Average female lice per fish

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Salmon Scotland mortality

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Cumulative mortality over full production cycle

Coledeep Production cycle end date: Jan 2020
Total losses: 40.1 %

Coledeep Production cycle end date: Feb 2022
Total losses: 12.8 %

Coledeep Production cycle end date: Jun 2024
Total losses: 14.7 %

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Inspection reports

Case Number: 2021-0269

Download 1 dead observed near middle of cage 9, not fresh dead. No issues reported on site, sea lice numbers very low. There had been an increase of caligus at neighbouring sites, but numbers still low at Cole Deep.
1 fish sampled for VMD appeared healthy, with very few lice observed, no adult female Leps.
Very calm weather and good visibility. Fish were deeper in the water column, but cages being fed showed a good feed response. All feeding at GSS sites is now conducted remotely from a central 'control' room at the main office in Lerwick.
All harvests for site are planned to be dead haul. [Original PDF]

Case Number: 2023-0223

Download Fish visually inspected on site appeared healthy with only 2 lethargic fish observed across the whole site. Fish removed for vmd sampling showed no gross pathology when examined.
Mortality records showed mortality levels were at 1.63% & 1.51% for pens 9 & 7 over week 44 2023. This was attributed to failed smolts/ post transfer but overall site mortality level remained below reporting level. Whole site mortality reach 1.6% week
47 2023 (21/11 - 27/11), again attributed to transfer of stock and physical damage. This was reported to the FHI. [Original PDF]

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