Site Details: Nevis A
PH41 4PX
Water type: Seawater
Cumulative mortality over full production cycle
Nevis A Production cycle end date: Oct 2019
Total losses: 25.5 %
Nevis A Production cycle end date: Aug 2021
Total losses: 5.2 %
Nevis A Production cycle end date: Nov 2022
Total losses: 46.8 %
Fish Health Inspectorate mortality
12/09/22-18/09/22
4,649
1.10%
19/09/22-25/09/22
19,385
4.70%
26/09/22-02/10/22
27,017
6.90%
02/10/22-09/10/22
20,473
5.60%
10/10/22-16/10/22
28,576
8.30%
17/10/22-23/10/22
83,900
26.60%
24/10/22-30/10/22
19,480
15.40%
16/09/24-22/09/24
3,855
1.4%
Inspection reports
Case Number: 2021-0182
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LUM - Swansea, WRS - Orkney
Since input lice above CoGP: 23/6/2020 0.56AF, all other weeks below. Very low numbers.
Only operator in CoGP management area.
Cleaner fish observed on site, salmon deeper in the pens and at times challenging light conditions resulting in decreased visibility. Seal observed near one of the pens during visit. Seal pro nets are being used on site and seals have so far not caused any problems. No moribund or lethargic fish observed. Fish sampled for VMD appeared healthy and in good condition.
Cleaner fish mortality records: Mortality in last 4 weeks between 24-74 per week for the entire site for both wrasse and lumpfish. Increase in mortality wk28 2020 with a peak in wk30 2020 at 2,353 morts, then slowly decreasing. Back to background level wk43 2020. Elevated mortalities related to treatments and some higher sea teamperatures for lumpfish.
Database entry records mortalities by different species but exports from the database don't reflect this. Company who provided the database is currently working on improving this.
Paperwork completed remotely on 3/6/2021 by , shadowed by . Physical site inspection on 9/6/21 by [Original PDF]
Case Number: 2022-0532
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The site has been affected by the swarm of the hydrozoan Muggiaea Atlantica which has occurred throughout west coast
Mainland Scotland through to W. Shetland from end of August causing progressive gill inflammation, this combined with seasonal AGD resulted in CGD with associated high mortality.
Lumpfish came on from Bantry Marine Station, wrasse on site are wildcaught in Orkney.
Mortality events since last inspection:
Wk39 22: 27,017 (6.89%)
Wk38: 19,385 (4.7%)
Wk37: 4,649 (1.1%)
Wk34 21: 75 (1.5%)
Wk31: 957 (1.3%)
Wk30: 1,022 (1.1%)
2021 mortalities attributed to handling events during final harvesting of the site. 2022 mortalities all attributed to poor gill health.
Dead fish and waste are usually incinerated on site, however, due to the large volumes generated during the mortality events, mortalities were transported to Mallaig where they were uplifted by and taken to Ayr for disposal.
The last treatment of the cycle was a peroxide bath completed between 6-9th October 22.
Staff have been harvesting the site which was fallow on 31/10/2022.
Bad weather warning on day of inspection. Site was visited and 5 moribunds were removed from 2 cages for diagnostic sampling. Due to high swell and high winds, only these 2 cages were inspected as unsafe to remain on site. Fish in these 2 cages were lethargic with several moribunds observed in each. Fish removed for sampling had high lice burdens and fish were observed jumping in both cages.
Case sheet was updated and diagnostic report was re-issued on 21/11/2022 due to an update to a correction in the stock origin from the business. A statement was missing from the re-issued report, so a further report was issued on 23/11/2022. [Original PDF]