Site Details: Furnace

Furnace Quarry
Upper Loch Fyne
Furnace , Argyll
PA32 8YA
Operator: Bakkafrost Scotland
Water type: Seawater

Average female lice per fish

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Salmon Scotland mortality

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Cumulative mortality over full production cycle

Furnace Quarry Production cycle end date: May 2021
Total losses: 16.8 %

Furnace Quarry Production cycle end date: Feb 2023
Total losses: 25.7 %

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Fish Health Inspectorate mortality

Date:
19/09/22-25/09/22
Mortality:
1,395
Mortality Rate:
1.73%
Reason given: Handling (Post-treatment)
Handling (Post-treatment)
First report this cycle. FHI to visit week 41.
Date:
26/09/22-02/10/22
Mortality:
1,731
Mortality Rate:
2.18%
Reason given: Handling (Post-treatment)
Handling (Post-treatment)
FW wk 39
Transfer mortalities. Site inspected 12/10/2022 (case no. 2022-0487). FHI to monitor
Date:
21/11/22-27/11/22
Mortality:
760
Mortality Rate:
1.01%
Reason given: Sea Lice Related (Post-treatment)
Sea Lice Related (Post-treatment)
Site visited week 41. FHI to monitor
Date:
12/12/22-18/12/22
Mortality:
1,941
Mortality Rate:
2.63%
Reason given: Gill health
Gill health
Company biologist contacted. Mechanical treatment carried out combined with compromised gills attributed to increased in mortality rate. Due to size of the fish and issues, the planned harvest date will be brought forward and it is hoped the site will be fallow by the end of January 2023. FHI to monitor.
Date:
02/09/24-08/09/24
Mortality:
4,728
Mortality Rate:
5.14%
Reason given: Water Quality; Gill health related
Water Quality; Gill health related
First report this cycle. FHI to monitor.
Date:
09/09/24-15/09/24
Mortality:
1,709
Mortality Rate:
1.96%
Reason given: Water Quality; Gill health related
Water Quality; Gill health related
Second consecutive week. Mortality substantially decreased from previous week. FHI to monitor.
Date:
16/09/24-22/09/24
Mortality:
2,084
Mortality Rate:
2.44%
Reason given: Water Quality; Gill health related
Water Quality; Gill health related
Targeted harvests to begin wk 40/41.
FHI to monitor.
Date:
23/09/24-29/09/24
Mortality:
4,626
Mortality Rate:
5.54%
Reason given: Gill health related
Gill health related
Harvests
FHI to monitor.
Date:
30/09/24-06/10/24
Mortality:
2,368
Mortality Rate:
3.00%
Reason given: Gill health related
Gill health related
Harvests
FHI to monitor.
Date:
07/10/24-13/10/24
Mortality:
1,336
Mortality Rate:
1.75%
Reason given: Gill health related
Gill health related
Harvests
FHI to monitor.
Date:
14/10/24-20/10/24
Mortality:
966
Mortality Rate:
1.73%
Reason given: Gill health related
Gill health related
Harvests
FHI visit scheduled.
Date:
21/10/24-27/10/24
Mortality:
1,225
Mortality Rate:
2.24%
Reason given: Gill health related
Gill health related
FW scheduled wk 45
FHI visit wk44.
Date:
28/10/24-03/11/24
Mortality:
793
Mortality Rate:
1.48%
Reason given: Gill health related
Gill health related
FW scheduled wk 46
FHI inspection week 44. FHI to monitor.
Date:
04/11/24-10/11/24
Mortality:
823
Mortality Rate:
1.56%
Reason given: Gill health related
Gill health related
FW wk 46
FHI inspected week 44. FHI continue to monitor.
Date:
11/11/24-17/11/24
Mortality:
1,423
Mortality Rate:
2.74%
Reason given: Gill health related
Gill health related
FW wk 46
FHI inspected week 44. FHI continue to monitor.
Date:
18/11/24-24/11/24
Mortality:
574
Mortality Rate:
1.14%
Reason given: Gill health related
Gill health related
FW wk 46
FHI inspected week 44. FHI continue to monitor.

Source

Inspection reports

Case Number: 2022-0487


Download Site used to hold split of fish from other sites. Issued by: FHI Date of issue: 12/05/2020 No letharic or moribund fish observed. Water dark in colour - difficult to see stock on site. No issues or concerns. Slight increased mortality, especially cage 5 & 6 - suspected AGD, awaiting some results. Mortality dropped across the site in past week. Physical and freshwater treatments - 3 x hydolicer, 2 FW treatments one on transfer 13 Aug and the other 29 September [Original PDF]

Case Number: 2024-0415


Download Wild caught wrasse on site
Freshwater only (no FLS) used to treat the AGD.
Two full cages harvested on 07/10 (cage 3) and 09/10 (cage 4). These were harvested due to high mortality from AGD
Pseudo-nitzschia plankton bloom in the area over the last month had caused some mortality.
Last biologist report (from 21/10/24) states that the fish showed signs of PGD but little sign of AGD since last treatment. Also some sign of lesions. Gill health is reported to be stable
Biologist visits twice weekly.
During blooms fish fed alternate days
Freshwater treatment occurred on 29/07/24 all cages for AGD. Second freshwater treatment occurred on 05/09/24 also for
AGD. No FLS used. Gill swabs reportedly have shown the treatments have been successful at reducing AGD.
Moribund fish are removed as and when observed by site staff. Each cage is walked around everyday to remove moribund fish.
Wrasse numbers at harvest do not match-up with numbers counted or removed at harvest time. These losses are classed as black loss on the system. Up to 52% weekly black loss for wrasse on site since input. Input of 1,367 wrasse to cage 3 out of these 985 attributed to black loss. Input of 1,455 wrasse to cage 4 and 680 attributed to black loss. Both cages have now been harvested. Total wrasse black loss over the site is 51.32% (4,385 fish). Manager does not know how this discrepancy has come about.
All ballan wrasse stocked on site. Agreement written by Bakkafrost and signed by wrasse supplier states that all wrasse must be between 12-24cm. Wrasse supplier and site staff perform a visual check of wrasse size before/at input.
Environmental conditions are more favourable and mortality is reportedly reducing.
Site manager will continue to monitor fish health with the help of biologists and if health issues occur again the site will be harvested.
One moribund fish was observed on site during the inspection but was too deep to catch with a hand net
Accompanied by from the Animal and Plant Health Agency who asked questions regarding fish welfare and inspection of livestock. The case was referred to APHA following reports in increased mortality from the business [Original PDF]

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