Site Details: Quanterness

Crowness Point
Hatston
Kirkwall, Orkney
KW15 1GP
Operator: Cooke Aquaculture Scotland 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 2018
Total losses: 16.7 %

Production cycle end date: Aug 2019
Total losses: 7.3 %

Production cycle end date: Aug 2020
Total losses: 5.2 %

Production cycle end date: Dec 2021
Total losses: 10 %

Source

Fish Health Inspectorate mortality

Date:
07/11/22-13/11/22
Mortality:
10,344
Mortality Rate:
7.39%
Reason given: Gill Health
Gill Health
Gill Health
Retrospective report, subsequent reports had been checked. FHI visit scheduled.
Date:
21/11/22-27/11/22
Mortality:
2,083
Mortality Rate:
1.61%
Reason given: Gill Damage
Gill Damage
First report this cycle. FHI to monitor.
Date:
28/11/22-04/12/22
Mortality:
8,491
Mortality Rate:
6.66%
Reason given: Sealice Related
Sealice Related
Mortality returned below threshold the following week. FHI to monitor.
Date:
26/12/22-01/01/23
Mortality:
1,347
Mortality Rate:
1.16%
Reason given: Predator/Gill Damage
Predator/Gill Damage
Increased mortality following week below threshold. Business correspondent contacted for further information. HOPE nets fitted and tensioned. FHI to monitor.
Date:
09/01/23-15/01/23
Mortality:
3,582
Mortality Rate:
3.13%
Reason given: Sealice Related/Predator
Sealice Related/Predator
Mortality dropped below reporting level for week 1 before going above in week 2. Business correspondant contacted and mortality levels still reporting levels for wk 3 but are reducing. FHI to monitor.
Date:
22/01/23-29/01/23
Mortality:
1,191
Mortality Rate:
1.07%
Reason given: Predator/Sea lice managment
Predator/Sea lice managment
Predator/Sea lice managment
Site contacted for further information. Mortality reported is thought to be caused from a combination of seal predation and treatment loss from a recent mechanical treatment. The site are planning a future treatment with salmosan. FHI to visit w/b 06/02/2023
Date:
23/01/23-29/01/23
Mortality:
1,229
Mortality Rate:
1.12%
Reason given: Predator/Other
Predator/Other
FHI visit wb 06/02/23.
Date:
06/02/23-12/02/23
Mortality:
3,843
Mortality Rate:
1.18%
Reason given: Sealice Related/Predator
Sealice Related/Predator
FHI visited wb 06/02/23. FHI to monitor.
Date:
13/03/23-19/03/23
Mortality:
2,542
Mortality Rate:
2.44%
Reason given: Handling/Predator
Handling/Predator
FHI visited wb 06/02/23. FHI to monitor.
Date:
08/05/23-14/05/23
Mortality:
1,974
Mortality Rate:
1.73%
Reason given: Predator
Predator
FHI visited wb 06/02/23. No clinical signs of disease or moribund fish observed. Feed response was good. FHI to monitor.
Date:
15/05/23-21/05/23
Mortality:
1,242
Mortality Rate:
1.11%
Reason given: Predator
Predator
FHI visited wb 06/02/23. No clinical signs of disease or moribund fish observed. Feed response was good. FHI to monitor.
Date:
31/07/23-06/08/23
Mortality:
2,054
Mortality Rate:
2.01%
Reason given: Predator/Environmental
Predator/Environmental
Site contacted for further information : Mortality on site is mainly being driven by poor gill health following a recent enviromental insult. Some mortality has also been caused by seal attacks.
FHI to monitor.

Source

Inspection reports

Case Number: 2021-0295


Download Smolts came on from Yetts O'Muckart (FS0371) in April 2020.
All mortalities are transferred to Doon Bay in sealed bins where they are collected by a Cooke road lorry and transferred to
Pelagia in Bussy, Shetland where they are ensiled.
Site has had very low mortality since input and fish are reportedly doing very well, with high conversion rates observed across both stocks.
Average lep numbers across the site are extremely low. Caligus numbers have increased slightly in the last few weeks but are not at a level where intervention is deemed necessary. No treatment planned at this time.
Deadhaul harvests are taken to Kirkwall processing plant within the disease management area. No discharge into DMA. No live movements of fish off this site.
Sites within FMA are not fallowed synchronously on a single year class basis, but there is a documented risk assessment for this which was made available during the inspection.
A few moribunds were observed across the site that had a higher than average lice load, however this was not reflective of the whole population which appeared healthy. Moribunds were removed at time of inspection and humanely dispatched. No other clinical signs of disease were observed so fish were not sampled for diagnostics.
Fish sampled for VMD appeared healthy and demonstrated a strong feeding response. [Original PDF]

Case Number: 2023-0033


Download In the current cycle sea lice levels (adult female leps) were elevated on input early treatments appeared to have been successful but since wk 01 2023 where a peak of 4.54 was recorded numbers have remained elevated with week 4 being 3.37 peaks in mortality: 2022 post input wk45 10344 (7.39%) gill health, wk 47 2083 (1.61%) recorded as other, wk 48 8491
(6.66%) recorded as sea lice(post treatment), wk 52 1347 (1.19%)
2023 wk 1 643 (0.56%) wk 2 3582 (3.13%) sea lice (post treatment) and predator, wk 3 1191 (1.07%) sea lice (post treatment) and predator, wk 4 1229 (1.12%) 'other' and predator.
The site only has discharge consent for EXCIS (cypermethrin) however fish were treated with salmosan on a well boat and medicines discharged at the Bay of Ham site which has consent.
Fish transferred From Meil Bay in November and were treated during transfer with FW. 7-11 November for AGD, week 48 treated with thermolicer, week 2 2023 hydrolicer all 8 pens completed, salmosan week 4 2023
Sea lice numbers have been problematic, hydrolicer treatment has initial good clearance however lice reattached post treatment. Salmosan treatment last week is yet to have a post treatment count conducted.
Inspection of stocks was limited due to high winds, pens were inspected from the boat. Fish showed good feed response , the two fish caught for VMD sampling were in good condition with no clinical signs of disease or gross pathology noted. One fish had ~5 adult female leps the other had 0.
Given the elevated sea lice numbers recorded an enhanced sea lice inspection was conducted. Due to the weather, lice counting procedures were demonstrated on the fish removed for sampling . [Original PDF]

Source