Site Details: Fishnish (A)

Fishnish
Isle of Mull
Argyll
-
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: Jun 2018
Total losses: 5.6 %

Production cycle end date: Oct 2020
Total losses: 6.7 %

Production cycle end date: Jun 2022
Total losses: 8.1 %

Production cycle end date: Jun 2024
Total losses: 24.9 %

Source

Fish Health Inspectorate mortality

Date:
14/03/22-20/03/22
Mortality:
2,844
Mortality Rate:
1.40%
Reason given: Viral Disease
Viral Disease
Mortality due to CMS.
Mortality returned to below 1% threshold in following week. FHI to monitor.

Date:
11/09/23-17/09/23
Mortality:
4,364
Mortality Rate:
1.1%
Reason given: Jellyfish; Gill Health
Jellyfish; Gill Health
Mitigation through threshold feeding management
Just over reporting level, first report this year, FHI to monitor.

Date:
18/09/23-24/09/23
Mortality:
11,319
Mortality Rate:
2.90%
Reason given: Gill Health related
Gill Health related
Mitigation through threshold feeding management
Business contacted: Second notification in cycle. Significant increase since previous weeks notification. Observed increase in Muggiaea sp. in area. Upwelling systems have been installed to disperse any detrimental organisms. Mortality in wk 39 (this week) is 1.1% so far. FHI to monitor

Date:
25/09/23-01/10/23
Mortality:
5,229
Mortality Rate:
1.4%
Reason given: Gill Health related
Gill Health related
Mitigation through threshold feeding management
Mortality has decreased by more than 50% this week. FHI continue to monitor.

Date:
02/10/23-08/10/23
Mortality:
4,160
Mortality Rate:
1.1%
Reason given: Gill Health related
Gill Health related
Mitigation through threshold feeding management
Mortality % continuing to decrease. FHI to monitor.

Date:
23/10/23-29/10/23
Mortality:
5,587
Mortality Rate:
1.5%
Reason given: Gill Health related
Gill Health related
CGD; environmental insult to gills in wk 41; mortality reducing into wk 44
Mortalities reported to be reducing the following week, FHI to monitor

Date:
30/10/23-05/11/23
Mortality:
6,767
Mortality Rate:
1.9%
Reason given: Gill Health related
Gill Health related
CGD; post environmental insult to gills, AGD treatment scheduled
FHI to monitor

Date:
13/11/23-19/11/23
Mortality:
7,894
Mortality Rate:
2.30%
Reason given: Gill Health related
Gill Health related
CGD
Visit scheduled. FHI to monitor.

Date:
20/11/23-26/11/23
Mortality:
12,433
Mortality Rate:
3.70%
Reason given: Gill Health related
Gill Health related
CGD; FW wellboat treatment scheduled.
FHI visited 28/11/23 (case number 20230543).

Date:
27/11/23-03/12/23
Mortality:
7,003
Mortality Rate:
2.20%
Reason given: Gill Health related
Gill Health related
CGD; FW wellboat treatment scheduled.
FHI visited 28/11/23 (case number 20230543). Awaiting results. FHI to monitor.

Date:
04/12/23-10/12/23
Mortality:
5,047
Mortality Rate:
1.60%
Reason given: Gill Health related
Gill Health related
CGD; FW wellboat treatment scheduled.
FHI inspected 28/11/23. Diagnostic samples taken awaiting results (20230543)

Date:
11/12/23-17/12/23
Mortality:
4,398
Mortality Rate:
1.4%
Reason given: Gill Health related
Gill Health related
CGD; FW wellboat treatment scheduled.
FHI visited 28/11/23 (2023-0543). Awaiting results. FHI to monitor.

Date:
25/12/23-31/12/23
Mortality:
4,600
Mortality Rate:
1.60%
Reason given: Gill Health related
Gill Health related
CGD; Weekly monitoring of gills; FW wellboat treatment scheduled.
FHI to monitor.

Date:
01/01/24-07/01/24
Mortality:
3,415
Mortality Rate:
1.20%
Reason given: Gill Health related
Gill Health related
CGD; Destocking through harvest
FHI inspected 28/11/23 and diagnostic samples taken (20230543)

Date:
27/05/24-02/06/24
Mortality:
1,195
Mortality Rate:
1.2%
Reason given: Handling
Handling
Gill health related. Business contacted: Current plans are to Business contacted: Current plans are to fallow the site by the end of July, however these plans may be subject to change.
Business contacted to get updated fallow plans. FHI to monitor.

Date:
03/06/24-09/06/24
Mortality:
1,082
Mortality Rate:
1.3%
Reason given: Handling
Handling
Post physical delicing; destocking through harvest. Business previously contacted: Current plans are to fallow the site by the end of July, however these plans may be subject to change.
FHI to monitor.

Source

Inspection reports

Case Number: 2021-0483


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Fish came onto site in December 2020 from the Barcaldine Smolt Unit.
Site had a Salmosan treatment in June, a thermolicer treatment was done in July, peroxide in September and Slice towards the end of September, beginning of October 21.
Fish were sitting deep in the water, but those osberved appeared to be healthy and were active. Lots of wrasse observed in the cages which also appeared to be in good health. 18,014 wrasse were input over June, July and August 21 and only 135 mortalities have been recorded since then. Site manager reported their effectiveness in keeping lice numbers low.
1 mortality and 1 moribund were observed across the site. Moribund was removed and culled. No clinical signs of disease so fish was not sampled. [Original PDF]

Case Number: 2023-0147


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The stock at Fishnish A have performed very well this cycle in the 160m pens so far, mortality on site has been low since input and the fish are developing well. Upon the physical inspection of the stock fish were observed shoaling well with no clinical signs of disease observed. Internally, fish sampled for VMD were healthy. [Original PDF]

Case Number: 2023-0543


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Fish came on from Barcaldine Smolt Unit, mix of Stofinfisker and Aquagen (cage 2 and 4) and aquagen only (cage 3). Site manager reported a significant variation in size between stocks, with the stofinfiskers not performing as well as they Aquagens.
Furunculosis, AGD and PGD have been detected on site. Fish were reported to have had lesions resulting from the infection however a course of Aquatet was completed in September and the fish have been reported to be feeding well again and gaining weight. Lesions had reportedly healed well following course of treatment.
Farmed lumpfish were imported from Ireland in December 2022 but staff struggled to remove them before a 12hr FW treatment so all were lost as a result, with none remaining on site. APHA have been made aware of this.
Wildcaught wrasse were stocked onto neighbouring Fishnish B site before being moved into Fishnish A in Dec 22. The site was also stocked with wrasse during the summer months over several inputs in June, July, August and September. Since input the site has lost ~50% of the wrasse. A total of 26,206 was input into the site, and the majority (12, 854) were lost during a FW treatment in December 22.
The wrasse that were observed on site generally appeared in good physical health. There were a handful of individuals observed across the site were slightly lethargic.
Mortality events above reporting threshold:
Wk37 2023: 4,364 (1.11%), wk38: 11,319 (2.92%), wk39: 5229 (1.39%), wk40: 4160 (1.12%), wk43: 5587 (1.54%).
Slice was administered in June, followed by a FW treatment in May, thermolicer treatments in June and July and an Aquatet treatment in September.
Moribunds were observed in all cages, but low numbers (~1-2). 5 moribunds were removed from cage 2 which was the worst affected cage in terms of mortality and diagnostic samples taken. Several poor performing fish were observed, particularly in cage 4. These were not moribund but were anorexic and some spinal deformities were noted.
Fish sampled for VMD appeared in good physical health externally, internally and responded well to feed.
Site staff informed inspector during visit that a seal had entered one of the cages on site recently. This had not been reported to the FHI as required and a retrospective notification was requested. Cage 4 was slightly mishapen which the site manager had attributed to strong currents at the site and a spell of bad weather recently. This had resulted in the top net being stretched and it had lifted away from the bottom net, leaving large gaps where predators could ingress.
Inspection and paperwork completed by , observed by [Original PDF]

Source