Average female lice per fish

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Salmon Scotland mortality

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Cumulative mortality over full production cycle

North Shore Production cycle end date: Mar 2018
Total losses: 35.3 %

North Shore East Production cycle end date: Mar 2018
Total losses: 31.3 %

North Shore Production cycle end date: Feb 2020
Total losses: 35.2 %

North Shore East Production cycle end date: Feb 2020
Total losses: 35.2 %

North Shore Production cycle end date: Sep 2021
Total losses: 6.2 %

North Shore East Production cycle end date: Mar 2022
Total losses: 11.3 %

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Inspection reports

Case Number: 2020-0030

Download Enhanced containment inspection carried out following report of circumstance which may have given rise to the risk of escape -
MSe191219SAL1.
Enhanced sea lice inspection carried out following recommendation during inspection of site on 29/10/19 (case number 2019-
0647)
Site fallow since 6 February 2020
Escape investigation
APB submitted escape notification to FHI on 20/12/19 of an incident which gave rise to the risk of an escape occurring on
19/12/2019. Inspection of dive records on site showed the incident occurred on 12/12/19. Site manager advised that updated notification forms should be submitted, detailing the correct date.
The hole in the net was discovered during a routine dive inspections of nets. A hole was observed at the bottom of the net on cage 6, no holes observed in nets of other cages. The hole was 'T' shaped approximately 50 cm2 in size. It is suspected that the cone of the lift up system positioned at the bottom of the net, was shifted out of place during a storm event, usually the lift- up cone sits on a section of the net which is double panelled, held in place with tensioned ropes. The cone was observed as not sitting in the correct position by divers and it is suspected abrasions to the net caused the hole. The hole was repaired following its discovery. Lift-up system was raised and inspected for damage which may have caused jagged edges on the cone, no damage was observed. Lift up was put back in place and secured in position against the double panelled section of the net. Divers returned to site on 15/12/19 to check the repair work and inspect that lift-ups were all secured in pace in each cage. The site has been using cameras in cages to monitor the position of lift-ups. Divers had previously inspected the cages on 05/12/2019 with no holes in nets observed. The cage was harvested out on 08/01/2019. Final counts from harvest indicated that no fish had been lost. [Original PDF]

Case Number: 2021-0411

Download Fish on site were received from Loch Lochy and Glenfinnan. Stock originated from Inchmore and Loch Ailort.
234,028 Lumpfish taken on from Ocean Matters over 2 inputs in December 2020 and February 2021. 117,414 mortalities have occurred since input (49%). 63,668 wildcaught wrasse received on site in May, June, July and August 2021.
Mortalities and waste are stored in sealed bins on site until they are transferred to a common skip at the shorebase. The skip is collected by JD and taken to whiteshore cockles for landfill.
Average sea lice numbers increased in wk32 to 3.39 average adult female leps. The site responded with a Salmosan treatment which reduced the average count to 2.26 in the following week. The average number increased again in wk37 to
3.34 average adult females. A FW treatment was conducted that week, however the count increased the following week to 4.9.
A thermolicer treatment was conducted but the average count the following week was still sitting at 4.38 average adult
In response to the challenges on site from sea lice and the poor clearance rate of conducted treatments, a partial harvest of the site has now been completed, leaving only 6/17 cages stocked.
A further thermolicer treatment has been scheduled to begin w/b 18/10/2021, combined with a peroxide treatment for AGD.
Site is conducting live haul harvests to Mallaig processing plant.
No moribunds were observed in the majority of the cages. Moribund fish were removed from cages 11 and 18 for diagnostic sampling. Cage 11 appeared to be the worst affected pen on the site, with 9 moribunds observed in this cage.
Fish sampled for VMD appeared healthy and demonstrated a strong feed response. [Original PDF]

Case Number: 2023-0160

Download Salmon input in December were transferred from Glenfinnan and Loch Ness with some fungus issues.
Slice was administered from 30/03/2023 and fish are currently still in withdrawal. Due to issues with Moritella in particular in pen 15, florfenicol was prescribed from 13/03-26/03/2023. In addition, with lumpfish experiencing high mortalities as a result of
Pseudomonas, florfenicol was also administered to this population.
Due to increased signs of AGD, H2O2 treatment conducted wk 9. 18mins 1200 titrations.
Input of lumpfish was in December 2022. Lumpfish came from Ocean Matters Anglesey and Dorset Cleaner fish. Currently the site is holding two pens of cleaner fish - thinning to other pens.
Lumpfish Mortality 2023 (all attributed to Pseudomonas anguillaseptica):
Wk2 to Wk14 - 60509, 50.22%
Wk16 - 4978, 3.35%
Wk17 - 5070, 3.53%
Wk18- 2930, 2.11%
Currently no wrasse on site, but wrasse input scheduled for Wk 25 2023.
During site inspection it was noted that fish were currently on starve due to elevated levels of algae that may cause concerns to their health, in particular Chaetoceros sp. [Original PDF]

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