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The Salmon Ledger
NOEN

Sandholmane

Site 31677 · Aukra municipality · Production area 5, Stadt til Hustadvika

Near the lice limit, week 39Operated by Lerøy Midt Sjø AS · group Lerøy Seafood Group
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0.41Adult female lice per fishLimit 0.50 · near the limitWeek 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026
0Weeks above the limit in 2026of 11 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026
0Lice treatments in 2026None recorded2026 · Norwegian Food Safety Authority · updated 01 Oct 2026
0Active disease casesNone active · 1 earlierRegister since 26 Nov 2024 · Norwegian Food Safety Authority · updated 01 Oct 2026
2Wellboat visits in 2026by 1 vessel · latest 03 Aug 2026Derived from AIS · Norwegian Coastal Administration (AIS) · updated 01 Oct 2026
1Escapes reported14,980 salmon, January 2025Since 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 16–21 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
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
16unknown0.2Not reported
17unknown0.2Not reported
18unknown0.2Not reported
19unknown0.2Not reported
20unknown0.2Not reported
21unknown0.2Not reported
22unknown0.5Not reported
23unknown0.5Not reported
24unknown0.5Not reported
25unknown0.5Not reported
26unknown0.5Not reported
27unknown0.5Not reported
28unknown0.5Not reported
290.000.5Below the limit
300.000.5Below the limit
310.000.5Below the limit
320.000.5Below the limit
330.000.5Below the limit
340.000.5Below the limit
350.010.5Below the limit
360.000.5Below the limit
370.020.5Below the limit
380.030.5Below the limit
390.410.5Near the limit

Earlier years

20251 of 50 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
10.220.5Below the limit
20.210.5Below the limit
30.230.5Below the limit
40.140.5Below the limit
50.020.5Below the limit
60.130.5Below the limit
70.100.5Below the limit
80.100.5Below the limit
90.110.5Below the limit
100.150.5Below the limit
110.270.5Below the limit
120.310.5Below the limit
130.370.5Below the limit
140.270.5Below the limit
150.290.5Below the limit
160.080.2Below the limit
170.050.2Below the limit
180.060.2Below the limit
190.080.2Below the limit
200.110.2Below the limit
210.160.2Below the limit
220.280.5Below the limit
230.230.5Below the limit
240.270.5Below the limit
250.260.5Below the limit
260.400.5Near the limit
270.310.5Below the limit
280.470.5Near the limit
290.480.5Near the limit
300.340.5Below the limit
310.390.5Below the limit
320.440.5Near the limit
330.270.5Below the limit
340.090.5Below the limit
350.190.5Below the limit
360.500.5Above the limit
370.370.5Below the limit
380.380.5Below the limit
390.410.5Near the limit
400.330.5Below the limit
410.050.5Below the limit
420.090.5Below the limit
430.190.5Below the limit
440.280.5Below the limit
450.400.5Near the limit
460.300.5Below the limit
470.320.5Below the limit
480.310.5Below the limit
490.360.5Below the limit
500.290.5Below the limit
51unknown0.5Not reported
52unknown0.5Not reported
20240 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
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Adult female lice per fish per week, 2024
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
16unknown0.2Not reported
17unknown0.2Not reported
18unknown0.2Not reported
190.000.2Below the limit
200.000.2Below the limit
210.000.2Below the limit
220.000.5Below the limit
230.000.5Below the limit
240.000.5Below the limit
250.000.5Below the limit
260.000.5Below the limit
270.030.5Below the limit
280.110.5Below the limit
290.100.5Below the limit
300.080.5Below the limit
310.050.5Below the limit
320.030.5Below the limit
330.170.5Below the limit
340.120.5Below the limit
350.200.5Below the limit
360.190.5Below the limit
370.360.5Below the limit
380.200.5Below the limit
390.120.5Below the limit
400.240.5Below the limit
410.180.5Below the limit
420.440.5Near the limit
430.390.5Below the limit
440.410.5Near the limit
450.080.5Below the limit
460.040.5Below the limit
470.040.5Below the limit
480.060.5Below the limit
490.070.5Below the limit
500.110.5Below the limit
510.110.5Below the limit
520.130.5Below the limit
20230 of 10 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
400.090.5Below the limit
410.200.5Below the limit
420.460.5Near the limit
430.140.5Below the limit
440.200.5Below the limit
450.330.5Below the limit
460.280.5Below the limit
470.230.5Below the limit
480.280.5Below the limit
490.380.5Below the limit
50unknown0.5Not reported
51unknown0.5Not reported
52unknown0.5Not reported

Treatments

Norwegian Food Safety Authority
  • Week 41, 2025
    Mechanical delousing1 pen
  • Week 40, 2025
    Mechanical delousing2 pens
  • Week 37, 2025
    Mechanical delousing2 pens
  • Week 36, 2025
    Thermal delousing1 pen
Show all 21
  • Week 34, 2025
    Mechanical delousingWhole site
  • Week 32, 2025
    Mechanical delousing3 pens
  • Week 29, 2025
    Mechanical delousing3 pens
  • Week 28, 2025
    Mechanical delousing2 pens
  • Week 27, 2025
    Mechanical delousing1 pen
  • Week 23, 2025
    Mechanical delousing4 pens
  • Week 22, 2025
    Mechanical delousing1 pen
  • Week 16, 2025
    Thermal delousing5 pens
  • Week 14, 2025
    Thermal delousing2 pens
  • Week 4, 2025
    Thermal delousing6 pens
  • Week 46, 2024
    Freshwater treatment3 pens
  • Week 45, 2024
    Mechanical delousing, Freshwater treatment8 pens
  • Week 38, 2024
    Mechanical delousing, Freshwater treatment5 pens
  • Week 34, 2024
    Freshwater treatment4 pens
  • Week 33, 2024
    Freshwater treatment1 pen
  • Week 43, 2023
    Mechanical delousing1 pen
  • Week 42, 2023
    Mechanical delousing2 pens

Disease

Norwegian Food Safety Authority

Escapes

Directorate of Fisheries
  • 05 Jan 2025
    14,980 salmon escapedrecaptured 1 · Directorate of Fisheries

Wellboat visits

2 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
03 Aug 2026Froey VikingEndreset4 h 22 min
30 Jul 2026Froey VikingEndreset4 h 29 min
13 Jul 2025KristiansundHagahammaren21 h 46 min
30 May 2025Froy HovdingBogen11 h 15 min
15 Apr 2025Ro ArcticSegelråa40 h 54 min
02 Apr 2025Ro VentureGnarnesvika disease or zone there16 h 42 min
25 Jan 2025Ro FortuneHagahammaren3 h 32 min
24 Jan 2025Ro FortuneHagahammaren9 h 47 min
24 Jan 2025Ro FortuneHagahammaren8 h 48 min
24 Jan 2025Ro FortuneHagahammaren1 h 51 min
23 Jan 2025Ro FortuneHagahammaren3 h 40 min
23 Jan 2025Ro FortuneHagahammaren5 h 1 min
Show 22 older visits
ArrivalVesselPrevious farm (14 days)Duration
23 Jan 2025Ro FortuneHagahammaren4 h 8 min
22 Jan 2025Ro FortuneHagahammaren5 h 16 min
22 Jan 2025Ro FortuneHagahammaren2 h 1 min
22 Jan 2025Ro FortuneHagahammaren2 h 39 min
10 Nov 2024Froy HovdingSkåren40 h 28 min
08 Nov 2024Froy HovdingSkåren33 h 13 min
22 Sep 2024KristiansundNord Leksa32 h 21 min
21 Sep 2024KristiansundNord Leksa15 h 6 min
15 Sep 2024NeptunVullum1 h 22 min
22 Aug 2024KristiansundRenndalen12 h 20 min
21 Aug 2024KristiansundRenndalen11 h 0 min
20 Aug 2024KristiansundRenndalen8 h 21 min
19 Aug 2024KristiansundRenndalen1 h 20 min
18 Aug 2024KristiansundRenndalen2 h 8 min
18 Aug 2024KristiansundRenndalen4 h 55 min
31 Jul 2024Neptunno other farm4 h 13 min
31 May 2024NeptunFosså2 h 45 min
26 May 2024Namsosno other farm2 h 49 min
15 May 2024NamsosLangevågen11 h 13 min
12 May 2024NamsosLangevågen4 h 53 min
09 May 2024NeptunRaskjæret3 h 52 min
07 May 2024NeptunRaskjæret4 h 37 min

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

Licences

Site MAB: 4,680 tonnes
LicenceTypeCapacityHolder
M SR 0003Kommersiell / matfiskSalmon, Rainbow trout, Trout733 tLerøy Midt Sjø AS
M SU 0002Kommersiell / matfiskSalmon, Rainbow trout, Trout733 tLerøy Vest Sjø AS
M T 0001Kommersiell / matfiskSalmon, Rainbow trout, Trout733 tLerøy Midt Sjø AS
M T 0014Kommersiell / matfiskSalmon, Rainbow trout, Trout733 tLerøy Midt Sjø AS
M TV 0001Kommersiell / matfiskSalmon, Rainbow trout, Trout733 tLerøy Midt Sjø AS
M TV 0002Kommersiell / matfiskSalmon, Rainbow trout, Trout733 tLerøy Midt Sjø AS

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