/11/22
14,858
3.95%
21/11/22-27/11/22
10,721
2.97%
28/11/22-04/12/22
25,672
7.33%
05/12/22-11/12/22
20,929
6.45%
Inspection reports
Case Number: 2021-0336
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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
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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]
Case Number: 2024-0110
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Last ECI 06/10/021 / last visit (DIA and REP) 22/11/2022
Mortality: Wk 48 and 49 2022 - 25,672 (7.33%) and 20,929 (6.45%) - AGD. FHI were out in wk47 for diagnostic. Wk 13 2024
9057 (1.33%) - delivery losses.
Salmon started coming on to site 16/03/2024. Salmon came from the hatchery with some fungus however that has cleared up well since being in seawater. No cleanerfish on site.
Last cycles treatment: Weekly optimase and tricane use for health checks. SLICE June 2022, Freshwater Aug 2022,
Paramove in Oct and Nov 2022, Feb 2023. Salmosan March 2023, freshwater April 2023. AMX (alphamax) treatments July and August 2023.
Deadhaul harvest to Dingwall
Last health report is from the last cycle (October 2023) - PCRs - AGD and low level branchiomonas.
VMD - Pen 2 Clachbreac (FS0892)
In terms of containment: Weighted Seal pro nets, seal fence (collar), bird nets. Seal fence is tied to the top of the normal net.
Site is a deadhaul site so no live movements of fish during harvesting.
During the physical inspection, no moribunds were observed. Fish taken and sampled for VMD appeared healthy both externally and internally. Site staff and company biologist were carrying out health checks including gill swabs and lice counts while I was on site. All fish that I observed appeared healthy externally - a few scored low for AGD and a handful of caligus were observed over the 30 fish health checked. [Original PDF]