Average female lice per fish

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Salmon Scotland mortality

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Cumulative mortality over full production cycle

Marulaig Bay Production cycle end date: Apr 2019
Total losses: 4.2 %

Marulaig Bay Production cycle end date: Mar 2021
Total losses: 21.9 %

Marulaig Bay Production cycle end date: Aug 2021
Total losses: 14.4 %

Marulaig Bay Production cycle end date: Jul 2023
Total losses: 24.2 %

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Inspection reports

Case Number: 2021-0187

Download Mortalities above the reporting threshold since last inspection:
WK17 2021: 1.4% (CMS)
WK16: 2.09% (CMS)
Wk12: 2.8% (transfer from Maol Ban and CMS)
Elevated mortalities in weeks 19, 20 and 21 (2021) have all been attributed to CMS, combinbed with a Salmosan treatment beginning in Wk20 and ending in Wk21.
PD has been confirmed on site but not causing significant mortalities.
Some lethargic fish observed in all cages (~4/5 per cage). These fish had a higher than average lice load but this was not reflective of the population as a whole, which reflected the sealice counts that were inspected. Fish are due to be harvested, beginning this weekend (26/27th). Site expected to be fallow in a month.
Fish sampled for VMD appeared healthy and demonstrated a good feed response. [Original PDF]

Case Number: 2022-0481

Download Remote inspection carried out by on 05/10/2022.
Mortalities reported to FHI - 2022
Week 36 1.05% (8,666)
Week 37 3.18% (22,972)
Week 38 21.22% (139,023)
Gill health, jellyfish insult although nothing observed over trigger levels.
230,000 moved to Grey Horse Channel week 36/37 to thin site down. Freshwater wellboat (about 4,500 lost in transport). Risk assessment checked. Grey Horse Channel was fallow at the time of movement. The fish that were moved have improved dramatically. Mortalities were down to about 10 per pen 2 days after transfer.
Week 37 freshwater and peroxide treatments. Pens that were treated improved but those that weren't treated then spiked in week 38. Whole site completed in week 38. Mortalities have improved in week 39.
Lumpfish farmed from Dorset Cleaner fish Ltd.
Cleaner fish mortality not counted in the past 3 weeks due to Salmon mass mortality. Lumpfish mortality in week 36 (last recorded) was 0.31%.
Physical site inspection and sampling conducted by supervised by on 06/10/2022. F1-F5 samples by , supervised by . VMD samples collected by .
From the physical inspection of the stock, fish were observed to be quite lethargic in most pens. Few moribund fish were observed across the site. 5 fish were sampled for diagnostic purposes, fish were also removed for VMD sampling. The gills from the fish removed for sampling were observed to be very pale with shortened and ragged filaments. [Original PDF]

Case Number: 2023-0086

Download Movement of fish from Sconser Quarry on the 06/01/23, report from Patogen on the 26/01/23 of Moritella on site.
Movement records collected during REG. ECI inspection could not be carried out due to adverse weather conditions, follow-up inspection to be scheduled when remaining records will be checked. [Original PDF]

Case Number: 2023-0554

Download Changed to REG inspection due to SE winds preventing boats getting out to site.
Site cameras observed from the shorebase. Large swell. Fish observed through cameras were shoaling well.
Site fallowed in July 2023.
New input was from 28/09/2023
Wk48 - Treatment for AGD - Peroxide. Higher mortality due to treatment losses.
6 pens are currently stocked with lumpfish from Ocean Matters [Original PDF]

Case Number: 2024-0076

Download Stock origin: Glenfinnan (Aquagen), Loch ness (Stofinfiskur)
Lumpfish - first batch came with lorry on 26/11/2023; second batch arrived with wellboat in wk 6 2024 (w/b 05/02/2024).All lumpfish stock from Ocean Matters. Only one movement occurred since last inspection.
Hydrogen peroxide treatments 2024:
04/01 to 08/01
06/02 to 16/02 (all pens)
Pen 11 and 12 treated twice
FW treatments - conducted for 6/7hrs
Lumpfish mortality- last 4 weeks wk10, 2414, 4.98%, wounds & fin damage; Wk9, 1721, 3.43%, wounds & fin damage; Wk8, 523, 1.03%, wounds & fin damage; Wk7, 119, 0.23%, wounds & fin damage. Wound and fin damage attributed to transport and handling.
Lumpfish mortality - other peaks
2023 wk51        24,276        40.04% (emaciation)
2023 wk52        15,971        43.93% (emaciation)
2024 wk1        10,343        50.73% (emaciation)
2024 wk2        8,663        86.25% (emaciation)
2024 wk3        584        42.29% (emaciation)
Emaciation as a result of fish deployed at unsuitable weight for site. Note has been made by health manager that fish need to be over 40g in the future.
Health team out every two weeks; last health report 12/02/2024. AGD identified as an issue on site since 2023, with pen 12 being worst affected.
Paperwork inspected remotely on 13/03/2024.
Weather did not permit to conduct site inspection on 20/03/2024 [Original PDF]

Case Number: 2024-0112

Download Last health report: 12/04/2024 - Monitoring of heart abnormalities (mishaped and size), possible HSMI, CGD, AGD.
LUM mortality: Wk13: 1468 (3.44%), Wk14: 1103 (2.68%), Wk15: 2472 (4.09%), Wk16: 1225 (2.11%) - mortalities attributed to bad weather, pseduomonas and freshwater treatments.
Treatments: SLICE 04/04 to 13/04. Freshwater Wk15.
During the physical inspection fish were difficult to observe below water due to the weather conditions. Fish had a good feed response. Fish caught for VMD sampling appeared healthy internally and externally with only 2 caligus found on the caught fish. [Original PDF]

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