Site Details: Loch Leven (1)

Callert
Onich, Fort William
Inverness-shire
PH33 6SA
Operator: Mowi Scotland Ltd
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

Leven Production cycle end date: Sep 2019
Total losses: 9.3 %

Leven Production cycle end date: Mar 2021
Total losses: 3.3 %

Leven Production cycle end date: May 2023
Total losses: 1.6 %

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Fish Health Inspectorate mortality

Date:
04/03/24-10/03/24
Mortality:
11,362
Mortality Rate:
2.08%
Reason given: Bacterial Infection
Bacterial Infection
Business contacted: Moritella and Tenacibaculum were identified on site. Florfenicol treatment was admistered in February. Fish were responding to treatment, some moribund fish remain on site.
Business contacted for further details. FHI to monitor.

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Inspection reports

Case Number: 2021-0545


Download Dead haul harvests on site due to restricted access for wellboats.
Some wrasse movements onto site from Ireland.
Additional peaks of mortality:
Wrasse October 2021 7750 (mainly transport losses).
Lumpfish January 2021 6661 (mainly without diagnosis so with wounds/fin damage) , December 2020 4155 (handling/lice treatment, without diagnosis- fresh, wounds or fin damage), September 2020 6025 (mainly pseudomonas) August 2020 5752
(mainly handling but also pseudomonas)
Site manager was not available but assistant manager facilitated the inspection. [Original PDF]

Case Number: 2024-0055


Download Site inspected following suspicion of BKD reported by operator. Signs consistent with BKD were observed by company vet during routine sampling conducted on 08/07/24.
No dead, moribund or abnormally behaving fish observed during inspection, therefore no fish removed for sampling. Fish were observed feeding well and shoaling as normal.
Site consists of 4 groups of 4 x 24m2 steel pens. Site uses environets, reportedly changing these every two weeks during summer months and every three weeks during other times of year. These were reported to be very effective at minimising growth on the nets.
Harvests on site are reportedly conducted by dead haul. There are no plans to split fish from site this cycle and site manager reported that at present the intention is to harvest the site by spring 2025 before restocking in 2025 Q4.
Mortalities on site have been at a consistent level, no recent increased mortality noted. There was a peak recorded in WK 10
2024 - attributed to tenacibaculum. [Original PDF]

Case Number: 2024-0264


Download Informed by company of suspicion of clinical BKD on site. Two fish sampled (out of 20) showed granulomatous lesions in the kidney (one with lesions on liver and spleen too). IDN to be placed and inspection carried out to confirm or rule out presence of clinical BKD. [Original PDF]

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