Site Details: Sconser Quarry
Sconser
IV48 8TD
Water type: Seawater
Cumulative mortality over full production cycle
Production cycle end date: Sep 2019
Total losses: 21 %
Production cycle end date: Nov 2019
Total losses: 2.1 %
Production cycle end date: May 2021
Total losses: 25.8 %
Production cycle end date: Sep 2021
Total losses: 7.8 %
Production cycle end date: Dec 2021
Total losses: 19.6 %
Production cycle end date: Feb 2024
Total losses: 20.1 %
Fish Health Inspectorate mortality
21/11/22-27/11/22
16,154
1.64%
28/11/22-04/12/22
41,907
4.32%
05/12/22-11/12/22
17,304
1.87%
12/12/22-18/12/22
12,974
1.43%
20/03/23-26/03/23
14,293
2.24%
27/03/23-02/04/23
9,762
1.57%
27/03/23-02/04/23
6,761
1.18%
17/04/23-23/04/23
6,700
1.41%
28/08/23-03/09/23
3,652
1.54%
04/09/23-10/09/23
2,727
1.47%
02/10/23-08/10/23
4,513
1.37%
09/10/23-15/10/23
8,321
2.56%
16/10/23-22/10/23
6,613
2.09%
23/10/23-29/10/23
5,592
1.80%
13/11/23-19/11/23
5,218
1.00%
20/11/23-26/11/23
6,717
1.36%
27/11/23-03/12/23
7,204
1.48%
04/12/23-10/12/23
4,878
1.01%
12/02/24-18/02/24
5,142
2.86%
Inspection reports
Case Number: 2020-0462
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Records inspected remotely on 30/10/2020.
Lumpfish from Ireland stocked on site during March, July, August and October. Majority coming on site in October. Cumulative mortality for lumpfish prior to October input 21%, significant proportion attributed to post treatment losses.
Salmosan treatment carried out 28/07 - 05/08
Thermolicer treatment 24-25/09
Freshwater treatment carried out 14-21/10 for treatment of AGD
Average adult female lice numbers rose above CoGP criteria for treatment but below FHI reporting levels w/b 06/07/20 and w/b 21/09/20. Subsequent treatments (shown above) reduced numbers significantly on both occasions.
Site thermometer used due to battery failure in FHI thermometer
2 mortalities observed across site, these were removed by site staff. No moribund or lethargic fish observed.
Fish sampled for VMD appeared healthy [Original PDF]
Case Number: 2021-0530
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Remote inspection and physical inspection conducted by , observed by . Site thermometer used as inspector's thermometer not available. Only two cages stocked on site at the time of inspection due to harvesting. The site had experienced some mortality in October due to a previous gill insult/anaemia. The site was treated with freshwater in late
October followed by a Salmosan treatment in early November. From the inspection the fish appear healthy with no visible signs of disease observed. [Original PDF]
Case Number: 2023-0041
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No issues observed on site, Salmosan treatment was being conducted at time of inspection. Fish sampled for VMD appeared in good condition. 2 dead observed across site, not fresh dead, therefore not sampled. Site staff removed these for disposal at time of inspection.
Site consists of 7 x 160m pens, all pens have pole supports for top nets rather than the central support. The use of the pole supports was reported to have removed the potential for losses due to concussion on the central net support.
Sites operated from Maol Ban shorebase are numbered sequentially from north to south - Sconser Quarry - Cages 1 - 7, Maol
Ban - Cages 8 - 12 and Cairidh -Cages 13 -17
Weather conditions very changeable during the inspection.
Sea lice numbers have been increasing, but still below the increased monitoring level. Targeted treatments were being conducted. [Original PDF]