Site Details: Kerrera B

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

Kerrera B (Charlotte Bay) Production cycle end date: Oct 2019
Total losses: 14.5 %

Kerrera B (Charlotte Bay) Production cycle end date: Jul 2021
Total losses: 7.6 %

Kerrera B (Charlotte Bay) Production cycle end date: Jul 2023
Total losses: 48.2 %

Source

Fish Health Inspectorate mortality

Date:
17/10/22-23/10/22
Mortality:
3,353
Mortality Rate:
1.10%
Reason given: Environment; Gill health Related
Environment; Gill health Related
CGD gill insult from harmful hydrozoa
First report this cycle. FHI to monitor
Date:
31/10/22-06/11/22
Mortality:
74,785
Mortality Rate:
26.00%
Reason given: Environment; Gill health Related
Environment; Gill health Related
CGD; post tarp peroxide treatment for AGD; FH diagnostic visit
Company contatcted for further info. Current mortality for week 45 (Mon - Thu) 2%.
Date:
07/11/22-13/11/22
Mortality:
8,951
Mortality Rate:
4.20%
Reason given: Environment; Gill health Related
Environment; Gill health Related
CGD confirmed from FH diagnostic visit, AGD driving mortality
FHI received fish and diagnostic taken on 17/11/2022. Mortality predicted to continue being above reporting threshold for WK46. FHI to monitor.
Date:
14/11/22-20/11/22
Mortality:
44,721
Mortality Rate:
21.9%
Reason given: Environment; Gill health Related
Environment; Gill health Related
CGD, AGD tarp treatment within week
Following weeks morrtality data provided, see for details
Date:
21/11/22-27/11/22
Mortality:
16,048
Mortality Rate:
10.00%
Reason given: Environment; Gill health Related
Environment; Gill health Related
CGD, destocking highest mortality pens through harvest
Continuing eleveated mortality from gill issues and post treatmnent in week 46. Targetted harvests ongoing 6 pens have been fallowed with 4 remaining. Decision to be made on whether to harvest remaiining pens this is dependent on fish health. Site inspected and diagnostics taken on 17/11/2022. FHI to monitor.
Date:
28/11/22-04/12/22
Mortality:
2,694
Mortality Rate:
4.00%
Reason given: Environment; Gill health Related
Environment; Gill health Related
CGD, destocking highest mortality pens through harvest
Continuing elevated mortality from gill issues but mortality numbers down from previous week. FHI inspected and diagnostics taken on 17/11/2022 case 20220580 - AGD Paranucleospridia, epitheliocystic and SRS positive results.
Date:
05/12/22-11/12/22
Mortality:
654
Mortality Rate:
1.50%
Reason given: Environment; Gill health Related
Environment; Gill health Related
CGD; AGD
Mortality numbers down. FHI inspected and diagnostics taken on 17/11/2022 case 20220580 - AGD Paranucleospridia, epitheliocystic and SRS positive results.
Date:
12/12/22-18/12/22
Mortality:
578
Mortality Rate:
1.30%
Reason given: Gill health Related
Gill health Related
CGD; AGD
Mortality numbers are reducing. FHI inspected and diagnostics taken on 17/11/2022 case 20220580 - AGD Paranucleospridia, epitheliocystic and SRS positive results. FHI to monitor.
Date:
19/12/22-25/12/22
Mortality:
595
Mortality Rate:
1.40%
Reason given: Gill health Related
Gill health Related
CGD; AGD
Continuing elevated mortality from gill issues. FHI inspected and diagnostics taken on 17/11/2022 case 20220580 - AGD Paranucleospridia, epitheliocystic and SRS positive results. Updated on 15/04/2024 mortality rate changed from 2.8% to 1.4%.
Date:
26/12/22-01/01/23
Mortality:
600
Mortality Rate:
1.40%
Reason given: Gill health Related
Gill health Related
CGD; AGD
Site contacted for further information, only two cages left stocked onsite. Continuing elevated mortality from gill issues. FHI inspected and diagnostics taken on 17/11/2022 case 20220580 - AGD Paranucleospridia, epitheliocystic and SRS positive results. FHI to monitor.
Date:
02/01/23-08/01/23
Mortality:
556
Mortality Rate:
1.30%
Reason given: Gill health Related
Gill health Related
CGD; AGD; increased FH surveilance
Business correspondent contacted for further information. Two pens left on site. Increased fish health surveillance with weekly gill swabs and increase in routine inspections. FHI to monitor.
Date:
09/01/23-15/01/23
Mortality:
528
Mortality Rate:
1.30%
Reason given: Gill health related
Gill health related
CGD, AGD, increased FH surveillance
Site visited by FHI Nov 2022, diagnostic samples collected. Two pens left on site. Company increased internal fish health surveillance with weekly gill swabs and increase in routine inspections. FHI to monitor.
Date:
20/02/23-26/02/23
Mortality:
946
Mortality Rate:
1.10%
Reason given: Gill health Related; Bacterial disease
Gill health Related; Bacterial disease
Post AGD wellboat treatment
Handling mortality. FHI to monitor.
Date:
27/02/23-05/03/23
Mortality:
3,609
Mortality Rate:
4.10%
Reason given: Gill Health Related; Bacterial disease
Gill Health Related; Bacterial disease
Post AGD wellboat treatment, increased mortality removal
Site visitied by FHI 17/11/2022 and diagnostic samples taken, Results CGD and SRS. Business contacted for further detail on bacteria detailed as reason. Update- 15/3/23 A. salmonicida with background SRS
Date:
06/03/23-12/03/23
Mortality:
2,397
Mortality Rate:
2.80%
Reason given: Gill Health Related; Bacterial disease
Gill Health Related; Bacterial disease
Post AGD wellboat treatment, increased mortality removal
Site visitied by FHI 17/11/2022 and diagnostic samples taken, Results CGD and SRS. Business confirmed bacteria on site A. salmonicida with background SRS FHI to monitor
Date:
13/03/23-19/03/23
Mortality:
1,145
Mortality Rate:
1.40%
Reason given: Gill Health Related; Bacterial disease
Gill Health Related; Bacterial disease
Post AGD wellboat treatment
Site sampled 17/11/22 - AGD, SRS identified, FHI to monitor
Date:
27/03/23-02/04/23
Mortality:
889
Mortality Rate:
1.1%
Reason given: Gill Health Related
Gill Health Related
CGD
Harvesting to commence this week. FHI to monitor.
Date:
10/04/23-16/04/23
Mortality:
974
Mortality Rate:
1.2%
Reason given: Gill Health Related
Gill Health Related
CGD
Site correspondent contacted for further information. Only 4 pens still on site and complex gill disease a result of Muggia sp. bloom in 2022. FHI to monitor.
Date:
24/04/23-30/04/23
Mortality:
846
Mortality Rate:
1.30%
Reason given: Gill Health Related
Gill Health Related
CGD
Currently harvesting site, 4 pens left. Gill issues are the result of a bloom of harmful algae. Mortality now stabilized. FHI to monitor. Updated 15/04/24 Mortality number changed from 974 to 846 and mortality rate changed from 1.2% to 1.3%.
Date:
01/05/23-07/05/23
Mortality:
791
Mortality Rate:
1.20%
Reason given: Gill Health Related
Gill Health Related
CGD
Mortality remaining at 1.2% for 3 weeks. FHI to monitor
Date:
08/05/23-14/05/23
Mortality:
926
Mortality Rate:
1.40%
Reason given: Gill Health Related
Gill Health Related
CGD; Harvesting to fallow
Date:
15/05/23-21/05/23
Mortality:
967
Mortality Rate:
1.5%
Reason given: Gill Health Related
Gill Health Related
CGD; Harvesting to fallow
Fish numbers low, site soon fallow. FHI to monitor.
Date:
12/06/23-18/06/23
Mortality:
770
Mortality Rate:
2.0%
Reason given: Gill Health; Bacterial disease
Gill Health; Bacterial disease
CGD; Destocking through harvest
Business contacted for further information. FHI to monitor.
Date:
19/06/23-25/06/23
Mortality:
824
Mortality Rate:
2.20%
Reason given: Gill Health; Bacterial disease
Gill Health; Bacterial disease
CGD; Destocking through harvest
Site harvesting, decreasing numbers of fish on site. FHI to monitor
Date:
26/06/23-02/07/23
Mortality:
981
Mortality Rate:
2.7%
Reason given: Gill Health; Bacterial disease
Gill Health; Bacterial disease
CGD; Destocking through harvest; Business contacted: site planned to fallow 2023wk28.
Business contacted for additional information. FHI to monitor.
Date:
03/07/23-09/07/23
Mortality:
582
Mortality Rate:
3.20%
Reason given: Gill Health; Bacterial disease
Gill Health; Bacterial disease
CGD; Harvesting to fallow
Site Fallow, no further action required.
Date:
10/07/23-16/07/23
Mortality:
236
Mortality Rate:
1.7%
Reason given: Gill Health; Bacterial disease
Gill Health; Bacterial disease
CGD; Harvesting to fallow
Site fallow. No further action.

Source

Inspection reports

Case Number: 2020-0478


Download Remote inspection undertaken on 20/11/2020 by . Two UKAS assessors and also present.
Fish input in March
Wild caught wrasse from Scotland
Reportedly wrasse seem to be working well at keeping lice numbers low
AGD diagnosed, gill scores taken but not increased. Diagnosis from gill swab. Paramove 50 treatment used and was reportedly effective. PCR taken as part of routine surveillance for the business.
Current stock of salmon from Knock. Wrasse landed at Uig and Tobermory.
All mortality currently incinerated. Ensiler can be used if mortality is increased.
Trained fish health specialist on each SSF site. This person conducts lice counts, and routine histology samples. Anything more serious reported on site, a biologist or vet will be sent to site. FVG used.
Treatment vessel could operate in any of 35 SSF sites. Equipment and vessel disinfected between sites
No farm management statement between different businesses in the CoGP management area. An FMS is in place for all sites operated by SSF in the area.
Predation mitigation methods: bird nets, ADD (when required), tensioned nets, MML [Original PDF]

Case Number: 2022-0200


Download Fish came on from Barcaldine smolt unit (FS1328) in April 22. Site had been fallow since July 21.
Tenacibaculum confirmed on site and is reported to be the main cause for any observed mortality. Mortality across the site since input has been low (<1% each month).
SLICE conducted on 03/05 and 23/05 in response to increasing Caligus numbers. Treatments were successful and had good clearance.
Site conducts live harvests to South Shian.
Farms located within FMA are stocked with multiple yearclasses. A risk assessment is in place for this and was available for inspection.
Wildcaught wrasse from Uig put in last week (9th + 16th June). None observed in cages. Site manager reported that they sit deeper following input.
Fish appeared in good physical health but were observed jumping a lot due to an increased presence of jellyfish on site over the last few days. Many were observed in the water during the inspection.
Fish sampled for VMD appeared healthy externally and internally. [Original PDF]

Case Number: 2024-0093


Download Planed input wrasse in June - wild sourced
Gill score currently zero. Some Caligus observed but low numbers
Fish on from Barcaldine and Girlsta 17 and 18 Feb 2024
During mortality issues in October 2022 fish mortalities were moved to South Shian and macerated.
SLICE treatment started 12/4/24 and on-going until 19/4/24
Last cycle; peroxide and slice treatments for lice only. Fish on from Lismore West FW treated on transfer
Morts this cycle since input 541-seals, 343 lesions, 373 failed smolts, 100 fungus. Fungus issue on input and lesions observed on inspection of site. Have been tested for moritella but were negative 7/3/24.
Treatments not carried out in synchrony but FMS details that they can be where appropriate and under vet guidance.
Last sea lice count; pre-adults 0.13; Caligus 0.53;Average adult female leps 0.
On withdrawal for Optomease (Benzocaine) and SLICE.
Inspection and paperwork by , observed by .
Updated FMS received 12/6/24, all issues resolved. 17/6/24 [Original PDF]

Source