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The Salmon Ledger
NOEN

Ådnøy Sø

Site 35297 · Sandnes municipality · Production area 2, Ryfylke

Below the lice limit, week 39Operated by Nordsjø Fjordbruk AS · group unknown
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0.33Adult female lice per fishLimit 0.50 · below the limitWeek 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026
1Weeks above the limit in 2026of 40 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026
2Lice treatments in 2026Latest: Other treatment, week 29, 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
60Wellboat visits in 2026by 2 different vessels · latest 07 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 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
10.100.5Below the limit
20.340.5Below the limit
30.380.5Below the limit
40.250.5Below the limit
50.080.5Below the limit
60.100.5Below the limit
70.290.5Below the limit
80.280.5Below the limit
90.210.5Below the limit
100.160.5Below the limit
110.230.5Below the limit
120.180.5Below the limit
130.390.5Below the limit
140.250.5Below the limit
150.240.5Below the limit
160.180.2Near the limit
170.080.2Below the limit
180.100.2Below the limit
190.010.2Below the limit
200.010.2Below the limit
210.130.2Below the limit
220.130.5Below the limit
230.150.5Below the limit
240.180.5Below the limit
250.110.5Below the limit
260.180.5Below the limit
270.210.5Below the limit
280.950.5Above the limit
290.040.5Below the limit
300.030.5Below the limit
310.000.5Below the limit
320.300.5Below the limit
330.340.5Below the limit
340.280.5Below the limit
350.300.5Below the limit
360.240.5Below the limit
370.210.5Below the limit
380.340.5Below the limit
390.330.5Below the limit
400.240.5Below the limit

Earlier years

20250 of 31 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
20.100.5Below the limit
30.130.5Below the limit
40.230.5Below the limit
50.330.5Below the limit
60.380.5Below the limit
70.480.5Near the limit
80.300.5Below the limit
90.430.5Near the limit
100.400.5Near the limit
110.400.5Near the limit
120.450.5Near the limit
130.350.5Below the limit
140.450.5Near the limit
150.400.5Near the limit
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
360.000.5Below the limit
370.000.5Below the limit
380.000.5Below the limit
390.000.5Below the limit
400.000.5Below the limit
410.000.5Below the limit
420.000.5Below the limit
430.000.5Below the limit
440.000.5Below the limit
450.000.5Below the limit
460.000.5Below the limit
470.000.5Below the limit
480.000.5Below the limit
490.040.5Below the limit
500.090.5Below the limit
510.030.5Below the limit
520.080.5Below the limit
20240 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, 2024
WeekAdult female lice per fishLice limitStatus
10.050.5Below the limit
20.020.5Below the limit
30.010.5Below the limit
40.000.5Below the limit
50.010.5Below the limit
60.040.5Below the limit
70.060.5Below the limit
80.130.5Below the limit
90.000.5Below the limit
100.150.5Below the limit
110.250.5Below the limit
120.090.5Below the limit
130.140.5Below the limit
140.190.5Below the limit
150.140.5Below the limit
160.110.2Below the limit
170.100.2Below the limit
180.050.2Below the limit
190.050.2Below the limit
200.110.2Below the limit
210.030.2Below the limit
220.050.5Below the limit
230.030.5Below the limit
240.110.5Below the limit
250.080.5Below the limit
260.050.5Below the limit
270.050.5Below the limit
280.050.5Below the limit
290.490.5Near the limit
300.380.5Below the limit
310.070.5Below the limit
320.170.5Below the limit
330.330.5Below the limit
340.430.5Near the limit
350.410.5Near the limit
360.310.5Below the limit
370.300.5Below the limit
380.450.5Near the limit
390.430.5Near the limit
400.400.5Near the limit
410.280.5Below the limit
420.330.5Below the limit
430.080.5Below the limit
440.100.5Below the limit
450.150.5Below the limit
460.030.5Below the limit
470.000.5Below the limit
480.050.5Below the limit
490.050.5Below the limit
500.080.5Below the limit
510.080.5Below the limit
520.000.5Below 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
400.000.5Below the limit
410.000.5Below the limit
420.000.5Below the limit
430.030.5Below the limit
440.000.5Below the limit
450.000.5Below the limit
460.010.5Below the limit
470.000.5Below the limit
480.000.5Below the limit
490.000.5Below the limit
500.000.5Below the limit
510.010.5Below the limit
520.000.5Below the limit

Treatments

Norwegian Food Safety Authority
  • Week 29, 2026
    Other treatment4 pens · Optilicer
  • Week 4, 2026
    Medicinal bath2 pens · Azamethiphos
  • Week 35, 2024
    Thermal delousing2 pens
  • Week 30, 2024
    Thermal delousing3 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

60 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
07 Aug 2026Kristoffer TrondsLangøyna Ø17 h 9 min
15 Jul 2026Kristoffer TrondsHåøya Nø13 h 38 min
14 Jul 2026Kristoffer TrondsHåøya Nø4 h 24 min
14 Jul 2026Kristoffer TrondsHåøya Nø9 h 1 min
13 Jul 2026Kristoffer TrondsHåøya Nø17 h 6 min
29 Apr 2026Krabatno other farm5 h 0 min
28 Apr 2026Krabatno other farm6 h 11 min
27 Apr 2026Krabatno other farm6 h 56 min
26 Apr 2026Krabatno other farm12 h 58 min
25 Apr 2026Krabatno other farm11 h 0 min
24 Apr 2026Krabatno other farm13 h 15 min
23 Apr 2026Krabatno other farm8 h 38 min
Show 70 older visits
ArrivalVesselPrevious farm (14 days)Duration
22 Apr 2026Krabatno other farm8 h 29 min
21 Apr 2026Krabatno other farm7 h 2 min
20 Apr 2026Krabatno other farm7 h 13 min
18 Apr 2026Krabatno other farm12 h 49 min
17 Apr 2026Krabatno other farm7 h 30 min
16 Apr 2026Krabatno other farm14 h 21 min
15 Apr 2026Krabatno other farm8 h 27 min
14 Apr 2026Krabatno other farm8 h 7 min
12 Apr 2026Krabatno other farm34 h 26 min
11 Apr 2026Krabatno other farm6 h 58 min
10 Apr 2026Krabatno other farm7 h 12 min
09 Apr 2026Krabatno other farm12 h 51 min
08 Apr 2026Krabatno other farm8 h 2 min
07 Apr 2026Krabatno other farm7 h 3 min
06 Apr 2026Krabatno other farm7 h 13 min
05 Apr 2026Krabatno other farm4 h 0 min
04 Apr 2026Krabatno other farm12 h 36 min
03 Apr 2026Krabatno other farm7 h 51 min
02 Apr 2026Krabatno other farm11 h 40 min
01 Apr 2026Krabatno other farm12 h 29 min
31 Mar 2026Krabatno other farm13 h 48 min
30 Mar 2026Krabatno other farm13 h 20 min
29 Mar 2026Krabatno other farm15 h 22 min
28 Mar 2026Krabatno other farm11 h 52 min
27 Mar 2026Krabatno other farm7 h 17 min
26 Mar 2026Krabatno other farm15 h 25 min
25 Mar 2026Krabatno other farm12 h 45 min
24 Mar 2026Krabatno other farm15 h 27 min
23 Mar 2026Krabatno other farm14 h 30 min
22 Mar 2026Krabatno other farm14 h 32 min
21 Mar 2026Krabatno other farm8 h 50 min
20 Mar 2026Krabatno other farm11 h 43 min
19 Mar 2026Krabatno other farm14 h 57 min
15 Mar 2026Krabatno other farm91 h 8 min
14 Mar 2026Krabatno other farm19 h 36 min
13 Mar 2026Krabatno other farm15 h 18 min
12 Mar 2026Krabatno other farm16 h 56 min
10 Mar 2026Krabatno other farm36 h 22 min
09 Mar 2026KrabatRøvær13 h 12 min
07 Mar 2026KrabatRøvær12 h 21 min
06 Mar 2026KrabatRøvær12 h 57 min
01 Mar 2026KrabatRøvær78 h 36 min
28 Feb 2026KrabatRøvær7 h 35 min
27 Feb 2026KrabatRøvær4 h 2 min
26 Jan 2026Kristoffer TrondsSunde2 h 47 min
26 Jan 2026Kristoffer TrondsSunde6 h 52 min
20 Jan 2026Kristoffer TrondsBjelkavik5 h 48 min
19 Jan 2026Kristoffer TrondsBjelkavik14 h 55 min
04 Sep 2025SeifjellSkipningsdalen2 h 41 min
01 Mar 2025Kristoffer TrondsSunde4 h 49 min
29 Dec 2024Kristoffer TrondsYstadneset5 h 13 min
29 Sep 2024Kristoffer TrondsSunde5 h 24 min
28 Sep 2024Kristoffer TrondsSunde5 h 25 min
03 Aug 2024Kristoffer TrondsSunde2 h 15 min
02 Aug 2024Kristoffer TrondsSkorpo5 h 0 min
24 Jul 2024Kristoffer TrondsSunde12 h 37 min
23 Jul 2024Kristoffer TrondsSunde16 h 19 min
06 Jul 2024Kristoffer TrondsSunde10 h 52 min
05 Jul 2024Kristoffer TrondsSunde19 h 44 min
04 Jul 2024NavoeyLangøyna Ø2 h 30 min
03 Jul 2024NavoeyLangøyna Ø14 h 43 min
02 Jul 2024NavoeyLangøyna Ø10 h 52 min
02 Jul 2024NavoeyLangøyna Ø2 h 35 min
01 Jul 2024NavoeyLangøyna Ø15 h 42 min
30 Jun 2024NavoeyLangøyna Ø14 h 33 min
29 Jun 2024NavoeyLangøyna Ø17 h 25 min
28 Jun 2024NavoeyLangøyna Ø12 h 1 min
28 Jun 2024NavoeyLangøyna Ø8 h 5 min
09 Jan 2024NavoeyHaugsnesvåg1 h 31 min
08 Jan 2024NavoeyHaugsnesvåg2 h 32 min

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

Who has reported

The companies that have submitted lice counts for this site, with the first and last week.

CompanyFromTo
Rogaland Fjordbruk ASWeek 40, 2023Week 47, 2025
Nordsjø Fjordbruk ASWeek 48, 2025Week 40, 2026

Source: Norwegian Food Safety Authority (organisation number on each lice report)

Licences

Site MAB: 1,950 tonnes
LicenceTypeCapacityHolder
H K 0034Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tNordsjø Fjordbruk AS
H K 0051Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tFjelberg Fjordbruk AS
H K 0062Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tFjelberg Fjordbruk AS
R FD 0005Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tNordsjø Fjordbruk AS
R H 0003Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tRøvær Fjordbruk AS
R R 0009Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tNordsjø Fjordbruk AS
R SD 0003Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tNordsjø Fjordbruk AS
R SD 0005Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tNordsjø Fjordbruk AS
R SD 0021Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tNordsjø Fjordbruk AS
R SD 0033Kommersiell / matfiskSalmon, Rainbow trout, Trout527 tNordsjø Fjordbruk AS
R SS 0017Kommersiell / matfiskSalmon, Rainbow trout, Trout830 tNordsjø Fjordbruk AS
R TV 0001Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tNordsjø Fjordbruk AS
R TV 0003Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tNordsjø Fjordbruk AS
R TV 0006Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tNordsjø Fjordbruk AS

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