Site Details: Lober Rock (SMH)
Scapa
Orkney
KW15 1SD
Water type: Seawater
Cumulative mortality over full production cycle
Production cycle end date: Oct 2021
Total losses: 7.8 %
Production cycle end date: Sep 2023
Total losses: 15.6 %
Fish Health Inspectorate mortality
31/10/22-06/11/22
4,484
2.80%
10/07/23-16/07/23
3,394
2.1%
17/07/23-23/07/23
2,928
1.8%
24/07/23-30/07/23
9,097
6.20%
21/08/23-27/08/23
1,134
1.40%
28/08/23-03/09/23
858
1.40%
04/09/23-10/09/23
978
1.60%
Inspection reports
Case Number: 2020-0515
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Case paperwork completed by on 24/11/2020.
Fish brought on site wk 51 2019. Increase in morts wk 12, 2020 (3854, 1% - below reporting level) due to physical damage from storms. Mortalities immediately dropped back to 0.1% wk 13.
VMD sampling by 26/11/20. Fish sampled at pier next to shorebase due to company H&S COVID-19 policy and concerns regarding movement from a higher tier to lower tier. Fish brought ashore by site staff, all fish appeared healthy. Site inspection re-scheduled for 2021 Q1. No issues reported on site. [Original PDF]
Case Number: 2021-0049
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Mortality recorded for Wk 20 - 0, due to workboat being unavailable due to being in dry dock and weather.
Paperwork completed remotely by , observed by 18/06/21, Site inspection 22/06/21 by , shadowed by
One fish removed for VMD appeared healthy and in very good condition, sampled by .
Due to issue with net washer (awaiting part from Norway), there is increased grow on nets, especially top 2m, it was reported that a net wash company were going to be employed to help stay on top of the growth.
Good visibility at time of inspection, fish were deeper in the water and showed good shoaling behaviour.
Three dead observed across site, one moribund observed, but nearer the middle of the cage. [Original PDF]
Case Number: 2023-0249
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Fish came on from Barcaldine and have been performing well this cycle.
Thermolicer is over on Hunda this week but is scheduled at Lober Rock next week and this is the last time the site is hoping to handle the fish before the site is fallowed in August.
3 Slice treatments at the beginning of 2022, followed by Azasure in May 22 and Paramove in July/September 22. Only freshwater treatmemts at the site so far in 2023.
Management area is not fallowed synchronously on a single year class basis. Risk assessment has been developed. This was inspected and found to be adequate.
Background CMS and HSMI have been detected on the site but are not causing mortalities.
Fish on site appeared in good health and were actively shoaling in the cages. <5 moribunds were observed across the site and were removed during the inspection and humanely culled.
Some fish were removed and aneasthetised for health checks during the inspection. Gills appeared in good health and very few lice were observed on the fish.
Fish removed for VMD sampling appeared in good external and internal health and demonstrated a strong feed response. [Original PDF]
Case Number: 2023-0358
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Site was re-visited following consecutive weeks of increased mortality. Salmon came on from Barcaldine Smolt Unit (FS1328) and had been performing well this cycle up until wk28 2023.
CMS and HSMI had been detected at the site earlier in the year but were not causing significant increases in mortality at that time. CMS, combined with environmental stress (low DO and presence of microjellies) has since been attributed to the cause of the increased mortality in wks28, 29 and 30.
Site is destocking through harvests and site will be fallow by the end of August/beginning of September 23. [Original PDF]