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The Salmon Ledger
NOEN

Rensøya N

Site 10893 · Træna municipality · Production area 8, Helgeland til Bodø

Below the lice limit, week 39Operated by Nova Sea Havbruk AS · group unknown
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0.09Adult 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 30 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026
1Lice treatments in 2026Latest: Thermal delousing, 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
23Wellboat visits in 2026by 3 different vessels · latest 04 Sep 2026Derived from AIS · Norwegian Coastal Administration (AIS) · updated 01 Oct 2026
2Escapes reported6 salmon, August 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 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
10.040.5Below the limit
20.030.5Below the limit
30.020.5Below the limit
40.030.5Below the limit
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
160.000.5Below the limit
170.000.5Below the limit
180.000.5Below the limit
190.000.5Below the limit
200.000.5Below the limit
210.000.2Below the limit
220.000.2Below the limit
230.000.2Below the limit
240.000.2Below the limit
250.000.2Below the limit
260.000.2Below the limit
270.010.5Below the limit
280.030.5Below the limit
290.040.5Below the limit
300.050.5Below the limit
310.030.5Below the limit
320.040.5Below the limit
330.050.5Below the limit
340.040.5Below the limit
350.030.5Below the limit
360.020.5Below the limit
370.060.5Below the limit
380.070.5Below the limit
390.090.5Below the limit

Earlier years

20251 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
70.010.5Below the limit
80.010.5Below the limit
90.020.5Below the limit
100.010.5Below the limit
110.000.5Below the limit
120.000.5Below the limit
130.020.5Below the limit
140.010.5Below the limit
150.010.5Below the limit
160.030.5Below the limit
170.010.5Below the limit
180.000.5Below the limit
190.000.5Below the limit
200.000.5Below the limit
210.000.2Below the limit
220.020.2Below the limit
230.000.2Below the limit
240.000.2Below the limit
250.000.2Below the limit
260.040.2Below the limit
270.060.5Below the limit
280.070.5Below the limit
290.050.5Below the limit
300.080.5Below the limit
310.180.5Below the limit
320.220.5Below the limit
330.290.5Below the limit
340.220.5Below the limit
350.220.5Below the limit
360.200.5Below the limit
370.370.5Below the limit
380.300.5Below the limit
390.370.5Below the limit
400.460.5Near the limit
411.100.5Above the limit
420.400.5Near the limit
430.040.5Below the limit
440.020.5Below the limit
450.010.5Below the limit
460.020.5Below the limit
470.020.5Below the limit
480.020.5Below the limit
490.030.5Below the limit
500.030.5Below the limit
510.050.5Below the limit
520.040.5Below the limit
20240 of 17 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
10.060.5Below the limit
20.180.5Below the limit
30.180.5Below the limit
40.150.5Below the limit
5unknown0.5Reported without a count
6unknown0.5Reported without a count
7unknown0.5Not reported
8unknown0.5Not reported
9unknown0.5Not reported
10unknown0.5Not reported
11unknown0.5Not reported
12unknown0.5Not reported
13unknown0.5Not reported
14unknown0.5Not reported
15unknown0.5Not reported
16unknown0.5Not reported
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
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
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
490.000.5Below the limit
500.030.5Below the limit
510.000.5Below the limit
520.010.5Below 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
400.350.5Below the limit
410.480.5Near the limit
420.160.5Below the limit
430.140.5Below the limit
440.180.5Below the limit
450.240.5Below the limit
460.050.5Below the limit
470.040.5Below the limit
480.050.5Below the limit
490.130.5Below the limit
500.060.5Below the limit
510.050.5Below the limit
520.030.5Below the limit

Treatments

Norwegian Food Safety Authority
  • Week 29, 2026
    Thermal delousing1 pen
  • Week 43, 2025
    Other treatment5 pens · Kombi Ferskv+Thermo
  • Week 42, 2025
    Other treatment6 pens · Kombi Ferskv+Thermo
  • Week 46, 2023
    Other treatmentWhole site · FLS
Show all 5
  • Week 42, 2023
    Other treatment6 pens · FLS, Thermolicer

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
  • 02 Aug 2025
    6 salmon escapedCause: Under lusetelling, fisken blir tilbakeført fra oppvåkningskar til merden men slangen ble ikke montert inn til merden. 6 fisker havnet på havet før feilen ble oppdaget. Beredskapsgarn utsett umiddelbart på lokaliteten · recaptured 1 · Directorate of Fisheries
  • 20 May 2021
    1 salmon escapedCause: Håven som fisken var i ble holdt for høyt, og dermed ramlet fisken ved siden av karet og på dekk. Fisken sklei ut port i rekka, og ut i havet. Under denne lusetellingen ble det brukt et annet fartøy enn vanligvis, og sikkerhetsnettet var ikke tilpasset denne båten. · recaptured 1 · Directorate of Fisheries

Wellboat visits

23 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 2026OddoeyGrasholman4 h 28 min
03 Sep 2026OddoeyGrasholman18 h 29 min
02 Sep 2026OddoeyGrasholman8 h 0 min
13 Aug 2026OddoeyBuktodden Nø31 h 57 min
27 Jul 2026OddoeySkogsholmen24 h 19 min
18 Jul 2026FaeroeysundNaustholmen6 h 28 min
17 Jul 2026FaeroeysundNaustholmen25 h 39 min
13 Jul 2026OddoeySkogsholmen29 h 31 min
12 Jul 2026OddoeySkogsholmen1 h 48 min
23 Jun 2026OddoeyGrasholman24 h 5 min
03 Jun 2026FaeroeysundSelsøyvær5 h 17 min
19 May 2026OddoeyKorsvika8 h 17 min
Show 69 older visits
ArrivalVesselPrevious farm (14 days)Duration
18 May 2026OddoeyKorsvika8 h 34 min
22 Apr 2026OddoeyKokvika17 h 39 min
05 Apr 2026FaeroeysundStokkasjøen3 h 26 min
04 Apr 2026FaeroeysundStokkasjøen3 h 17 min
03 Apr 2026FaeroeysundStokkasjøen6 h 3 min
02 Apr 2026FaeroeysundStokkasjøen2 h 50 min
27 Jan 2026Inter FjordNaustholmen1 h 30 min
13 Jan 2026FaeroeysundNaustholmen2 h 6 min
12 Jan 2026FaeroeysundNaustholmen2 h 18 min
08 Jan 2026FaeroeysundNaustholmen1 h 30 min
07 Jan 2026FaeroeysundNaustholmen1 h 48 min
20 Dec 2025Inter FjordNaustholmen3 h 33 min
12 Dec 2025Inter FjordNaustholmen2 h 6 min
12 Dec 2025Inter FjordSkauholmen4 h 24 min
10 Dec 2025Inter FjordNaustholmen3 h 21 min
07 Dec 2025Inter FjordAlsvåg2 h 46 min
01 Dec 2025OddoeyKlipen15 h 20 min
18 Nov 2025Inter FjordNaustholmen1 h 24 min
18 Nov 2025Inter FjordNaustholmen4 h 36 min
13 Nov 2025Inter FjordNaustholmen2 h 22 min
23 Oct 2025FaeroeysundLangholmen51 min
22 Oct 2025FaeroeysundLangholmen8 h 47 min
21 Oct 2025FaeroeysundLangholmen17 h 59 min
20 Oct 2025FaeroeysundLangholmen12 h 11 min
16 Oct 2025FaeroeysundLangholmen16 h 2 min
12 Oct 2025OddoeyNordbotnet1 h 52 min
12 Oct 2025OddoeyNordbotnet1 h 42 min
07 Oct 2025FaeroeysundSkauholmen3 h 36 min
05 Oct 2025OddoeyKorsvika2 h 5 min
25 Sep 2025OddoeyIgerøy Ø23 h 39 min
21 Sep 2025OddoeySundsøy6 h 47 min
16 Sep 2025FaeroeysundLeivsethamran7 h 46 min
02 Sep 2025Inter FjordNaustholmen3 h 3 min
01 Sep 2025Inter FjordNaustholmen6 h 41 min
26 Aug 2025Inter FjordNaustholmen1 h 46 min
20 Aug 2025Inter FjordSeiskjæret2 h 30 min
03 Aug 2025OddoeyKorsvika7 h 46 min
02 Aug 2025OddoeyKorsvika10 h 51 min
13 Jul 2025OddoeyKorsvika23 h 47 min
25 Jun 2025FaeroeysundDjupvik13 h 15 min
24 Jun 2025OddoeyMåvær9 h 49 min
21 Jun 2025FaeroeysundDjupvik8 h 28 min
15 Jun 2025OddoeySundsøy3 h 56 min
14 Jun 2025OddoeySundsøy8 h 41 min
30 May 2025OddoeyNordskaftet2 h 32 min
09 May 2025OddoeySkonseng8 h 34 min
23 Apr 2025OddoeyMelkøya22 h 4 min
05 Feb 2025OddoeySundsøy4 h 31 min
21 Dec 2024OddoeyKorsvika15 h 35 min
03 Nov 2024FaeroeysundStigvika1 h 46 min
02 Nov 2024FaeroeysundStigvika7 h 45 min
26 Oct 2024OddoeyKlipen7 h 31 min
05 Oct 2024FaeroeysundKlipen1 h 42 min
04 Oct 2024FaeroeysundKlipen2 h 18 min
03 Oct 2024FaeroeysundKlipen1 h 57 min
02 Oct 2024OddoeySundsøy5 h 55 min
01 Oct 2024OddoeySundsøy1 h 22 min
05 Feb 2024FaeroeysundNaustholmen1 h 50 min
04 Feb 2024FaeroeysundNaustholmen1 h 47 min
26 Jan 2024FaeroeysundNaustholmen3 h 4 min
24 Jan 2024FaeroeysundNaustholmen1 h 28 min
19 Jan 2024OddoeyKalvøya6 h 54 min
18 Jan 2024OddoeyKalvøya3 h 29 min
18 Jan 2024GrotangerNaustholmen2 h 3 min
17 Jan 2024GrotangerBrattberg1 h 35 min
12 Jan 2024GrotangerNaustholmen1 h 31 min
11 Jan 2024GrotangerNaustholmen1 h 13 min
02 Jan 2024FaeroeysundNaustholmen1 h 21 min
01 Jan 2024Faeroeysundno other farm1 h 19 min

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

Licences

Site MAB: 3,600 tonnes
LicenceTypeCapacityHolder
N AH 0001Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tNova Sea Havbruk AS
N AH 0002Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tNova Sea Havbruk AS
N L 0001Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tNova Sea Havbruk AS
N L 0002Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tNova Sea Havbruk AS
N L 0062Visning / matfiskSalmon, Rainbow trout, Trout780 tLax Expo AS
N R 0001Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tNova Sea Havbruk AS
N R 0006Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tNova Sea Havbruk AS
N R 0008Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tNova Sea Havbruk AS
N R 0030Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tNova Sea Havbruk AS

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