Site Details: Dunstaffnage

South Shian
Connel
Oban, Argyll
PA37 1SB
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: Oct 2019
Total losses: 13.1 %

Production cycle end date: Jul 2021
Total losses: 6.5 %

Production cycle end date: Jul 2023
Total losses: 56.5 %

Source

Fish Health Inspectorate mortality

Date:
10/10/22-16/10/22
Mortality:
7,945
Mortality Rate:
1.20%
Reason given: Environment; Gill health Related
Environment; Gill health Related
CGD; scheduled tarp peroxide treatment for AGD
First report this cycle. AGD confirmed on site, treatment (H2O2) starting wk 43, 2022. FHI to monitor
Date:
17/10/22-23/10/22
Mortality:
28,952
Mortality Rate:
4.50%
Reason given: Environment; Gill health Related
Environment; Gill health Related
CGD; scheduled tarp peroxide treatment for AGD in wk 43
DI to contact SSF at beginning of WK44, to review WK43 mortalities post treatment. Inspector in area WK 47
Date:
24/10/22-30/10/22
Mortality:
42,345
Mortality Rate:
6.90%
Reason given: Environment; Gill health Related
Environment; Gill health Related
CGD; tarp peroxide treatment for AGD in wk 43
Site contacted for further information. Mortality attributed to poor gill health - AGD confirmed and the site is reporting high counts for PGD. High levels of Muggiaea atlantica (jellyfish) have been identified during plankton counts. Paramove treatment conducted in week 43, post treatment mortality to the weaker, non feeding population. Mortality has begun to decreased following treatment. FHI to visit wk 45.
Date:
31/10/22-06/11/22
Mortality:
Mortality Rate:
0.90%
Reason given:
FHI visited week 45. Diagnostic samples taken. Originally reported 6.9% mortality which was actually the figure for the previous week (admin error). Mortality figure adjusted and below threshold.
Date:
14/11/22-20/11/22
Mortality:
38,158
Mortality Rate:
6.8%
Reason given: Environment; Gill health Related
Environment; Gill health Related
CGD, AGD treatment scheduled
FHI visited week 45. Diagnostic samples taken and complex gill issues confirmed. FHI to monitor.
Date:
21/11/22-27/11/22
Mortality:
64,018
Mortality Rate:
12.20%
Reason given: Environment; Gill health Related
Environment; Gill health Related
CGD, AGD FW treatment scheduled
Fw treatment taking place this week but treatments did start on on the 23/11/2022, some pens being split down to reduce biomass. Site inspection and sampling in week 45 FHI to monitor.
Date:
28/11/22-04/12/22
Mortality:
17,368
Mortality Rate:
3.70%
Reason given: Environment; Gill health Related
Environment; Gill health Related
CGD, Post AGD FW wellboat treatment
Mortality levels down on previous week but remains high. FHI visited 8/11/22 and diagnostic samples taken finding SRS and complex gill- case 20220541.
Date:
05/12/22-11/12/22
Mortality:
44,166
Mortality Rate:
9.70%
Reason given: Environment; Gill health Related
Environment; Gill health Related
CGD, Post AGD FW wellboat treatment
Mortality levels remains high. FHI visited 8/11/22 and diagnostic samples taken finding SRS and complex gill- case 20220541.
Date:
12/12/22-18/12/22
Mortality:
38,921
Mortality Rate:
9.50%
Reason given: Gill health Related
Gill health Related
CGD; AGD; destocking through harvest
Mortality levels remains high. FHI visited 8/11/22 and diagnostic samples taken finding SRS and complex gill- case 20220541. FHI to monitor.
Date:
19/12/22-25/12/22
Mortality:
22,106
Mortality Rate:
1.10%
Reason given: Gill health Related
Gill health Related
CGD; AGD; destocking through harvest scheduled
Site contacted for further information. Mortality primarliy attributed to AGD. The site are planning a freshwater treatment beginning of week 3. FHI to monitor.
Date:
26/12/22-01/01/23
Mortality:
14,109
Mortality Rate:
4.00%
Reason given: Gill health Related
Gill health Related
CGD; AGD; destocking through harvest scheduled
Site contacted for further information. Mortality primarliy attributed to AGD. The site plans to start desctocking through harvest next week. The site are planning a freshwater treatment beginning of week 3. FHI to monitor.
Date:
02/01/23-08/01/23
Mortality:
11,587
Mortality Rate:
3.40%
Reason given: Gill health Related
Gill health Related
CGD; AGD; increased FH surveilance
Business correspondent conacted for further information. AGD continuing to be the primary issue. Destocking plans have changed to increased removal of moribunds and weekly gill swabs. FW planned for Wk4. Routine visits increased. FHI to monitor.
Date:
09/01/23-15/01/23
Mortality:
10,227
Mortality Rate:
3.20%
Reason given: Gill health related
Gill health related
CGD, AGD, increased FH surveillance
Site visited by FHI Nov 2022, diagnostic samples collected. AGD continuing to be the primary issue. FW planned for Wk4. Company increased internal fish health surveillance. FHI to monitor.
Date:
16/01/23-22/01/23
Mortality:
7,574
Mortality Rate:
2.40%
Reason given: Gill health Related
Gill health Related
CGD; Secondary bacterial; AGD; increased FH surveilance
Site visited by FHI Nov 2022, diagnostic samples collected. AGD continuing to be the primary issue. FW planned for Wk4. Company increased internal fish health surveillance. FHI to monitor.
Date:
23/01/23-29/01/23
Mortality:
5,342
Mortality Rate:
1.70%
Reason given: Gill health Related; Environment
Gill health Related; Environment
Strong tides in week; CGD; Secondary bacterial; increased FH surveilance
Site visited by FHI Nov 2022, diagnostic samples collected. Fish health is starting to improve on site. AGD is still continuing to be the primary issue. FHI to monitor.
Date:
30/01/23-05/02/23
Mortality:
6,381
Mortality Rate:
1.90%
Reason given: Gill health Related; Bacterial disease
Gill health Related; Bacterial disease
CGD; Secondary bacterial; FW wellboat treatment scheduled
Business correspondent contacted for planned treatment dates. FHI to monitor.
Date:
06/02/23-12/02/23
Mortality:
4,062
Mortality Rate:
1.20%
Reason given: Gill health Related; Bacterial disease
Gill health Related; Bacterial disease
CGD; Secondary bacterial; FW wellboat treatment scheduled
Mortality decreasing from previous week. FHI to monitor.
Date:
20/02/23-26/02/23
Mortality:
4,062
Mortality Rate:
1.20%
Reason given: Gill health Related; Bacterial disease
Gill health Related; Bacterial disease
Post AGD wellboat treatment
Handling mortality. FHI to monitor.
Date:
26/06/23-02/07/23
Mortality:
2,635
Mortality Rate:
1.1%
Reason given: Gill Health;
Gill Health;
CGD; Destocking through harvest; Business contacted: Site planned fallow 2023wk28.
Business contacted for additional information. FHI to monitor.
Date:
03/07/23-09/07/23
Mortality:
2,896
Mortality Rate:
1.70%
Reason given: Gill Health;
Gill Health;
CGD; Harvesting to fallow
Site fallow, no further action required.
Date:
10/07/23-16/07/23
Mortality:
1,905
Mortality Rate:
2.6%
Reason given: Gill Health;
Gill Health;
CGD; Harvesting to fallow
Site fallow. No further action.
Date:
23/10/23-29/10/23
Mortality:
3,131
Mortality Rate:
1.2%
Reason given: Gill Health related
Gill Health related
CGD; environmental insult to gills in wk 41; mortality reducing into wk 44
First notifcation of mortalities of this input of fish, FHI to monitor.
Date:
13/11/23-19/11/23
Mortality:
3,512
Mortality Rate:
1.40%
Reason given: Gill Health related
Gill Health related
CGD
2nd notification since input. Mortality rate stable. FHI to monitor

Source

Inspection reports

Case Number: 2020-0367


Download Paperwork (excluding movement records), completed remotely by JET on 11/09/2020
Farm management agreement with Mowi Scotland Ltd in place. Scottish Sea Farms hold a memorandum of understanding and farm management statement with Dawnfresh farming Ltd, the other operator in the area. Risk assessment in place for the management area not being fallow, due to continuous stocking by Dawnfresh - Businesses share sea lice data and treatment plans as well as visits between sites.
Site inspected by JET on 16/09/2020
Movement records inspected and copies taken.
Fish sampled for VMD appeared healthy [Original PDF]

Case Number: 2022-0226


Download plan to go up to 10 120m pens from 4 pens.
Splitting down pens in October to reduce biomass.
Site stocked on 8th and 9th of May 2022 from Barcaldine.
Slice treatment has just started on day of visit. This is the second scheduled slice treatment since the input of the fish.
No Cleanerfish mortality observed in last 4 weeks. Only small amount of Cleanerfish currently on site.
Fish were feeding deep and were difficult to catch for VMD - Fish observed appeared healthy and clear of lice. Fish sampled for VMD appeared healthy and showed no clinical signs of disease, no lice were observed and gills looked healthy. [Original PDF]

Case Number: 2022-0541


Download Mort events 10/10 - 1.2%- Gill health environmental - 7945 fish- scheduled peroxide for AGD treatment
Mort events 17/10 - 4.5%- Gill health environmental - 28952 fish- scheduled peroxide for AGD treatment
Mort events 24/10 - 6.9%- Gill health environmental - 42345 fish- CGD scheduled peroxide for AGD treatment
Mortality attributed to poor gill health - AGD confirmed and the site is reporting high counts for PGD. High levels of Muggiaea atlantica (jellyfish) have been identified during plankton counts. Paramove treatment conducted in week 43, post treatment mortality to the weaker, non feeding population. Mortality has begun to decreased following treatment.
Morts; 31/10 - 8/11/22 -9 Days 6758 fish 1.18%/site lice levels at last count ; adult female - zero, total 0.33 all stages wild caught wrasse on site; Skye, Wrasse mortality has been low
Paramove treatment week 43 for gill issues. 5 slice treatments since input, last one 18/9/22
Site thermometer used as error in T146
87000 morts in October from 99235 totals morts since input.
On inspection moribund fish observed in pen margins. Lesions observed on many fish, some single deep lesions and some fish with many lesions all over body surface. Lesions appeared in August prior to mort issues and bloom.
Mortalities generally incinerated on site but with increased mortalities incinerator unable to manage. Morts are been taken whole and stored at the shore base in Loch Spelve as this site is currently not stocked, is the only site in the disease managements area and Dunstaffnage does not have a suitable shore base. Morts been collected by Billy Bowie. Transport doc are at Spelve shore base so could not confirm the final destination of morts. [Original PDF]

Source