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The Salmon Ledger
NOEN

Rennaren

Site 17357 · Stavanger municipality · Production area 2, Ryfylke

Below the lice limit, week 39Operated by Grieg Seafood Farming AS · group Grieg Seafood
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0.01Adult 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 39 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026
4Lice treatments in 2026Latest: Freshwater treatment, week 39, 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
29Wellboat visits in 2026by 2 different vessels · latest 09 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.

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
10.130.5Below the limit
20.190.5Below the limit
30.150.5Below the limit
40.190.5Below the limit
50.150.5Below the limit
60.190.5Below the limit
70.150.5Below the limit
80.260.5Below the limit
90.150.5Below the limit
100.270.5Below the limit
110.360.5Below the limit
120.340.5Below the limit
130.330.5Below the limit
140.480.5Near the limit
150.210.5Below the limit
160.140.2Below the limit
170.190.2Near the limit
180.370.2Above the limit
190.150.2Below the limit
200.150.2Below the limit
210.080.2Below the limit
220.260.5Below the limit
230.230.5Below the limit
240.230.5Below the limit
250.300.5Below the limit
260.350.5Below the limit
270.250.5Below the limit
280.100.5Below the limit
290.350.5Below the limit
300.100.5Below the limit
310.000.5Below the limit
320.000.5Below the limit
330.100.5Below the limit
340.000.5Below the limit
350.400.5Near the limit
360.400.5Near the limit
370.190.5Below the limit
380.210.5Below the limit
390.010.5Below the limit

Earlier years

20251 of 41 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
10.180.5Below the limit
20.080.5Below the limit
30.260.5Below the limit
40.260.5Below the limit
50.620.5Above the limit
60.430.5Near the limit
70.330.5Below the limit
80.400.5Near the limit
90.370.5Below the limit
100.350.5Below the limit
110.200.5Below the limit
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
230.000.5Below the limit
240.000.5Below the limit
250.000.5Below the limit
260.000.5Below the limit
270.310.5Below the limit
280.280.5Below the limit
290.340.5Below the limit
300.350.5Below the limit
310.450.5Near the limit
320.440.5Near the limit
330.410.5Near the limit
340.330.5Below the limit
350.180.5Below the limit
360.100.5Below the limit
370.010.5Below the limit
380.110.5Below the limit
390.120.5Below the limit
400.050.5Below the limit
410.090.5Below the limit
420.030.5Below the limit
430.040.5Below the limit
440.030.5Below the limit
450.010.5Below the limit
460.080.5Below the limit
470.040.5Below the limit
480.030.5Below the limit
490.190.5Below the limit
500.160.5Below the limit
510.250.5Below the limit
520.070.5Below 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
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Adult female lice per fish per week, 2024
WeekAdult female lice per fishLice limitStatus
10.060.5Below the limit
20.280.5Below the limit
30.220.5Below the limit
40.100.5Below the limit
50.310.5Below the limit
60.320.5Below the limit
70.420.5Near the limit
80.240.5Below the limit
90.180.5Below the limit
100.280.5Below the limit
110.450.5Near the limit
120.330.5Below the limit
130.280.5Below the limit
140.210.5Below the limit
150.220.5Below the limit
160.150.2Below the limit
170.160.2Below the limit
180.120.2Below the limit
190.190.2Near the limit
200.150.2Below the limit
210.080.2Below the limit
220.050.5Below the limit
230.160.5Below the limit
240.110.5Below the limit
250.080.5Below the limit
260.120.5Below the limit
270.190.5Below the limit
280.330.5Below the limit
290.360.5Below the limit
300.360.5Below the limit
310.300.5Below the limit
320.270.5Below the limit
330.340.5Below the limit
340.360.5Below the limit
350.460.5Near the limit
360.490.5Near the limit
370.380.5Below the limit
380.160.5Below the limit
390.130.5Below the limit
400.130.5Below the limit
410.210.5Below the limit
420.110.5Below the limit
430.160.5Below the limit
440.070.5Below the limit
450.060.5Below the limit
460.040.5Below the limit
470.120.5Below the limit
480.020.5Below the limit
490.040.5Below the limit
500.070.5Below the limit
510.000.5Below 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
410.030.5Below the limit
420.010.5Below the limit
430.000.5Below the limit
440.020.5Below the limit
450.060.5Below the limit
460.160.5Below the limit
470.070.5Below the limit
480.060.5Below the limit
490.030.5Below the limit
500.070.5Below the limit
510.060.5Below the limit
520.170.5Below the limit

Treatments

Norwegian Food Safety Authority
  • Week 39, 2026
    Freshwater treatment1 pen
  • Week 31, 2026
    Freshwater treatment1 pen
  • Week 27, 2026
    Freshwater treatment1 pen
  • Week 19, 2026
    Medicinal bathAzamethiphos

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
  • 31 Dec 2025
    1-10 salmon escapedCause: Ukjent · recaptured 1 · Directorate of Fisheries
  • 31 Dec 2025
    1-10 salmon escapedDirectorate of Fisheries

Wellboat visits

29 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
09 Sep 2026Ronja AzulDyrholmen1 h 15 min
09 Sep 2026Ronja AzulDyrholmen1 h 25 min
08 Sep 2026Ronja AzulDyrholmen1 h 18 min
07 Sep 2026Ronja AzulDyrholmen1 h 27 min
07 Sep 2026Ronja AzulDyrholmen1 h 12 min
06 Sep 2026Ronja AzulDyrholmen1 h 30 min
06 Sep 2026Ronja AzulDyrholmen1 h 27 min
05 Sep 2026Ronja AzulDyrholmen1 h 22 min
31 Jul 2026Ronja AzulØklandsvågen13 h 22 min
30 Jul 2026Ronja AzulØklandsvågen2 h 36 min
30 Jun 2026Ronja AzulHelgøy2 h 29 min
30 Jun 2026Ronja AzulHelgøy2 h 31 min
Show 51 older visits
ArrivalVesselPrevious farm (14 days)Duration
30 Jun 2026Ronja AzulHelgøy8 h 49 min
17 Jun 2026Ronja AzulOmmundsteigen2 h 39 min
15 Jun 2026RosteinHelgøy1 h 16 min
24 May 2026Ronja AzulOmmundsteigen2 h 26 min
20 May 2026Ronja AzulPorsvika2 h 46 min
13 May 2026Ronja AzulPorsvika2 h 22 min
11 May 2026Ronja AzulOmmundsteigen3 h 31 min
06 May 2026Ronja AzulLangevågen1 h 39 min
05 May 2026Ronja AzulHelgøy1 h 21 min
05 May 2026Ronja AzulHelgøy3 h 19 min
05 May 2026Ronja AzulHelgøy5 h 53 min
04 May 2026Ronja AzulHelgøy3 h 7 min
04 May 2026Ronja AzulHelgøy3 h 5 min
04 May 2026Ronja AzulHelgøy2 h 45 min
03 May 2026Ronja AzulHelgøy2 h 10 min
25 Mar 2026Ronja AzulHelgøy2 h 18 min
20 Mar 2026Ronja AzulLangevågen9 h 33 min
28 Dec 2025Ronja AzulStore Teistholmen Ø12 h 8 min
28 Dec 2025Ronja AzulStore Teistholmen Ø1 h 33 min
27 Dec 2025Ronja AzulStore Teistholmen Ø19 h 59 min
26 Dec 2025Ronja AzulStore Teistholmen Ø2 h 22 min
25 Dec 2025Ronja AzulStore Teistholmen Ø19 h 39 min
22 Dec 2025Ronja AzulStore Teistholmen Ø41 h 0 min
21 Dec 2025Ronja AzulStore Teistholmen Ø18 h 58 min
18 Nov 2025Ronja AzulHelgøy13 h 5 min
25 Oct 2025Ronja AzulHelgøy13 h 49 min
20 Oct 2025Ronja AzulHestholmen Ø8 h 36 min
25 Sep 2025Ronja AzulOanes Sjø1 h 42 min
20 Jul 2025Ronja AzulHestholmen Ø1 h 36 min
13 Jul 2025Ronja AzulOanes Sjø1 h 40 min
03 Jul 2025Ronja AzulKilavågen Sjø2 h 26 min
02 Jul 2025Ronja AzulKilavågen Sjø52 min
01 Jul 2025Ronja AzulKilavågen Sjø4 h 16 min
18 Mar 2025Ronja AzulLangevågen4 h 2 min
15 Mar 2025Ronja AzulHundaneset3 h 9 min
13 Feb 2025Ronja AzulHelgøy1 h 33 min
06 Feb 2025Ronja AzulGråtnes2 h 9 min
31 Jan 2025Ronja AzulHelgøy3 h 35 min
22 Nov 2024Ronja AzulHelgøy15 h 55 min
21 Nov 2024Ronja AzulHelgøy10 h 22 min
20 Nov 2024Ronja AzulTrælsøyosen2 h 27 min
20 Nov 2024Norwegian GannetVadholmen5 h 42 min
12 Nov 2024Ronja AzulBuholmen1 h 30 min
08 Nov 2024Ronja AzulSkorpeosen1 h 19 min
06 Nov 2024Norwegian GannetVadholmen5 h 14 min
03 Nov 2024Norwegian GannetStore Teistholmen Ø5 h 43 min
02 Nov 2024Ronja AzulDyrholmen2 h 44 min
22 Oct 2024Ronja AzulHelgøy3 h 38 min
29 Sep 2024Ronja AzulHelgøy1 h 21 min
21 Sep 2024Ronja AzulSkaganeset2 h 16 min
17 Sep 2024Ronja AzulTeigane4 h 0 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
Grieg Seafood Rogaland Sjø ASWeek 40, 2023Week 47, 2025
Cermaq Finnmark Farming ASWeek 50, 2024Week 50, 2024
Grieg Seafood Farming ASWeek 48, 2025Week 39, 2026

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

Licences

Site MAB: 5,120 tonnes
LicenceTypeCapacityHolder
R B 0001Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tGrieg Seafood Farming AS
R B 0003Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tGrieg Seafood Farming AS
R B 0005Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tGrieg Seafood Farming AS
R B 0013Kommersiell / matfiskSalmon, Rainbow trout, Trout527 tGrieg Seafood Farming AS
R F 0002Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tGrieg Seafood Farming AS
R R 0002Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tGrieg Seafood Farming AS
R R 0010Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tGrieg Seafood Farming AS
R S 0001Forskning / matfiskSalmon, Rainbow trout, Trout780 tSkretting AS
R S 0002Forskning / matfiskSalmon, Rainbow trout, Trout780 tSkretting AS
R SD 0002Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tGrieg Seafood Farming AS
R SD 0023Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tGrieg Seafood Farming AS
R ST 0015Undervisning / matfiskSalmon, Rainbow trout, Trout780 tRogaland Fylkeskommune

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