Site Details: Bring Head
Scapa
Orkney
KW15 1SD
Water type: Seawater
Cumulative mortality over full production cycle
Production cycle end date: Jun 2018
Total losses: 13.5 %
Production cycle end date: Aug 2020
Total losses: 12.9 %
Production cycle end date: Apr 2022
Total losses: 13.8 %
Production cycle end date: Jul 2024
Total losses: 27.8 %
Fish Health Inspectorate mortality
21/03/22-27/03/22
957
2.00%
11/04/22-17/04/22
1,125
3.60%
11/09/23-17/09/23
9,598
1.6%
18/09/23-24/09/23
6,423
1.10%
25/09/23-01/10/23
6,703
1.1%
01/01/24-07/01/24
12,503
2.20%
08/01/24-14/01/24
7,646
1.4%
15/01/24-21/01/24
8,700
1.60%
22/01/24-28/01/24
15,189
2.9%
08/04/24-14/04/24
4,727
1.8%
22/04/24-28/04/24
2,760
1.3%
27/05/24-02/06/24
3,043
1.7%
03/06/24-09/06/24
3,259
2.0%
17/06/24-23/06/24
3,246
3.1%
Inspection reports
Case Number: 2021-0476
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sea lice spreadsheet average adults female; 20/9; 0.32, 27/9; 0.34, 4/10; 0.4, 18/10; 1.21
Mort disposal; Not stored shipped out twice a week. - All SSF in Orkney use ensiling facility at TwaTt, ensiled material is then transported to Shetland Pelagia increased morts get a bulker (lorry) and are taken whole to Shetland Pelagia.
Fish input in November 2020 from Toyness (Barcaldine origin). - all fish on site moved on at about 1 kg
Site morts; wk 39; 3% (reported) wk 40 0.25%, wk 41 6.85% (19660 fish peroxide treatments, low oxygen and CGD, reported), wk 42 0.48% wk 43 0.37% Breakdown of Wk 41 morts; cage1, 6.2%, 1850, cage3 8.7%, 2330, cage4 6.8% 1832 fish, cage5 18.8% 5240 fish, cage6 7.%, 2310 fish, cage10, 6.3% 1920 fish. - CGD and peroxide treatment.
Harvesting on Monday, first harvest - Live well boat- Scalloway processing plant
Peroxide treatment week 41. hydrolicer treatment start sept 2021. Slice treatments; 14-22 June, 18-26 Aug, Paramove 8th -
12th October.
Seal pro nets, Top nets, Tensioned nets- Seal predation at times of large tides [Original PDF]
Case Number: 2023-0364
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Fish moved on from Toyness in march 2023 - toyness is a nursery site.
Stock origin: Knock and barcaldine (stofnfiskur and aquagen)
Treatments:
FW- 23/03 to 06/04, Wk 12, all pens: FW treatment at input - 0.85% 5400, mortality below threshold.
Slice Wk 19, all pens
Slice Wk 25, all pens
FW wk 27, all pens
All harvests are conducted via live haul. Optomease used instead of T.M.S before end of crop due to shorter withdrawal time.
Health surveillance: weekly gill swabs,but usually once a month health visits conducted.
08/08/2023 - gill swabs - no AGD detected. Site has also bee seeing mild bloody spotting initially thought to be due to caligus but determined that jellyfish are issue. non-synchronous fallow risk assessment available as sites in FMA do not fallow synchronously: inspected 17/08/2023
FMA- reviewed annually, but discussed every 6 months.
During site inspection, seagulls were observed landing on bird net and weighing it down. Site has highlighted that birds are an issue but all mitigation measures in place. In addition, an upside down fish was observed in pen 8, removed to inspect it and deemed that no clinical signs were observed and therefore no diagnostic sample taken.
1 fish was removed for VMD sampling and was observed to be in healthy condition. Fish on site were observed to be shoaling well and feeding well too.
In addition to the routine inspection, a statutory inspection was conducted due to confirmation of BKD at Chalmer's Hope
(FS0993) - within one tidal excursion of the inspected site. The inspection was conducted to rule out signs of clinical BKD. No fish were observed with signs of clinical BKD. [Original PDF]