Site Details: Inchmore

Dalchreichart
Glenmoriston
Inverness-shire
IV63 7YN
Operator: Mowi Scotland Ltd
Water type: Freshwater

Fish Health Inspectorate mortality

Date:
24/01/22-30/01/22
Mortality:
99,432
Mortality Rate:
12.95%
Reason given: Unviable eggs & Alvin
Unviable eggs & Alvin
Spoke to site contact as business contact not available. Mortality of ova and hatch failure a result of poor quality of ova from at intake. Boxes arrived with ova stress hatching in packaged boxes. Ova were also uncharacteristically soft on arrival. Light treatment conducted to flush any fungus: 30ppm of bronopol and 35ppm of formaldyhyde. The treatment has been successful and remaining alevins are doing well.FHI to monitor.

Date:
07/02/22-13/02/22
Mortality:
274,496
Mortality Rate:
9.14%
Reason given: Unviable eggs & Alvin/ Hatch Mortalities
Unviable eggs & Alvin/ Hatch Mortalities
Spoke to site contact as business contact not available. Mortality of ova and hatch failure a result of poor quality of ova from at intake. Boxes arrived with ova stress hatching in packaged boxes. Ova were also uncharacteristically soft on arrival. Light treatment conducted to flush any fungus: 30ppm of bronopol and 35ppm of formaldyhyde. The treatment has been successful and remaining alevins are doing well. FHI to monitor.

Date:
07/03/22-13/03/22
Mortality:
415,707
Mortality Rate:
6.65%
Reason given: Unviable Eggs & Alvin / Hatch Fail
Unviable Eggs & Alvin / Hatch Fail
Mortality was caused by egg quality issues, a lot of stress hatching occurred once the eggs arrived which resulted in increased fungus pressure resulting in increased picking.
FHI to monitor

Date:
04/04/22-10/04/22
Mortality:
295,959
Mortality Rate:
4.04%
Reason given: Unviable Eggs & Alvin / Hatch Fail
Unviable Eggs & Alvin / Hatch Fail
Site manager contacted. Batch of eggs arrived with a high number of mortalities from Aquagen's Holywood site. This has been observed twice already this year and has been attributed to poor quality of eggs with added deterioration of eggs occuring also as a result of transport. Teams have been sorting through the eggs to salvage remaining hatched/viable eggs. W/b 11/04/2022 similar mortalities seen, therefore forecast high mortalities for that following week. FHI to monitor.

Date:
11/04/22-17/04/22
Mortality:
266,768
Mortality Rate:
3.79%
Reason given: Unviable Eggs & Alvin / Hatch Morts
Unviable Eggs & Alvin / Hatch Morts
Update of other mortality at Inchmore: 1st feeding to 5g, 0.37%, 9445, poor performers; 5g and over, 0.33%, 2917, background mortality
Mortality below reporting level. FHI to monitor.

Date:
09/01/23-15/01/23
Mortality:
455,358
Mortality Rate:
10.51%
Reason given: Unviable Eggs
Unviable Eggs
Business contacted. Poor batch of eggs, investigation ongoing. No further report anticipated, remainign alvins appear to be doing well. FHI site visit planned w/b 13/2/23.

Date:
24/07/23-30/07/23
Mortality:
172,726
Mortality Rate:
9.39%
Reason given: Poor genetics
Poor genetics
business contacted: poor quality ova, stress associated with vaccination & handling, possibly some water quality parameters not ideal. Overall thought to be acute stress event on fish that were of poor quality.
FHI to monitor.

Date:
24/07/23-30/07/23
Mortality:
421,796
Mortality Rate:
10.54%
Reason given: Poor genetics
Poor genetics
business contacted: poor batch of eggs, some not coming onto feed and even those feeding poor quality and causing mortality
FHI to monitor.

Date:
31/07/23-06/08/23
Mortality:
1,135,167
Mortality Rate:
36.21%
Reason given: Event Mortality
Event Mortality
FHI inspected site WK 32 and diagnostic samples taken

Date:
22/01/24-28/01/24
Mortality:
296,057
Mortality Rate:
15.77%
Reason given: Poor egg quality
Poor egg quality
23/02/2024 update - Business contacted: dead ova from poor performing batch.
Batch has now been culled. No further action.

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Inspection reports

Case Number: 2020-0087


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Dead fish and waste incinerated on site unless volumes are too high for the capacity of the incinerator. In these instances, waste is collected by Billy Bowie and taken to Dundas Chemicals.
Very few moribunds and 4 mortalities observed across the site.
The site is currently vaccinating against SAV. Mortalities have therefore been attributed to vaccination losses. [Original PDF]

Case Number: 2021-0508


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Remote inspection done on 18/11/21 by , observed by
Q1 fish - Q2 to be transferred to Loch Lochy
Q2 fish - to smolt at Inchmore before going to sea
Recent Mortalities
Q1 Spare (Mowi Ireland) - all transferred out to Loch Lochy 17/11/21
Week 45 - 191 fish (0.01%)
Week 44 - 280 fish (0.02%)
Week 43 - 321 fish (0.03%)
Week 42 - 218 fish (0.02%)
Q1 - Mowi Ireland
Week 45 - 1,411 fish (0.07%)
Week 44 - 1,484 fish (0.08%)
Week 43 - 890 fish (0.05%)
Week 42 - 794 fish (0.04%)
Q2 - Aquagen Holywood
Week 45 - 3,217 fish (0.12%)
Week 44 - 2,432 fish (0.09%)
Week 43 - 3,145 fish (0.11%)
Week 42 - 3,508 fish (0.13%)
Peaks in Mortality
Week 23 2021 - 117,908 fish (7.35%) - low oxygen issue while grading, reported to FHI
Week 26 2021 - 317,068 fish (11.22%) - hydrogen sulphide build up in supersat line while not in use, reported to FHI, APHA inspection conducted - supersat line now constantly aerated to prevent issue
Site inspection carried out on 25/11/21 by , supervised by .
The temperature in the fry tanks (Q2) was 14.2 degrees, while the temperature in the smolt tanks (Q1 - sampled for VMD) was
11.5 degrees. Very little mortality observed.
Some background mortality observed in the smolt tanks. The smolts are currently being vaccinated, with tanks 4, 6, 7, and 9 already completed. Very little machine damage observed on the fish.
The fish for the VMD were killed using TMS and sampled by , observed by . All fish looked healthy. [Original PDF]

Case Number: 2022-0166


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Q3 total mortality from input to date - 35.97% (690,554). Attributed to poor egg quality/failed eggs.
29% of that total occurred during the first 5 weeks. Mortality during the last 4 week period was 0.96% (24,183). Attributed to deformaties. Ova were a mix from Ireland and Dumfries.
Q4 total mortality from input to date 29.5% (982,778). 27.94% of the total losses occurred during the first 11 weeks incubation.
Mortality in the week before the inspection was 0.19%. Total mortality over the last 4 week period was 1.35% (41,179).
Q2 total mortality from input to date 19.22% (764,733) over an 8 week period. Mortality in the 2 weeks before the inspection was 0.59% (20,758). Total mortality over the last 4 week period was 4.46% (161,403).
Peaks in mortality all occurred within the first 6-weeks post stocking so were not required to be reported. However, business has reported these and a record has been made for them.
Fish observed in the tanks generally appeared in good health with only a few individuals displaying some damage to fins as a result of nipping.
Site thermometer used for biosecurity reasons.
Paperwork and inspection carried out 24/05/2022 by , supervised by . [Original PDF]

Case Number: 2023-0149


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Stock on site are a mix of Aquagens from Hollyrood in Dumfries and Stofinfisker. Next egg intake is due on Friday 7th April from Stofinfisker.
2022 Q2 smolts will be moved off to Hellisay, Grey Horse Channel and Cheesebay in May 23. Parr are also moved off the site to Loch Lochy, Glenfinnan and Loch Garry.
Elevated mortality was observed in both stocks following intake, but was attributed to failed/unviable eggs and poor egg quality. Although these mortalities occurred during the first 6 weeks post-stocking and so were not required to be reported, they were reported to the FHI and a record has been made.
Slight increase in mortality following vaccinations last week, but below reporting threshold. Fish vaccinated with Micro6, PD1 and Ridgeway Skyensis.
Site treats prophylactically at first feeding, generally one treatment per week of Cress and Aquacen until the fish reach ~0.7g.
Thereafter, the site only treats fish when required. Saprolegnia is often observed post grading so Q2's received a Cress and
Aquacen treatment last week following vaccination.
All age classes on site appeared in good physical health during the inspection and were active in the tanks with good feed responses demonstrated.
Fish sampled for VMD appeared healthy externally and internally.
Site thermometer used due to biosecurity risk. [Original PDF]

Case Number: 2023-0354


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Inchmore is made up of a Hatchery unit, a fry unit, and an ongrowing unit. The hatchery unit consists of 4 facilities (A, B, C &
D) and the fry unit has two sub units (A&B). Between the early hours of Friday 04 to Sunday 06 August 2023 (wk 31) Fry Unit B sustained a significant mortality of 1,132,880 fish (69.67%).
The cause of this mortality is currently unknown, the fish in this unit were transferred over from hatchery units C & D the previous week. There was an initial transfer related mortality of 420,040 fish (16.85%) immediately post transfer into fry unit B, however the mortality reduced and recovered soon after the initial transfer. Following this transfer (week 30), Fry unit B received its first routine treatment of formalin and cress at the beginning of week 31 (31 July - 02 August 2023) which saw a reduction in mortality from 13,027 on Monday 31 July to 3,944 on Thursday 03 August 2023 in the unit. The same batch of formalin and cress were also used to treat other units within Inchmore which did not sustain any mortality. Following the mortality event in week 31, the current stock left in Fry unit B have recovered well and mortality has now reduced to normal levels. PCR and Histology samples were taken from fish in Fry Unit B on Friday 04 August 2023, along with water samples by
MOWI's fish health team, results of which are still pending.
Upon the physical inspection of the remaining stock in Fry unit B, fish were observed shoaling well and responding actively to the movement of the fish health inspector and the site manager whilst walking around the tanks. A few lethargic / moribund fish were observed around the mortality filter in each tank. Tank 3 and 13 in Fry unit B sustained the highest count for mortality during the mortality event in week 31 of the tanks still remaining that contains stock, so fish were removed from these tanks for diagnostic sampling.
Inchmore's ongrowing unit is made up of two smolt sub units (A & B). Another significant mortality event occurred between week 28 to week 30 within smolt unit B, which is stocked with a mix of Q3 Stofnfisker and Aquagen fish. The mortality event peaked between weeks 29 and 30 which occurred immediately post vaccination. Mortality in this unit rose from 3.89% in week
29 to 8.49% in week 30. It is thought that this mortality may have been due to some form of compromisation from high losses which occurred previously in the production cycle at incubation. In week 31 mortality in this unit reduced to 0.42%, all Aquagen tanks received a post vaccination treatment of formalin and bronopol following the mortality the previous week, fish now appear to be doing well again.
From the physical inspection of smolt unit B, fish were observed shoaling well and responding positively to routine feeding regimes. The water quality appeared slightly dull and murky which was limiting to visibility, this was due to a recent clean of the unit's biofilters. A few lethargic/moribund fish were observed around the tank's mortality filters, several fish with deformities were also observed during the inspection of this unit. Fish were removed for diagnostic sampling from tanks 5 and 8 as these tanks were most heavily impacted by mortality during the recent event.
Mortalities amounting to anything less than one tonne are incinerated onsite, any excess mortality is removed by BR solutions as whole fish waste.
Stocking details as of 08/08/2023:
Smolt Unit A: 2,077,800 2023 Q4 AquaGen SAL @ 27.88g, 9 tanks
Smolt Unit B: 1,633,626 2023 Q3 AquaGen & STOFN SAL @ 67.08g, 9 tanks
Fry Unit A: 1,515,155 2024 Q2 AquaGen & STOFN SAL @ 4.13g, 15 tanks
Fry Unit B: 492,172 2024 Q2 STOFN SAL @ 0.38g, 15 tanks
Hatchery A + B: 4,075,366 2024 STOFN SAL @0.1g (OVA)
Hatchery C + D: Fallow.
Site thermometer used for biosecurity. [Original PDF]

Case Number: 2024-0095


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Last inspection to site was a diagnostic on 08/08/2023. Records have been checked from last ECI inspection 18/04/2023.
4 hatcheries, 2 fry units and 2 smolt units
Waste - if large volumes they will get an uplift to Barkip Biogas.
Started vaccinating in week 10 and will be vaccinating for another week.
Recent Mortalities: Q3s - Wk9: 1.46% (59,472), Wk10: 0.7% (27,891), Wk11: 0.75% (29,803), Wk12: 0.42% (16,640) - all mortalities due to failed hatchings and fish deformities. Q2s - Wk9: 0.05% (2333), Wk10: 2.23% (94,888), Wk11: 1.11%
(46,276), Wk12: 1.48% (60,854) - all mortalities were due to failed hatchings (just finished hatching late last week).
Previous mortality peaks over threshold: the Q3's for 2023 Wk30: 9.39% (172,726 fish) - after the jump in mortalities the health team investigated and concluded mortalities were due to specific genetics - Only 0.9% mortalities during this week were from the stokinfisker fish.
Bath treatments - Smolts: Aquacen and Pyceze 23/03/2025 (500dd). Last year due to compromised eggs there were lots of fungus resuting in bronopol formaldehyde and Cress treatments.
Health report 20/02/2024: 1/14 tested fish was positive for flavobacterium psychrophilum. Fish were sampled and tested after some fish in Fry B were lethargic and had lesions on their sides. Fish sampled showed nothing of significance internally except lethargic fish had not been feeding.
Week 4 and 5 2024 eggs were culled out (2.5million) due to failed eggs (Aquagen stock) - lost 16.09% (302,098 eggs) in the first week on site.
Site's own thermometer used due to biosecurity
Paperwork and physical inspection carried out 25/03/2024. During physical inspection, 3 tanks in the fry units had approx. 2 or
3 mortalities. Fish in the fry and smolt units were swimming well and in tanks that were being fed (some tanks were on starve due to upcoming vaccinations), good feed responses were seen. Fish that had just been vaccinnated and transfered into the smolt units had recovered from the anaesthetic and were shoaling well. In the hatcheries, staff were picking out fish with deformaties. Fish for VMD sampling were taken from the fry units (pre vaccinaction) - all fish appeared healthy for externally and internally. [Original PDF]

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