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The Salmon Ledger
NOEN

Slåttholmen

Site 26155 · Heim municipality · Production area 6, Nordmøre og Sør-Trøndelag

Status unknown: not reported in week 39Operated by Lerøy Midt Sjø AS

Broodstock site: the limit may differ from the general one.

Follow this farmDownload CSV
unknownAdult female lice per fishNo count in week 39. Latest: 0.50 in week 35, 2026Week 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026
2Weeks above the limit in 2026of 35 weeks with a count · broodstock: limit may differCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026
10Lice treatments in 2026Latest: Freshwater treatment, 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
39Wellboat visits in 2026by 5 different vessels · latest 03 Sep 2026Derived from AIS · Norwegian Coastal Administration (AIS) · updated 01 Oct 2026
2Escapes reported1-10 salmon, December 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. Broodstock site: the limit may differ from the general one.

2026

Source: Norwegian Food Safety Authority, weekly lice counts reported by the companies · Limit: Regulation on sea lice control § 8 · Updated 01 Oct 2026Broodstock site: the limit may differ from the general one.
Show as table
Adult female lice per fish per week, 2026
WeekAdult female lice per fishLice limitStatus
10.100.5Below the limit
20.080.5Below the limit
30.100.5Below the limit
40.180.5Below the limit
50.310.5Below the limit
60.400.5Near the limit
70.300.5Below the limit
80.400.5Near the limit
90.360.5Below the limit
100.040.5Below the limit
110.020.5Below the limit
120.030.5Below the limit
130.040.5Below the limit
140.040.5Below the limit
150.040.5Below the limit
160.030.2Below the limit
170.020.2Below the limit
180.040.2Below the limit
190.050.2Below the limit
200.060.2Below the limit
210.100.2Below the limit
220.180.5Below the limit
230.280.5Below the limit
240.190.5Below the limit
250.100.5Below the limit
260.110.5Below the limit
270.130.5Below the limit
280.170.5Below the limit
290.380.5Below the limit
300.120.5Below the limit
310.220.5Below the limit
320.410.5Near the limit
330.530.5Above the limit
340.300.5Below the limit
350.500.5Above the limit
36unknown0.5Not reported
37unknown0.5Not reported
38unknown0.5Not reported
39unknown0.5Not reported

Earlier years

20252 of 39 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 2026Broodstock site: the limit may differ from the general one.
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
140.000.5Below the limit
150.000.5Below the limit
160.000.2Below the limit
170.000.2Below the limit
180.000.2Below the limit
190.000.2Below the limit
200.010.2Below the limit
210.010.2Below the limit
220.030.5Below the limit
230.040.5Below the limit
240.030.5Below the limit
250.040.5Below the limit
260.030.5Below the limit
270.040.5Below the limit
280.060.5Below the limit
290.080.5Below the limit
300.130.5Below the limit
310.140.5Below the limit
320.170.5Below the limit
330.230.5Below the limit
340.450.5Near the limit
350.700.5Above the limit
360.250.5Below the limit
370.180.5Below the limit
380.270.5Below the limit
390.560.5Above the limit
400.380.5Below the limit
410.120.5Below the limit
420.130.5Below the limit
430.180.5Below the limit
440.280.5Below the limit
450.410.5Near the limit
460.330.5Below the limit
470.250.5Below the limit
480.340.5Below the limit
490.360.5Below the limit
500.350.5Below the limit
510.050.5Below the limit
520.050.5Below the limit
20240 of 8 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 2026Broodstock site: the limit may differ from the general one.
Show as table
Adult female lice per fish per week, 2024
WeekAdult female lice per fishLice limitStatus
10.220.5Below the limit
20.290.5Below the limit
30.320.5Below the limit
40.370.5Below the limit
50.330.5Below the limit
60.370.5Below the limit
70.400.5Near the limit
80.130.5Below the limit
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
29unknown0.5Not reported
30unknown0.5Not reported
31unknown0.5Not reported
32unknown0.5Not reported
33unknown0.5Not reported
34unknown0.5Not reported
35unknown0.5Not reported
36unknown0.5Not reported
37unknown0.5Not reported
38unknown0.5Not reported
39unknown0.5Not reported
40unknown0.5Not reported
41unknown0.5Not reported
42unknown0.5Not reported
43unknown0.5Not reported
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 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 2026Broodstock site: the limit may differ from the general one.
Show as table
Adult female lice per fish per week, 2023
WeekAdult female lice per fishLice limitStatus
400.460.5Near the limit
410.260.5Below the limit
420.180.5Below the limit
430.070.5Below the limit
440.160.5Below the limit
450.130.5Below the limit
460.180.5Below the limit
470.030.5Below the limit
480.020.5Below the limit
490.020.5Below the limit
500.050.5Below the limit
510.070.5Below the limit
520.150.5Below the limit

Treatments

Norwegian Food Safety Authority
  • Week 34, 2026
    Freshwater treatment1 pen
  • Week 29, 2026
    Mechanical delousing2 pens
  • Week 27, 2026
    Freshwater treatment, Mechanical delousing2 pens
  • Week 24, 2026
    Mechanical delousing, Freshwater treatment6 pens
Show all 16
  • Week 10, 2026
    Mechanical delousing, Freshwater treatment6 pens
  • Week 6, 2026
    Mechanical delousing, Thermal delousing4 pens
  • Week 51, 2025
    Mechanical delousing1 pen
  • Week 50, 2025
    Mechanical delousing, Freshwater treatmentWhole site
  • Week 46, 2025
    Mechanical delousing5 pens
  • Week 41, 2025
    Mechanical delousing, Freshwater treatment4 pens
  • Week 40, 2025
    Mechanical delousing, Freshwater treatment7 pens
  • Week 36, 2025
    Mechanical delousing, Freshwater treatmentWhole site
  • Week 46, 2023
    Medicinal bath2 pens · Andrelegemidler
  • Week 45, 2023
    Medicinal bath3 pens · Andrelegemidler
  • Week 42, 2023
    Mechanical delousing, Freshwater treatment4 pens
  • Week 41, 2023
    Freshwater treatment, Mechanical delousing6 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
  • 18 Dec 2025
    1-10 salmon escapedCause: En fisk ble mistet under prøvetaking, denne havnet utenfor merden. · recaptured 1 · Directorate of Fisheries
  • 20 Sep 2025
    Escape of salmon, number unknownrecaptured 1 · Directorate of Fisheries

Wellboat visits

39 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 Sep 2026Njord KyaUlvan4 h 4 min
22 Aug 2026KristiansundHausan2 h 20 min
21 Aug 2026KristiansundHausan2 h 51 min
19 Aug 2026KristiansundBadstuvika1 h 34 min
12 Aug 2026KristiansundGunnarøya5 h 7 min
11 Aug 2026KristiansundGunnarøya2 h 11 min
26 Jul 2026Ronja SkilsoyBadstuvika3 h 36 min
24 Jul 2026Ronja SkilsoyBadstuvika2 h 52 min
19 Jul 2026KristiansundKjørsvikgrunn disease or zone there6 h 54 min
03 Jul 2026Froy HovdingHausan6 h 24 min
02 Jul 2026Froy HovdingHausan15 h 57 min
09 Jun 2026Froy HovdingBadstuvika17 h 59 min
Show 50 older visits
ArrivalVesselPrevious farm (14 days)Duration
08 Jun 2026Froy HovdingBadstuvika16 h 5 min
03 Jun 2026KristiansundStorskogøya3 h 32 min
03 Jun 2026Froey VikingFugløya2 h 20 min
02 Jun 2026KristiansundStorskogøya2 h 13 min
01 Jun 2026KristiansundStorskogøya2 h 17 min
31 May 2026Froey VikingHendneset3 h 0 min
03 May 2026Froy HovdingHausan3 h 52 min
02 May 2026Froy HovdingHausan3 h 59 min
01 May 2026Froy HovdingHausan4 h 23 min
07 Apr 2026Froy HovdingHausan3 h 25 min
06 Apr 2026Froy HovdingHausan3 h 29 min
05 Apr 2026Froy HovdingHausan3 h 51 min
04 Apr 2026Froy HovdingHausan3 h 36 min
02 Apr 2026Froy HovdingHausan3 h 41 min
02 Apr 2026Froy HovdingHausan3 h 48 min
01 Apr 2026Froy HovdingHausan3 h 46 min
05 Mar 2026Froy HovdingKjørsvikgrunn6 h 37 min
04 Mar 2026Froy HovdingKjørsvikgrunn20 h 26 min
03 Mar 2026Froy HovdingKjørsvikgrunn15 h 44 min
02 Mar 2026Froy HovdingKjørsvikgrunn14 h 47 min
01 Mar 2026KristiansundEndreset2 h 35 min
13 Feb 2026Froey VikingStorskogøya2 h 8 min
12 Feb 2026Froey VikingStorskogøya1 h 10 min
11 Feb 2026Froey VikingStorskogøya3 h 54 min
07 Feb 2026Froy HovdingFugløya4 h 0 min
02 Feb 2026KristiansundLangskjæra II2 h 17 min
17 Jan 2026Froy HovdingHausan7 h 2 min
14 Dec 2025KristiansundNaustneset1 h 38 min
12 Dec 2025Froy HovdingEndreset7 h 2 min
11 Dec 2025Froy HovdingEndreset1 h 41 min
15 Nov 2025Froy HovdingFugløya12 h 7 min
13 Nov 2025KristiansundHausan41 h 52 min
12 Nov 2025KristiansundHausan1 h 47 min
06 Oct 2025Froy HovdingBogen29 h 36 min
05 Oct 2025Froy HovdingBogen13 h 45 min
03 Oct 2025Froy HovdingBogen2 h 55 min
03 Oct 2025KristiansundKjørsvikgrunn11 h 22 min
02 Oct 2025Froy HovdingBogen8 h 10 min
04 Sep 2025Froy HovdingReitholmen22 h 10 min
03 Sep 2025Froy HovdingReitholmen17 h 13 min
07 Mar 2024Froey VikingHausan2 h 2 min
06 Mar 2024Froey VikingHausan4 h 8 min
05 Mar 2024Froey VikingHausan2 h 48 min
23 Feb 2024KristiansundSjølsvik1 h 8 min
20 Feb 2024KristiansundSjølsvik3 h 23 min
19 Feb 2024KristiansundSjølsvik1 h 55 min
18 Feb 2024KristiansundSjølsvik1 h 46 min
15 Feb 2024NamsosStorskogøya1 h 28 min
13 Feb 2024NamsosStorskogøya1 h 41 min
13 Feb 2024NamsosStorskogøya1 h 37 min

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

Licences

Site MAB: 3,120 tonnes
LicenceTypeCapacityHolder
ST F 0071Kommersiell / stamfiskSalmon780 tLerøy Midt AS
ST H 0012Kommersiell / matfiskSalmon, Rainbow trout, Trout805 tLerøy Midt Sjø AS
ST H 0015Kommersiell / matfiskSalmon, Rainbow trout, Trout805 tLerøy Midt Sjø AS
ST H 0019Kommersiell / matfiskSalmon, Rainbow trout, Trout822 tLerøy Midt Sjø AS
ST H 0022Kommersiell / matfiskSalmon, Rainbow trout, Trout820 tLerøy Midt Sjø AS
ST H 0027Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tLerøy Midt Sjø AS
ST H 0046Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tLerøy Midt Sjø AS
TR HM 0001Forskning / matfiskSalmon780 tNofima AS
TR HM 0002Forskning / matfiskSalmon390 tNofima AS

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