Site Details: North Voe

Gremista
Lerwick
ZE1 0PX
Operator: Scottish Sea Farms 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 2018
Total losses: 40.7 %

Production cycle end date: Jul 2019
Total losses: 12.7 %

Production cycle end date: Nov 2020
Total losses: 34.5 %

Production cycle end date: Jan 2023
Total losses: 32.6 %

Source

Fish Health Inspectorate mortality

Date:
04/04/22-10/04/22
Mortality:
3,649
Mortality Rate:
1.4%
Reason given: Handling
Handling
Post net change; mortality returned to below reporting threshold in following week
Site recently visited by FHI (08/03/2022). Handling event (net changes) has exacerbated mortalities. No further action as mortalities have decreased below thershold in Wk15.
Date:
11/04/22-17/04/22
Mortality:
3,282
Mortality Rate:
1.20%
Reason given: Handling
Handling
Site visited 8/3/22 (2022-0041) with no issues at the time of visit. Handling event (net change) causing mortality, second consecutive week of increased mortality. Mortality though to have returned below reporting level for wk16. FHI to monitor.
Date:
02/05/22-08/05/22
Mortality:
2,762
Mortality Rate:
1.1%
Reason given: Sea Lice related
Sea Lice related
Post wellboat treatment
Mortality has been attributed to post wellboat FW treatment. FHI to monitor and see if figures reduce to below 1 in Wk 19.
Date:
13/06/22-19/06/22
Mortality:
4,229
Mortality Rate:
1.70%
Reason given: Handling
Handling
Post treatment with wellboat.
Mortality returned below threshold the following weeks. FHI to monitor.
Date:
28/11/22-04/12/22
Mortality:
4,448
Mortality Rate:
1.70%
Reason given: Maturation
Maturation
Maturation; on harvest schedule
FHI to monitor.
Date:
12/12/22-18/12/22
Mortality:
3,606
Mortality Rate:
1.90%
Reason given: Gill health Related
Gill health Related
CGD; destocking through harvest
Targetted harvesting in increased mortality pens. Freshwater treatments ongoing. Suspected CMS. FHI to monitor.
Date:
02/01/23-08/01/23
Mortality:
1,857
Mortality Rate:
2.20%
Reason given: Gill health Related
Gill health Related
harvesting to fallow in wk 2
Site planned to be fallow by 15/01/2023. FHI to monitor.
Date:
09/01/23-15/01/23
Mortality:
628
Mortality Rate:
1.40%
Reason given: Gill health related
Gill health related
site fallow within week
Site planned fallow this week. No further action.

Source

Inspection reports

Case Number: 2022-0041


Download During the site inspection, fish were seen to be swimming deep and occasionally seen shoaling.
Fish at harvest are transferred off site through deadhaul.
Remote inspection conducted by on 01/03/2022 while shadowed by .
Site inspection confucted by on 08/03/2022 and supervised by .
VMD samples taken on 08/03/2022 by , and supervised by
Sampled fish were observed to be in good health and exhibited no clinical signs of disease. [Original PDF]

Source