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The Salmon Ledger
NOEN

Larstangen

Site 37297 · Karlsøy municipality · Production area 11, Kvaløya til Loppa

Below the lice limit, week 39Operated by Salmar Oppdrett AS · group SalMar
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0.10Adult 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 39 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026
7Lice treatments in 2026Latest: Mechanical delousing, week 35, 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
32Wellboat visits in 2026by 6 different vessels · latest 26 Aug 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
10.380.5Below the limit
20.270.5Below the limit
30.480.5Near the limit
40.300.5Below the limit
50.200.5Below the limit
60.300.5Below the limit
70.160.5Below the limit
80.230.5Below the limit
90.180.5Below the limit
100.340.5Below the limit
110.180.5Below the limit
120.220.5Below the limit
130.240.5Below the limit
140.190.5Below the limit
150.180.5Below the limit
160.260.5Below the limit
170.200.5Below the limit
180.230.5Below the limit
190.120.5Below the limit
200.260.5Below the limit
210.040.2Below the limit
220.010.2Below the limit
230.000.2Below the limit
240.050.2Below the limit
250.030.2Below the limit
260.090.2Below the limit
270.030.5Below the limit
280.200.5Below the limit
290.240.5Below the limit
300.230.5Below the limit
310.390.5Below the limit
320.330.5Below the limit
330.210.5Below the limit
340.210.5Below the limit
350.090.5Below the limit
360.100.5Below the limit
370.130.5Below the limit
380.150.5Below the limit
390.100.5Below the limit

Earlier years

20250 of 34 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
190.000.5Below the limit
200.000.5Below the limit
210.000.2Below the limit
220.010.2Below the limit
230.000.2Below the limit
240.000.2Below the limit
250.000.2Below the limit
260.000.2Below the limit
270.010.5Below the limit
280.000.5Below the limit
290.010.5Below the limit
300.040.5Below the limit
310.000.5Below the limit
320.060.5Below the limit
330.060.5Below the limit
340.090.5Below the limit
350.050.5Below the limit
360.250.5Below the limit
370.130.5Below the limit
380.450.5Near the limit
390.290.5Below the limit
400.400.5Near the limit
410.470.5Near the limit
420.130.5Below the limit
430.370.5Below the limit
440.160.5Below the limit
450.370.5Below the limit
460.210.5Below the limit
470.140.5Below the limit
480.320.5Below the limit
490.250.5Below the limit
500.420.5Near the limit
510.360.5Below the limit
520.220.5Below the limit
20244 of 51 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
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Adult female lice per fish per week, 2024
WeekAdult female lice per fishLice limitStatus
10.340.5Below the limit
20.130.5Below the limit
30.200.5Below the limit
40.190.5Below the limit
50.220.5Below the limit
60.190.5Below the limit
70.160.5Below the limit
80.210.5Below the limit
90.370.5Below the limit
100.200.5Below the limit
110.180.5Below the limit
120.310.5Below the limit
130.260.5Below the limit
140.280.5Below the limit
150.220.5Below the limit
160.240.5Below the limit
170.230.5Below the limit
180.240.5Below the limit
190.190.5Below the limit
200.260.5Below the limit
210.250.2Above the limit
220.010.2Below the limit
230.020.2Below the limit
240.020.2Below the limit
250.000.2Below the limit
260.030.2Below the limit
270.010.5Below the limit
280.020.5Below the limit
290.030.5Below the limit
300.020.5Below the limit
310.100.5Below the limit
320.130.5Below the limit
330.130.5Below the limit
340.290.5Below the limit
350.760.5Above the limit
360.490.5Near the limit
370.690.5Above the limit
380.360.5Below the limit
390.430.5Near the limit
400.250.5Below the limit
410.430.5Near the limit
420.480.5Near the limit
430.570.5Above the limit
440.410.5Near the limit
450.480.5Near the limit
460.230.5Below the limit
470.300.5Below the limit
480.320.5Below the limit
490.180.5Below the limit
500.170.5Below the limit
510.200.5Below the limit
52unknown0.5Reported without a count
20230 of 13 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
400.040.5Below the limit
410.020.5Below the limit
420.030.5Below the limit
430.080.5Below the limit
440.030.5Below the limit
450.080.5Below the limit
460.140.5Below the limit
470.120.5Below the limit
480.300.5Below the limit
490.230.5Below the limit
500.360.5Below the limit
510.300.5Below the limit
520.280.5Below the limit

Treatments

Norwegian Food Safety Authority
  • Week 35, 2026
    Mechanical delousing3 pens
  • Week 31, 2026
    Mechanical delousing3 pens
  • Week 30, 2026
    Mechanical delousing1 pen
  • Week 22, 2026
    Mechanical delousing4 pens
Show all 26
  • Week 21, 2026
    Mechanical delousing7 pens
  • Week 4, 2026
    Mechanical delousing3 pens
  • Week 2, 2026
    Mechanical delousing3 pens
  • Week 51, 2025
    Mechanical delousing3 pens
  • Week 47, 2025
    Mechanical delousing2 pens
  • Week 46, 2025
    Mechanical delousing2 pens
  • Week 45, 2025
    Mechanical delousing4 pens
  • Week 42, 2025
    Mechanical delousing5 pens
  • Week 39, 2025
    Mechanical delousing3 pens
  • Week 28, 2025
    Medicinal feed18 pens · Emamectin benzoat
  • Week 46, 2024
    Mechanical delousing2 pens
  • Week 45, 2024
    Mechanical delousing1 pen
  • Week 44, 2024
    Mechanical delousing3 pens
  • Week 43, 2024
    Mechanical delousing1 pen
  • Week 40, 2024
    Mechanical delousing3 pens
  • Week 38, 2024
    Other treatment2 pens · Hydrolicer
  • Week 37, 2024
    Other treatment1 pen · Hydrolicer
  • Week 36, 2024
    Other treatment3 pens · Hydrolicer
  • Week 22, 2024
    Other treatment10 pens · Optiflush
  • Week 2, 2024
    Other treatment3 pens · Thermolicer
  • Week 51, 2023
    Other treatment3 pens · Thermolicer
  • Week 40, 2023
    Other treatment5 pens · Optiflush

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

32 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
26 Aug 2026Ro SenjaKlokkstein14 h 14 min
25 Aug 2026Ro SenjaKlokkstein31 h 42 min
25 Aug 2026AasvaerfjordKlubben3 h 34 min
24 Aug 2026AasvaerfjordKlubben2 h 44 min
23 Aug 2026AasvaerfjordKlubben5 h 24 min
22 Aug 2026AasvaerfjordKlubben4 h 13 min
21 Aug 2026AasvaerfjordIndre Bringenes2 h 59 min
14 Aug 2026Ronja SpiritKlubben4 h 34 min
10 Aug 2026Ro ArcticAlsvåg2 h 48 min
03 Aug 2026Ronja SpiritKlubben4 h 38 min
02 Aug 2026Ronja SpiritKlubben3 h 2 min
28 Jul 2026Ro SenjaBjørga9 h 58 min
Show 76 older visits
ArrivalVesselPrevious farm (14 days)Duration
27 Jul 2026Ro SenjaBjørga1 h 42 min
27 Jul 2026Ro SenjaBjørga10 h 1 min
26 Jul 2026Ro SenjaBjørga10 h 23 min
26 Jul 2026Ro SenjaBjørga19 h 34 min
25 Jul 2026Ro FortuneMarøya3 h 28 min
19 Jul 2026Ro SailorAlsvåg4 h 8 min
15 Jul 2026AasvaerfjordKlubben8 h 38 min
30 May 2026Ro SenjaMjøsund Vest44 min
30 May 2026Ro SenjaMjøsund Vest4 h 14 min
29 May 2026Ro SenjaMjøsund Vest9 h 30 min
28 May 2026Ro SenjaMjøsund Vest23 h 16 min
24 May 2026Ro SenjaBrensholmen42 min
24 May 2026Ro SenjaBrensholmen7 h 20 min
23 May 2026Ro SenjaBrensholmen3 h 10 min
22 May 2026Ro SenjaBrensholmen37 h 19 min
21 May 2026Ro SenjaBrensholmen11 h 46 min
20 Jan 2026Ro SenjaKlubben9 h 20 min
20 Jan 2026Ro SenjaKlubben6 h 38 min
19 Jan 2026Ro SenjaKlubben1 h 28 min
10 Jan 2026Ro SenjaKlubben34 h 37 min
21 Dec 2025Ro SenjaKlubben16 h 59 min
20 Nov 2025Ro SenjaLekangsund II15 h 8 min
19 Nov 2025Ro SenjaLekangsund II1 h 52 min
16 Nov 2025Ro SenjaKlubben12 h 31 min
12 Oct 2025Ro FortuneVorterøyskagen23 h 41 min
23 Sep 2025Ro SenjaVindhammarneset24 h 17 min
29 May 2025Ro SpiritKokelv6 h 39 min
03 May 2025AasvaerfjordNordskag3 h 30 min
03 May 2025Ronja AuroraSalatskjæra1 h 46 min
27 Apr 2025Ronja VitaDjuptaren3 h 38 min
06 Jan 2025AasvaerfjordKlubben1 h 59 min
05 Jan 2025AasvaerfjordKlubben2 h 3 min
04 Jan 2025AasvaerfjordKlubben8 h 32 min
31 Dec 2024Ro SenjaKorsnes3 h 15 min
28 Dec 2024Ro SenjaKorsnes5 h 34 min
20 Dec 2024AasvaerfjordKlubben4 h 2 min
20 Dec 2024Ro FortuneSkognes8 h 10 min
18 Dec 2024Ro SpiritKlubben4 h 59 min
17 Dec 2024Ro SpiritKokelv3 h 49 min
17 Dec 2024Ro SenjaFartøyvika4 h 14 min
17 Dec 2024AasvaerfjordKlubben5 h 43 min
16 Dec 2024Ro SenjaFartøyvika2 h 34 min
11 Dec 2024Ro SenjaKlubben4 h 17 min
11 Dec 2024Ro SpiritKlubben5 h 17 min
10 Dec 2024AasvaerfjordKlubben4 h 30 min
08 Dec 2024Ro SpiritSkaret4 h 6 min
07 Dec 2024Ro SpiritKlubben2 h 17 min
06 Dec 2024Ro SpiritKlubben2 h 16 min
06 Dec 2024AasvaerfjordKlubben7 h 41 min
04 Dec 2024AasvaerfjordKlubben8 h 33 min
15 Nov 2024Ro ArcticFinnvik4 h 33 min
10 Nov 2024AasvaerfjordKlubben38 h 13 min
09 Nov 2024AasvaerfjordKlubben9 h 47 min
02 Nov 2024AasvaerfjordIndre Bringenes28 h 29 min
01 Nov 2024AasvaerfjordIndre Bringenes22 h 37 min
24 Oct 2024AasvaerfjordDanielsvika12 h 1 min
22 Oct 2024Ro SailorSkjervøy6 h 50 min
07 Oct 2024AasvaerfjordFinnvik7 h 17 min
04 Oct 2024AasvaerfjordFinnvik38 h 57 min
21 Sep 2024Froy OdinSkogshamn11 h 5 min
20 Sep 2024Froy OdinSkogshamn1 h 39 min
16 Sep 2024AasvaerfjordFinnvik11 h 56 min
15 Sep 2024AasvaerfjordFinnvik8 h 32 min
09 Sep 2024RobasHolmen50 min
08 Sep 2024Ro SailorSkaret7 h 16 min
08 Sep 2024RobasHolmen2 h 54 min
07 Sep 2024AasvaerfjordNæringsbukta53 h 0 min
07 Sep 2024Ro SailorSkjervøy5 h 36 min
07 Sep 2024RobasHolmen5 h 33 min
06 Sep 2024RobasHolmen55 min
02 Jun 2024Ro SenjaNæringsbukta14 h 49 min
01 Jun 2024Ro SenjaNæringsbukta21 h 53 min
30 May 2024Ro SenjaNæringsbukta39 h 38 min
11 Jan 2024Ro ArcticVindhammarneset18 h 0 min
10 Jan 2024Ro ArcticVindhammarneset8 h 19 min
09 Jan 2024Ro ArcticVindhammarneset5 h 31 min

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

Licences

Site MAB: 10,000 tonnes
LicenceTypeCapacityHolder
T N 0003Kommersiell / matfiskSalmon, Rainbow trout, Trout2,187 tSalmar Oppdrett AS
T N 0005Kommersiell / matfiskSalmon, Rainbow trout, Trout1,041 tSalmar Oppdrett AS
T N 0010Kommersiell / matfiskSalmon, Rainbow trout, Trout1,041 tSalmar Oppdrett AS
T N 0014Kommersiell / matfiskSalmon, Rainbow trout, Trout1,041 tSalmar Oppdrett AS
T T 0078Kommersiell / matfiskSalmon, Rainbow trout, Trout796 tArctic Offshore Farming AS
T T 0079Kommersiell / matfiskSalmon, Rainbow trout, Trout796 tArctic Offshore Farming AS
T T 0080Kommersiell / matfiskSalmon, Rainbow trout, Trout796 tArctic Offshore Farming AS
T T 0081Kommersiell / matfiskSalmon, Rainbow trout, Trout796 tArctic Offshore Farming AS
T T 0082Kommersiell / matfiskSalmon, Rainbow trout, Trout796 tArctic Offshore Farming AS
T T 0083Kommersiell / matfiskSalmon, Rainbow trout, Trout796 tArctic Offshore Farming AS
T T 0084Kommersiell / matfiskSalmon, Rainbow trout, Trout796 tArctic Offshore Farming AS
T T 0085Kommersiell / matfiskSalmon, Rainbow trout, Trout540 tArctic Offshore Farming AS
T TN 0008Kommersiell / matfiskSalmon, Rainbow trout, Trout1,041 tSalmar Oppdrett AS
T TN 0015Kommersiell / matfiskSalmon, Rainbow trout, Trout1,041 tSalmar Oppdrett AS

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