Site Details: Bring Head

Orkney Regional Office
Scapa
Orkney
KW15 1SD
Operator: Scottish Sea Farms Ltd
Water type: Seawater

Average female lice per fish

Source

Salmon Scotland mortality

Source

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 %

Source

Fish Health Inspectorate mortality

Date:
21/03/22-27/03/22
Mortality:
957
Mortality Rate:
2.00%
Reason given: Predation, seals
Predation, seals
Low number of fish on site as final harvesting
Site Fallowing - No further action
Date:
11/04/22-17/04/22
Mortality:
1,125
Mortality Rate:
3.60%
Reason given: Predation by seals
Predation by seals
Site now fallow
Site fallow. No further action.
Date:
11/09/23-17/09/23
Mortality:
9,598
Mortality Rate:
1.6%
Reason given: Environmental; Gill Health
Environmental; Gill Health
Increased mortality in all pens following environmental insult to gills
First report of the cycle. Routine site inspection was carried out 22/08/2023, no issues at this time. FHI to monitor.
Date:
18/09/23-24/09/23
Mortality:
6,423
Mortality Rate:
1.10%
Reason given: Environmental; Gill Health
Environmental; Gill Health
Increased mortality in all pens following environmental insult to gills
Second notification of the cycle. Slight decrease in mortality rate since the notifcation the previous week. Routine inspection carried out on 22/08/2023, no issues at this time. FHI to monitor
Date:
25/09/23-01/10/23
Mortality:
6,703
Mortality Rate:
1.1%
Reason given: Environmental; Gill Health
Environmental; Gill Health
CGD following environmental insult to gills
Mortality rate remaining steady, FHI to continue to monitor.
Date:
01/01/24-07/01/24
Mortality:
12,503
Mortality Rate:
2.20%
Reason given: Environmental
Environmental
Post storm/ weather in previous week
First report since September 2023, FHI to monitor
Date:
08/01/24-14/01/24
Mortality:
7,646
Mortality Rate:
1.4%
Reason given: Environmental
Environmental
Post storm/ weather
FHI to monitor.
Date:
15/01/24-21/01/24
Mortality:
8,700
Mortality Rate:
1.60%
Reason given: Environmental
Environmental
Post storm/weather
FHI to monitor.
Date:
22/01/24-28/01/24
Mortality:
15,189
Mortality Rate:
2.9%
Reason given: Environmental
Environmental
Post storm/ weather; on harvest plan
FHI to monitor.
Date:
08/04/24-14/04/24
Mortality:
4,727
Mortality Rate:
1.8%
Reason given: Virus disease
Virus disease
CMS; Destocking through harvest
FHI to monitor.
Date:
22/04/24-28/04/24
Mortality:
2,760
Mortality Rate:
1.3%
Reason given: Virus disease
Virus disease
CMS; Harvesting to fallow. Business contacted: Weather permitting site to fallow by the end of June 2024.
FHI to monitor.

Source

Inspection reports

Case Number: 2021-0476


Download 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


Download 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]

Source