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The Salmon Ledger
NOEN

Høgholmen

Site 10536 · Harstad municipality · Production area 10, Andøya til Senja

Below the lice limit, week 39Operated by Nordlaks Havbruk AS
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0.32Adult female lice per fishLimit 0.50 · below the limitWeek 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026
0Weeks above the limit in 2026of 28 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026
1Lice treatments in 2026Latest: Mechanical delousing, week 34, 20262026 · Norwegian Food Safety Authority · updated 01 Oct 2026
0Active disease casesNone recordedRegister since 26 Nov 2024 · Norwegian Food Safety Authority · updated 01 Oct 2026
33Wellboat visits in 2026by 4 different vessels · latest 11 Sep 2026Derived from AIS · Norwegian Coastal Administration (AIS) · updated 01 Oct 2026
0Escapes reportedNone reportedSince 2006 · Directorate of Fisheries · updated 01 Oct 2026

Sea lice against the limit

Weekly average of adult female lice per fish, as reported by the company. For this site the limit is 0.2 in weeks 21–26 and 0.5 for the rest of the year. Hatched weeks have no count and count neither as above nor below.

2026

Source: Norwegian Food Safety Authority, weekly lice counts reported by the companies · Limit: Regulation on sea lice control § 8 · Updated 01 Oct 2026
Show as table
Adult female lice per fish per week, 2026
WeekAdult female lice per fishLice limitStatus
10.160.5Below the limit
20.170.5Below the limit
30.140.5Below the limit
40.150.5Below the limit
50.110.5Below the limit
60.130.5Below the limit
70.140.5Below the limit
80.150.5Below the limit
90.140.5Below the limit
10unknown0.5Reported without a count
11unknown0.5Not reported
12unknown0.5Not reported
13unknown0.5Not reported
14unknown0.5Not reported
15unknown0.5Not reported
16unknown0.5Not reported
17unknown0.5Not reported
18unknown0.5Not reported
19unknown0.5Not reported
20unknown0.5Not reported
210.040.2Below the limit
220.040.2Below the limit
230.050.2Below the limit
240.080.2Below the limit
250.120.2Below the limit
260.160.2Near the limit
270.190.5Below the limit
280.160.5Below the limit
290.180.5Below the limit
300.200.5Below the limit
310.200.5Below the limit
320.330.5Below the limit
330.470.5Near the limit
340.220.5Below the limit
350.080.5Below the limit
360.110.5Below the limit
370.150.5Below the limit
380.280.5Below the limit
390.320.5Below the limit

Earlier years

20250 of 32 weeks with a count above the limit
Source: Norwegian Food Safety Authority, weekly lice counts reported by the companies · Limit: Regulation on sea lice control § 8 · Updated 01 Oct 2026
Show as table
Adult female lice per fish per week, 2025
WeekAdult female lice per fishLice limitStatus
1unknown0.5Not reported
2unknown0.5Not reported
3unknown0.5Not reported
4unknown0.5Not reported
5unknown0.5Not reported
6unknown0.5Not reported
7unknown0.5Not reported
8unknown0.5Not reported
9unknown0.5Not reported
10unknown0.5Not reported
11unknown0.5Not reported
12unknown0.5Not reported
13unknown0.5Not reported
14unknown0.5Not reported
15unknown0.5Not reported
16unknown0.5Not reported
17unknown0.5Not reported
18unknown0.5Not reported
19unknown0.5Not reported
200.040.5Below the limit
210.030.2Below the limit
220.020.2Below the limit
230.040.2Below the limit
240.030.2Below the limit
250.050.2Below the limit
260.020.2Below the limit
270.100.5Below the limit
280.030.5Below the limit
290.140.5Below the limit
300.130.5Below the limit
310.480.5Near the limit
32unknown0.5Reported without a count
330.110.5Below the limit
340.390.5Below the limit
350.480.5Near the limit
360.190.5Below the limit
370.110.5Below the limit
380.130.5Below the limit
390.330.5Below the limit
400.450.5Near the limit
410.180.5Below the limit
420.290.5Below the limit
430.290.5Below the limit
440.490.5Near the limit
450.410.5Near the limit
460.330.5Below the limit
470.220.5Below the limit
480.180.5Below the limit
490.190.5Below the limit
500.180.5Below the limit
510.160.5Below the limit
520.130.5Below the limit
20243 of 41 weeks with a count above the limit
Source: Norwegian Food Safety Authority, weekly lice counts reported by the companies · Limit: Regulation on sea lice control § 8 · Updated 01 Oct 2026
Show as table
Adult female lice per fish per week, 2024
WeekAdult female lice per fishLice limitStatus
10.240.5Below the limit
20.160.5Below the limit
30.220.5Below the limit
40.220.5Below the limit
50.160.5Below the limit
60.170.5Below the limit
7unknown0.5Reported without a count
80.240.5Below the limit
90.260.5Below the limit
100.090.5Below the limit
110.070.5Below the limit
120.030.5Below the limit
130.020.5Below the limit
140.010.5Below the limit
150.030.5Below the limit
160.050.5Below the limit
170.060.5Below the limit
18unknown0.5Reported without a count
190.070.5Below the limit
200.070.5Below the limit
210.030.2Below the limit
220.030.2Below the limit
230.050.2Below the limit
240.020.2Below the limit
250.070.2Below the limit
260.080.2Below the limit
270.070.5Below the limit
280.060.5Below the limit
290.030.5Below the limit
300.070.5Below the limit
310.230.5Below the limit
320.450.5Near the limit
330.440.5Near the limit
340.080.5Below the limit
350.120.5Below the limit
360.260.5Below the limit
370.470.5Near the limit
380.360.5Below the limit
390.370.5Below the limit
400.430.5Near the limit
411.290.5Above the limit
422.870.5Above the limit
431.730.5Above the limit
44unknown0.5Not reported
45unknown0.5Not reported
46unknown0.5Not reported
47unknown0.5Not reported
48unknown0.5Not reported
49unknown0.5Not reported
50unknown0.5Not reported
51unknown0.5Not reported
52unknown0.5Not reported
20230 of 12 weeks with a count above the limit (data from week 40)
Source: Norwegian Food Safety Authority, weekly lice counts reported by the companies · Limit: Regulation on sea lice control § 8 · Updated 01 Oct 2026
Show as table
Adult female lice per fish per week, 2023
WeekAdult female lice per fishLice limitStatus
40unknown0.5Not reported
410.310.5Below the limit
420.000.5Below the limit
430.000.5Below the limit
440.010.5Below the limit
450.030.5Below the limit
460.090.5Below the limit
470.290.5Below the limit
480.240.5Below the limit
490.230.5Below the limit
500.020.5Below the limit
510.360.5Below the limit
520.210.5Below the limit

Treatments

Norwegian Food Safety Authority
  • Week 34, 2026
    Mechanical delousing5 pens
  • Week 41, 2025
    Other treatment3 pens · FLS
  • Week 40, 2025
    Other treatment4 pens · FLS
  • Week 36, 2025
    Medicinal bath5 pens · Azamethiphos
Show all 15
  • Week 35, 2025
    Medicinal bath3 pens · Azamethiphos
  • Week 32, 2025
    Other treatment9 pens · FLS
  • Week 43, 2024
    Medicinal bath4 pens · Hydrogen peroxide
  • Week 38, 2024
    Other treatment1 pen · Skamik
  • Week 37, 2024
    Other treatment4 pens · Skamik
  • Week 34, 2024
    Medicinal bath2 pens · Azamethiphos
  • Week 33, 2024
    Medicinal bath7 pens · Azamethiphos
  • Week 50, 2023
    Medicinal bath3 pens · Deltamethrin
  • Week 49, 2023
    Medicinal bath6 pens · Deltamethrin
  • Week 42, 2023
    Other treatment1 pen · Ferskvann og thermolicer
  • Week 41, 2023
    Other treatment2 pens · Ferskvann og thermolicer

Disease

Norwegian Food Safety Authority

No cases in the Food Safety Authority's register of notifiable diseases (since 26 Nov 2024).

Escapes

Directorate of Fisheries

No escapes reported from this site since 2006.

Wellboat visits

33 visits in 2026

Visits are derived by us from the Coastal Administration's AIS positions: a fish carrier stationary within 500 metres of the farm for at least 30 minutes. The AIS archive lags about 17 days. A visit is not proof of infection.

ArrivalVesselPrevious farm (14 days)Duration
11 Sep 2026Ronja VitaBørøya Slaktemerd5 h 22 min
22 Aug 2026Bjorg PaulineDypingen20 h 21 min
21 Aug 2026Bjorg PaulineDypingen20 h 41 min
20 Aug 2026Bjorg PaulineDypingen17 h 1 min
19 Aug 2026Bjorg PaulineDypingen16 h 20 min
18 Aug 2026Bjorg PaulineDypingen10 h 11 min
28 May 2026Bjorg PaulineDypingen1 h 29 min
28 May 2026Bjorg PaulineDypingen1 h 37 min
28 May 2026Bjorg PaulineDypingen1 h 28 min
27 May 2026Bjorg PaulineDypingen1 h 22 min
24 May 2026Bjorg PaulineDypingen3 h 40 min
24 May 2026Bjorg PaulineDypingen49 min
Show 63 older visits
ArrivalVesselPrevious farm (14 days)Duration
23 May 2026Bjorg PaulineDypingen1 h 9 min
23 May 2026Bjorg PaulineDypingen54 min
23 May 2026Bjorg PaulineDypingen58 min
22 May 2026Bjorg PaulineDypingen58 min
22 May 2026Bjorg PaulineDypingen50 min
21 Mar 2026Bjorg PaulineSørvika2 h 11 min
18 Mar 2026Bjorg PaulineBørøya Slaktemerd5 h 10 min
08 Mar 2026CaspianRotvika3 h 10 min
02 Mar 2026CaspianRotvika2 h 36 min
23 Feb 2026Bjorg PaulineBørøya Slaktemerd2 h 35 min
07 Feb 2026Bjorg PaulineBørøya Slaktemerd4 h 8 min
31 Jan 2026Harald MartinBørøya Slaktemerd4 h 13 min
28 Jan 2026Bjorg PaulineBørøya Slaktemerd1 h 27 min
25 Jan 2026Harald MartinBørøya Slaktemerd1 h 30 min
21 Jan 2026Bjorg PaulineBørøya Slaktemerd2 h 9 min
18 Jan 2026Harald MartinBørøya Slaktemerd3 h 15 min
14 Jan 2026Harald MartinBørøya Slaktemerd1 h 56 min
11 Jan 2026Harald MartinBergkråa2 h 29 min
07 Jan 2026Bjorg PaulineBørøya Slaktemerd3 h 10 min
04 Jan 2026Bjorg PaulineBørøya Slaktemerd3 h 19 min
01 Jan 2026Bjorg PaulineMolgavlen3 h 50 min
20 Dec 2025Bjorg PaulineToppsund V3 h 14 min
15 Dec 2025Harald MartinMolgavlen2 h 40 min
14 Dec 2025Bjorg PaulineToppsund V2 h 54 min
24 Nov 2025Bjorg PaulineSkøyen4 h 24 min
21 Nov 2025Harald MartinElgen3 h 39 min
20 Nov 2025Bjorg PaulineBørøya Slaktemerd8 h 28 min
10 Nov 2025Harald MartinDypingen5 h 44 min
26 Oct 2025Harald MartinBørøya Slaktemerd3 h 30 min
25 Oct 2025Harald MartinVestnes4 h 24 min
05 Oct 2025Bjorg PaulineBørøya Slaktemerd61 h 42 min
03 Oct 2025Bjorg PaulineBørøya Slaktemerd43 h 27 min
02 Oct 2025Harald MartinBørøya Slaktemerd5 h 57 min
24 Sep 2025Harald MartinToppsund V9 h 14 min
29 Aug 2025Bjorg PaulineSkjellesvika5 h 33 min
10 Aug 2025Ronja SilverYtre Simanes11 h 14 min
09 Aug 2025Ronja SilverYtre Simanes16 h 28 min
08 Aug 2025Ronja SilverYtre Simanes19 h 15 min
08 Aug 2025TonnyNaustholmen3 h 56 min
07 Aug 2025Bjorg PaulineToppsund V6 h 7 min
07 Aug 2025Bjorg PaulineToppsund V6 h 11 min
05 Aug 2025Bjorg PaulineToppsund V45 h 20 min
12 May 2025Harald MartinYtre Stræte35 min
11 May 2025Bjorg PaulineYtre Stræte1 h 15 min
17 Nov 2024Bjorg PaulineBørøya Slaktemerd3 h 56 min
16 Nov 2024Bjorg PaulineBørøya Slaktemerd4 h 14 min
15 Nov 2024Bjorg PaulineBørøya Slaktemerd4 h 53 min
12 Nov 2024Harald MartinSkommesvik4 h 56 min
12 Nov 2024Bjorg PaulineBørøya Slaktemerd3 h 55 min
11 Nov 2024Bjorg PaulineBørøya Slaktemerd4 h 53 min
10 Nov 2024Bjorg PaulineBørøya Slaktemerd7 h 59 min
09 Nov 2024Bjorg PaulineHolandselv3 h 12 min
01 Nov 2024Bjorg PaulineBørøya Slaktemerd7 h 32 min
14 Oct 2024Bjorg PaulineGisløy Nø3 h 54 min
11 Oct 2024Bjorg PaulineBørøya Slaktemerd10 h 33 min
10 Oct 2024Bjorg PaulineBørøya Slaktemerd3 h 41 min
08 Oct 2024Bjorg PaulineBørøya Slaktemerd3 h 20 min
05 Oct 2024Bjorg PaulineBørøya Slaktemerd5 h 6 min
28 Sep 2024Bjorg PaulineBørøya Slaktemerd protection zone (ISA/PD), no outbreak there5 h 18 min
25 Sep 2024Bjorg PaulineBørøya Slaktemerd protection zone (ISA/PD), no outbreak there4 h 55 min
22 Sep 2024Bjorg PaulineLitjevika5 h 47 min
11 Aug 2024Bjorg PaulineStorskjæret4 h 58 min
05 Aug 2024Harald MartinBørøya Slaktemerd protection zone (ISA/PD), no outbreak there4 h 8 min

Source: Norwegian Coastal Administration (AIS) · calculated by the Salmon Ledger · updated 01 Oct 2026

Licences

Site MAB: 6,615 tonnes
LicenceTypeCapacityHolder
T BK 0001Kommersiell / matfiskSalmon, Rainbow trout, Trout974 tNordlaks Havbruk AS
T D 0002Kommersiell / matfiskSalmon, Rainbow trout, Trout974 tNordlaks Havbruk AS
T K 0029Kommersiell / matfiskSalmon, Rainbow trout, Trout974 tNordlaks Havbruk AS
T KF 0007Kommersiell / matfiskSalmon, Rainbow trout, Trout974 tNordlaks Havbruk AS
T KN 0007Kommersiell / matfiskSalmon, Rainbow trout, Trout974 tNordlaks Havbruk AS
T S 0001Kommersiell / matfiskSalmon, Rainbow trout, Trout974 tNordlaks Havbruk AS
T SK 0002Kommersiell / matfiskSalmon, Rainbow trout, Trout974 tNordlaks Havbruk AS

Source: Directorate of Fisheries, aquaculture register · updated 01 Oct 2026