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The Salmon Ledger
NOEN

Sandskjæret

Site 45013 · Sømna municipality · Production area 7, Nord-Trøndelag med Bindal

Below the lice limit, week 39Operated by Mowi Seawater Norway AS · group Mowi
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0.00Adult 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 32 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026
2Lice treatments in 2026Latest: Thermal 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
19Wellboat visits in 2026by 7 different vessels · latest 04 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
10.180.5Below the limit
20.190.5Below the limit
30.180.5Below the limit
40.250.5Below the limit
50.270.5Below the limit
60.100.5Below the limit
70.230.5Below the limit
80.200.5Below the limit
90.190.5Below the limit
100.190.5Below the limit
110.180.5Below the limit
120.130.5Below the limit
130.120.5Below the limit
140.080.5Below the limit
150.110.5Below the limit
160.180.5Below the limit
170.200.5Below the limit
180.220.5Below the limit
190.220.5Below the limit
200.000.5Below the limit
210.000.2Below the limit
22unknown0.2Not reported
23unknown0.2Not reported
24unknown0.2Not reported
25unknown0.2Not reported
26unknown0.2Not 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
340.030.5Below the limit
350.000.5Below the limit
360.000.5Below the limit
370.000.5Below the limit
380.010.5Below the limit
390.000.5Below the limit

Earlier years

20252 of 52 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
10.030.5Below the limit
20.080.5Below the limit
30.030.5Below the limit
40.060.5Below the limit
50.040.5Below the limit
60.090.5Below the limit
70.080.5Below the limit
80.190.5Below the limit
90.180.5Below the limit
100.210.5Below the limit
110.290.5Below the limit
120.340.5Below the limit
130.290.5Below the limit
140.300.5Below the limit
150.080.5Below the limit
160.070.5Below the limit
170.100.5Below the limit
180.080.5Below the limit
190.070.5Below the limit
200.080.5Below the limit
210.030.2Below the limit
220.080.2Below the limit
230.100.2Below the limit
240.200.2Above the limit
250.160.2Below the limit
260.090.2Below the limit
270.110.5Below the limit
280.330.5Below the limit
290.040.5Below the limit
300.270.5Below the limit
310.040.5Below the limit
320.060.5Below the limit
330.470.5Near the limit
340.080.5Below the limit
350.020.5Below the limit
360.050.5Below the limit
370.430.5Near the limit
380.920.5Above the limit
390.020.5Below the limit
400.390.5Below the limit
410.260.5Below the limit
420.320.5Below the limit
430.340.5Below the limit
440.370.5Below the limit
450.040.5Below the limit
460.120.5Below the limit
470.280.5Below the limit
480.230.5Below the limit
490.010.5Below the limit
500.030.5Below the limit
510.110.5Below the limit
520.100.5Below the limit
20240 of 36 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
10.100.5Below the limit
20.050.5Below the limit
3unknown0.5Reported without a count
40.100.5Below the limit
50.130.5Below the limit
60.150.5Below the limit
70.150.5Below the limit
80.130.5Below the limit
90.230.5Below the limit
100.250.5Below the limit
110.250.5Below the limit
120.250.5Below the limit
130.280.5Below the limit
140.350.5Below the limit
150.430.5Near the limit
16unknown0.5Reported without a count
17unknown0.5Not reported
18unknown0.5Not reported
19unknown0.5Not reported
20unknown0.5Not reported
21unknown0.2Not reported
22unknown0.2Not reported
23unknown0.2Not reported
24unknown0.2Not reported
25unknown0.2Not reported
26unknown0.2Not reported
27unknown0.5Not reported
28unknown0.5Not reported
29unknown0.5Not reported
30unknown0.5Not reported
310.000.5Below the limit
320.000.5Below the limit
330.000.5Below the limit
340.000.5Below the limit
350.000.5Below the limit
360.030.5Below the limit
370.160.5Below the limit
380.270.5Below the limit
390.160.5Below the limit
400.150.5Below the limit
410.110.5Below the limit
420.140.5Below the limit
430.090.5Below the limit
440.210.5Below the limit
450.110.5Below the limit
460.250.5Below the limit
470.170.5Below the limit
480.360.5Below the limit
490.040.5Below the limit
500.030.5Below the limit
510.060.5Below the limit
520.090.5Below the limit
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
400.380.5Below the limit
410.260.5Below the limit
420.100.5Below the limit
430.150.5Below the limit
440.260.5Below the limit
450.050.5Below the limit
460.050.5Below the limit
470.080.5Below the limit
480.150.5Below the limit
490.170.5Below the limit
500.350.5Below the limit
510.100.5Below the limit
520.090.5Below the limit

Treatments

Norwegian Food Safety Authority
  • Week 35, 2026
    Thermal delousingWhole site
  • Week 5, 2026
    Mechanical delousingWhole site
  • Week 49, 2025
    Mechanical delousing4 pens
  • Week 48, 2025
    Mechanical delousing3 pens
Show all 24
  • Week 45, 2025
    Mechanical delousingWhole site
  • Week 39, 2025
    Thermal delousing7 pens
  • Week 38, 2025
    Thermal delousing1 pen
  • Week 35, 2025
    Thermal delousing2 pens
  • Week 34, 2025
    Thermal delousing6 pens
  • Week 31, 2025
    Mechanical delousingWhole site
  • Week 28, 2025
    Mechanical delousingWhole site
  • Week 26, 2025
    Mechanical delousing9 pens
  • Week 15, 2025
    Mechanical delousing5 pens
  • Week 6, 2025
    Medicinal feed5 pens · Emamectin benzoat
  • Week 5, 2025
    Medicinal feed5 pens · Emamectin benzoat
  • Week 4, 2025
    Medicinal feed5 pens · Emamectin benzoat
  • Week 49, 2024
    Thermal delousing5 pens
  • Week 37, 2024
    Medicinal feedWhole site · Emamectin benzoat
  • Week 36, 2024
    Medicinal feedWhole site · Emamectin benzoat
  • Week 51, 2023
    Thermal delousingWhole site
  • Week 45, 2023
    Mechanical delousingWhole site
  • Week 42, 2023
    Mechanical delousing2 pens
  • Week 41, 2023
    Mechanical delousing1 pen
  • Week 40, 2023
    Mechanical delousing2 pens

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

19 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
04 Sep 2026FaeroeysundHestholmen N5 h 42 min
31 Aug 2026Ronja HavsoyAustvika5 h 14 min
29 Aug 2026Ronja HavsoyAustvika6 h 27 min
13 Jul 2026ViknatransStraumsjøen2 h 45 min
24 May 2026Ro NorthHestøy2 h 0 min
23 May 2026Ro NorthHestøy3 h 34 min
16 May 2026Ronja ExplorerMarøya2 h 28 min
07 May 2026Ronja OceanHelligholmen3 h 7 min
04 May 2026Ronja ExplorerMarøya2 h 2 min
03 May 2026Ronja ExplorerMarøya2 h 57 min
30 Apr 2026Ronja ExplorerMarøya4 h 15 min
29 Apr 2026Ronja HavsoyHestøy2 h 12 min
Show 53 older visits
ArrivalVesselPrevious farm (14 days)Duration
28 Apr 2026Ronja HavsoySlokkholmen Ø3 h 2 min
04 Apr 2026Ronja HavsoyHestøy6 h 3 min
25 Feb 2026Ro NorthHestøy1 h 26 min
25 Feb 2026Ronja HavsoyHestøy1 h 51 min
01 Feb 2026Ronja HeroyGeitryggen8 h 9 min
31 Jan 2026Ronja HeroyGeitryggen15 h 50 min
30 Jan 2026Ronja HeroyGeitryggen12 h 53 min
02 Dec 2025Ronja HeroyDigermulen1 h 22 min
01 Dec 2025Ronja HeroyDigermulen18 h 5 min
30 Nov 2025Ronja HeroyDigermulen12 h 48 min
28 Nov 2025Ronja HeroyDigermulen7 h 23 min
15 Nov 2025Ronja HavsoyJakobsteinsvika4 h 55 min
02 Oct 2025Ronja HavsoyHestøy2 h 24 min
21 Sep 2025Ro NorthMulnesodden78 h 47 min
26 Aug 2025Ro NorthSkarvhammaren5 h 17 min
24 Aug 2025Ro NorthSkarvhammaren43 h 49 min
23 Aug 2025Ro NorthSkarvhammaren13 h 48 min
30 Jul 2025Ronja HeroySteinflesa11 h 34 min
29 Jul 2025Ronja HeroySteinflesa14 h 3 min
28 Jul 2025Ronja HeroySteinflesa18 h 17 min
13 Jul 2025Ronja HeroyBreivika S2 h 41 min
12 Jul 2025Ronja HeroyBreivika S20 h 28 min
11 Jul 2025Ronja HeroyBreivika S18 h 20 min
10 Jul 2025Ronja HeroyBreivika S1 h 50 min
26 Jun 2025Ronja HeroyKlubben10 h 37 min
25 Jun 2025Ronja HeroyKlubben18 h 34 min
24 Jun 2025Ronja HeroyKlubben2 h 53 min
24 Jun 2025Ronja HeroyKlubben8 h 8 min
23 Jun 2025Ronja HeroyKlubben3 h 24 min
23 Jun 2025Ronja HeroyKlubben5 h 48 min
22 Jun 2025Ronja HeroyKlubben6 h 15 min
13 Apr 2025Ronja HeroyRamnøya N4 h 5 min
12 Apr 2025Ronja HeroyRamnøya N3 h 3 min
11 Apr 2025Ronja HeroyRamnøya N10 h 34 min
10 Apr 2025Ronja HeroyRamnøya N15 h 1 min
04 Dec 2024Ro NorthLille Åsvær15 h 54 min
03 Dec 2024Ro NorthLille Åsvær13 h 42 min
27 Nov 2024Ronja VitaAlmurden3 h 40 min
26 Nov 2024Ronja VitaAlmurden2 h 26 min
25 Nov 2024Ronja VitaAlmurden9 h 50 min
29 Jul 2024Ronja HavsoyHestøy6 h 20 min
27 Jul 2024Ronja HavsoyHestøy4 h 8 min
26 Jul 2024Ronja HavsoyHestøy6 h 29 min
23 Apr 2024Ro SpiritMåvær1 h 36 min
22 Apr 2024Ronja HeroySkarvhammaren disease or zone there2 h 5 min
21 Apr 2024Ro SpiritMovik3 h 24 min
16 Apr 2024Ro ArcticHestøy2 h 40 min
14 Apr 2024Ro NorthHestøy1 h 49 min
11 Apr 2024Ronja HavsoyHestøy3 h 10 min
14 Jan 2024Ronja HavsoyHestøy3 h 35 min
10 Jan 2024Ronja HavsoyHestøy2 h 30 min
09 Jan 2024Ro NorthMåvær2 h 38 min
08 Jan 2024Ronja HavsoyHestøy2 h 35 min

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

Licences

Site MAB: 3,600 tonnes
LicenceTypeCapacityHolder
NT LA 0002Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tMowi Seawater Norway AS
NT LA 0003Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tMowi Seawater Norway AS
NT LA 0005Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tMowi Seawater Norway AS
NT LA 0006Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tMowi Seawater Norway AS
NT LA 0007Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tMowi Seawater Norway AS

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