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The Salmon Ledger
NOEN

Rataren

Site 28636 · Frøya municipality · Production area 6, Nordmøre og Sør-Trøndelag

Status unknown: not reported in week 39Operated by Salmar Oppdrett AS · group SalMar
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unknownAdult female lice per fishNo count in week 39. Latest: 0.35 in week 33, 2026Week 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026
0Weeks above the limit in 2026of 33 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026
7Lice treatments in 2026Latest: Mechanical delousing, week 28, 20262026 · Norwegian Food Safety Authority · updated 01 Oct 2026
1Active disease casesPD, confirmed 06 Mar 2026Register since 26 Nov 2024 · Norwegian Food Safety Authority · updated 01 Oct 2026
27Wellboat 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 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
10.460.5Near the limit
20.470.5Near the limit
30.400.5Near the limit
40.350.5Below the limit
50.240.5Below the limit
60.290.5Below the limit
70.310.5Below the limit
80.200.5Below the limit
90.240.5Below the limit
100.450.5Near the limit
110.480.5Near the limit
120.460.5Near the limit
130.380.5Below the limit
140.320.5Below the limit
150.290.5Below the limit
160.190.2Near the limit
170.180.2Near the limit
180.120.2Below the limit
190.130.2Below the limit
200.110.2Below the limit
210.050.2Below the limit
220.030.5Below the limit
230.060.5Below the limit
240.130.5Below the limit
250.130.5Below the limit
260.210.5Below the limit
270.120.5Below the limit
280.060.5Below the limit
290.140.5Below the limit
300.170.5Below the limit
310.280.5Below the limit
320.310.5Below the limit
330.350.5Below the limit
34unknown0.5Not reported
35unknown0.5Not reported
36unknown0.5Not reported
37unknown0.5Not reported
38unknown0.5Not reported
39unknown0.5Not reported

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
10.000.5Below the limit
20.000.5Below the limit
30.000.5Below the limit
40.000.5Below the limit
50.000.5Below the limit
60.000.5Below the limit
70.000.5Below the limit
80.000.5Below the limit
90.000.5Below the limit
100.000.5Below the limit
110.020.5Below the limit
120.020.5Below the limit
130.050.5Below the limit
140.010.5Below the limit
150.040.5Below the limit
160.000.2Below the limit
170.070.2Below the limit
180.010.2Below the limit
190.010.2Below the limit
200.010.2Below the limit
210.010.2Below the limit
220.020.5Below the limit
230.040.5Below the limit
240.060.5Below the limit
250.090.5Below the limit
260.140.5Below the limit
270.110.5Below the limit
280.150.5Below the limit
290.320.5Below the limit
300.380.5Below the limit
310.200.5Below the limit
320.240.5Below the limit
330.960.5Above the limit
340.240.5Below the limit
350.110.5Below the limit
360.310.5Below the limit
370.180.5Below the limit
380.340.5Below the limit
391.020.5Above the limit
400.360.5Below the limit
410.440.5Near the limit
420.470.5Near the limit
430.120.5Below the limit
440.150.5Below the limit
450.090.5Below the limit
460.150.5Below the limit
470.390.5Below the limit
480.320.5Below the limit
490.400.5Near the limit
500.100.5Below the limit
510.140.5Below the limit
520.160.5Below the limit
20241 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, 2024
WeekAdult female lice per fishLice limitStatus
10.350.5Below the limit
20.490.5Near the limit
30.450.5Near the limit
40.100.5Below the limit
50.090.5Below the limit
60.070.5Below the limit
70.100.5Below the limit
80.060.5Below the limit
90.090.5Below the limit
100.120.5Below the limit
110.090.5Below the limit
120.100.5Below the limit
130.120.5Below the limit
140.190.5Below the limit
150.160.5Below the limit
160.130.2Below the limit
170.140.2Below the limit
180.260.2Above the limit
190.050.2Below the limit
200.020.2Below the limit
210.080.2Below the limit
220.210.5Below the limit
230.280.5Below the limit
240.480.5Near the limit
250.240.5Below the limit
260.440.5Near the limit
270.410.5Near the limit
280.300.5Below the limit
290.450.5Near the limit
300.490.5Near the limit
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
520.000.5Below the limit
20231 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
400.180.5Below the limit
410.210.5Below the limit
420.140.5Below the limit
430.110.5Below the limit
440.280.5Below the limit
450.420.5Near the limit
461.020.5Above the limit
470.310.5Below the limit
480.200.5Below the limit
490.250.5Below the limit
500.260.5Below the limit
510.250.5Below the limit
520.410.5Near the limit

Treatments

Norwegian Food Safety Authority
  • Week 28, 2026
    Mechanical delousing5 pens
  • Week 24, 2026
    Mechanical delousing5 pens
  • Week 18, 2026
    Mechanical delousing7 pens
  • Week 15, 2026
    Mechanical delousing1 pen
Show all 27
  • Week 13, 2026
    Mechanical delousing2 pens
  • Week 12, 2026
    Mechanical delousing4 pens
  • Week 11, 2026
    Mechanical delousing1 pen
  • Week 50, 2025
    Mechanical delousing7 pens
  • Week 48, 2025
    Mechanical delousing1 pen
  • Week 47, 2025
    Mechanical delousing6 pens
  • Week 43, 2025
    Mechanical delousing7 pens
  • Week 40, 2025
    Other treatment4 pens · Ferskvann/Thermolicer
  • Week 39, 2025
    Other treatment4 pens · Ferskvann/Thermolicer · Ferskvann/Wellfighter
  • Week 35, 2025
    Mechanical delousing7 pens
  • Week 34, 2025
    Mechanical delousing7 pens
  • Week 31, 2025
    Mechanical delousing7 pens
  • Week 28, 2024
    Other treatment1 pen · Hydrolicer
  • Week 27, 2024
    Other treatment7 pens · Wellfighter, Hydrolicer
  • Week 25, 2024
    Other treatment4 pens · Hydrolicer
  • Week 24, 2024
    Other treatment3 pens · Hydrolicer
  • Week 19, 2024
    Other treatment7 pens · Hydrolicer
  • Week 4, 2024
    Other treatment4 pens · Ferskvann/ Hydrolicer
  • Week 3, 2024
    Other treatment3 pens · Ferskvann/ Hydrolicer
  • Week 48, 2023
    Other treatment2 pens · Ferskvann/ Hydrolicer
  • Week 47, 2023
    Other treatment3 pens · Ferskvann/ Hydrolicer
  • Week 46, 2023
    Other treatment5 pens · Hydrolicer, Ferskvann/ Hydrolicer
  • Week 40, 2023
    Other treatment7 pens · Hydrolicer

Disease

Norwegian Food Safety Authority

Escapes

Directorate of Fisheries

No escapes reported from this site since 2006.

Wellboat visits

27 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 2026Froy OdinNordskag5 h 22 min
25 Aug 2026Froy OdinReiråklakken4 h 8 min
06 Aug 2026Froy OdinNordskag4 h 57 min
08 Jul 2026Ro VisionRataren II disease or zone there1 h 3 min
02 Jul 2026Ronja FollafossNordskag2 h 43 min
01 Jul 2026Ronja FollafossNordskag3 h 18 min
30 Jun 2026Ronja FollafossNordskag3 h 16 min
22 Jun 2026Froy OdinNordskag2 h 47 min
14 Jun 2026Ro VisionRataren II disease or zone there1 h 42 min
18 May 2026Ronja PrincessHendneset3 h 22 min
14 May 2026Froy OdinNordskag4 h 33 min
13 May 2026Ro VisionNordskag2 h 25 min
Show 62 older visits
ArrivalVesselPrevious farm (14 days)Duration
12 May 2026Ro VisionFarmannsøya5 h 25 min
11 May 2026Froy OdinNordskag3 h 22 min
16 Apr 2026Ronja SpiritNordskag2 h 2 min
15 Apr 2026Ronja SpiritNordskag8 h 13 min
14 Apr 2026Ronja SpiritNordskag3 h 11 min
14 Apr 2026Ronja SpiritNordskag3 h 29 min
13 Apr 2026Ronja SpiritNordskag9 h 26 min
12 Apr 2026Ronja SpiritNordskag1 h 31 min
11 Apr 2026Ronja SpiritNordskag13 h 9 min
09 Apr 2026AasvaerfjordNordskag1 h 12 min
09 Apr 2026AasvaerfjordNordskag4 h 31 min
08 Apr 2026Ronja SpiritNordskag13 h 16 min
06 Apr 2026Ronja SpiritNordskag3 h 2 min
08 Mar 2026Ronja SpiritAndholmen 13 h 19 min
05 Mar 2026Ronja SpiritAndholmen 12 h 10 min
05 Oct 2025Ro VisionRataren II5 h 4 min
03 Oct 2025Ro VisionRataren II2 h 56 min
02 Oct 2025Ro VisionRataren II8 h 37 min
01 Oct 2025Ro VisionRataren II9 h 25 min
30 Sep 2025Ro VisionRataren II18 h 19 min
29 Sep 2025Ro VisionRataren II2 h 17 min
28 Sep 2025Ro VisionRataren II25 h 12 min
27 Sep 2025Ro VisionRataren II16 h 32 min
26 Sep 2025Ronja PrincessNordskag4 h 9 min
25 Sep 2025Ronja PrincessNordskag1 h 38 min
02 Aug 2025Ro VisionRataren II4 h 44 min
02 Aug 2025Ro VisionRataren II2 h 34 min
02 Aug 2025Ro VisionRataren II2 h 55 min
31 Jul 2025Ro VisionSalatskjæra25 h 49 min
30 Jul 2025Ro VisionSalatskjæra13 h 35 min
23 Dec 2024Ronja Vitano other farm6 h 1 min
22 Dec 2024Ronja AuroraRuggstein4 h 35 min
25 Sep 2024Ro VisionNordskag2 h 23 min
25 Sep 2024Ro VisionNordskag1 h 51 min
25 Sep 2024Ro VisionRataren II disease or zone there1 h 28 min
05 Sep 2024Froy OdinRataren II disease or zone there3 h 52 min
03 Sep 2024Froy OdinRataren II disease or zone there4 h 8 min
03 Sep 2024Froy OdinRataren II disease or zone there1 h 49 min
03 Sep 2024Froy OdinNordskag1 h 36 min
02 Sep 2024Froy OdinNordskag2 h 7 min
01 Sep 2024Froy OdinRataren II disease or zone there1 h 52 min
10 Aug 2024Ro SenjaNordskag2 h 4 min
10 Aug 2024Ro SenjaNordskag1 h 32 min
09 Aug 2024Ro SenjaNordskag2 h 5 min
09 Aug 2024Ro SenjaNordskag2 h 5 min
08 Aug 2024Ro SenjaNordskag2 h 18 min
06 Aug 2024Ro SenjaNordskag1 h 42 min
05 Aug 2024Ro SenjaNordskag2 h 24 min
01 Aug 2024Ronja PrincessNordskag2 h 53 min
29 Jul 2024Ronja PrincessNordskag3 h 39 min
28 Jul 2024Ronja PrincessNordskag2 h 32 min
28 Jul 2024Ronja PrincessNordskag2 h 13 min
03 Jul 2024Ronja PrincessNordskag15 h 14 min
26 Jan 2024Froy OdinNordskag8 h 59 min
25 Jan 2024Froy OdinNordskag19 h 33 min
24 Jan 2024Froy OdinNordskag15 h 1 min
19 Jan 2024Froy OdinRataren II34 h 41 min
18 Jan 2024Froy OdinRataren II10 h 44 min
17 Jan 2024Froy OdinRataren II8 h 12 min
16 Jan 2024Froy OdinRataren II7 h 21 min
16 Jan 2024Froy OdinRataren II5 h 15 min
15 Jan 2024Froy OdinRataren II2 h 37 min

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

Licences

Site MAB: 10,920 tonnes
LicenceTypeCapacityHolder
M VS 0020Forskning / matfiskSalmon, Rainbow trout, Trout780 tBenchmark Genetics Norway AS
ST AA 0002Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tSalmar Oppdrett AS
ST F 0010Kommersiell / matfiskSalmon, Rainbow trout, Trout3,837 tSalmar Oppdrett AS
ST F 0017Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tSalmar Oppdrett AS
ST F 0026Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tSalmar Oppdrett AS
ST F 0027Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tSalmar Oppdrett AS
ST F 0060Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tSalmar Oppdrett AS
ST F 0903Kommersiell / alger til fôr/konsumButare, Fingertare, Fjærehinne uspes, Havsalat, Krusflik, Sukkertare (oppdrett), SølunknownSintef Ocean AS
ST R 0001Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tSalmar Oppdrett AS
ST R 0006Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tSalmar Oppdrett AS
ST R 0018Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tSalmar Oppdrett AS
ST R 0023Forskning / matfiskSalmon2,340 tSintef Ocean AS
ST R 0024Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tSalmar Oppdrett AS
TR F 0009Kommersiell / matfiskSalmon, Rainbow trout, Trout100 tSalmar Oppdrett AS
TR F 0012Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tOcean Farming AS
TR F 0013Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tOcean Farming AS
TR F 0014Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tOcean Farming AS
TR F 0015Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tOcean Farming AS

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