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The Salmon Ledger
NOEN

Kalvhylla

Site 36217 · Vevelstad municipality · Production area 8, Helgeland til Bodø

Status unknown: not reported in week 39Operated by Nova Sea Havbruk AS · group unknown
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unknownAdult female lice per fishNo count in week 39. Latest: 0.00 in week 18, 2026Week 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026
0Weeks above the limit in 2026of 18 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026
1Lice treatments in 2026Latest: Medicinal bath, week 3, 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
38Wellboat visits in 2026by 4 different vessels · latest 05 May 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 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
10.200.5Below the limit
20.150.5Below the limit
30.210.5Below the limit
40.180.5Below the limit
50.370.5Below the limit
60.290.5Below the limit
70.290.5Below the limit
80.100.5Below the limit
90.130.5Below the limit
100.100.5Below the limit
110.150.5Below the limit
120.130.5Below the limit
130.230.5Below the limit
140.220.5Below the limit
150.300.5Below the limit
160.350.5Below the limit
170.000.5Below the limit
180.000.5Below the limit
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

Earlier years

20250 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
110.000.5Below the limit
120.000.5Below the limit
130.020.5Below the limit
140.000.5Below the limit
150.000.5Below the limit
160.000.5Below the limit
170.020.5Below the limit
180.010.5Below the limit
190.020.5Below the limit
200.020.5Below the limit
210.040.2Below the limit
220.020.2Below the limit
230.070.2Below the limit
240.050.2Below the limit
250.180.2Near the limit
260.050.2Below the limit
270.040.5Below the limit
280.060.5Below the limit
290.100.5Below the limit
300.050.5Below the limit
310.190.5Below the limit
320.260.5Below the limit
330.350.5Below the limit
340.060.5Below the limit
350.260.5Below the limit
360.310.5Below the limit
370.110.5Below the limit
380.320.5Below the limit
390.430.5Near the limit
400.100.5Below the limit
410.120.5Below the limit
420.260.5Below the limit
430.100.5Below the limit
440.130.5Below the limit
450.210.5Below the limit
460.240.5Below the limit
470.370.5Below the limit
480.330.5Below the limit
490.080.5Below the limit
500.090.5Below the limit
510.190.5Below the limit
520.150.5Below the limit
20241 of 36 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
10.120.5Below the limit
20.090.5Below the limit
30.160.5Below the limit
40.180.5Below the limit
50.080.5Below the limit
60.140.5Below the limit
70.150.5Below the limit
80.150.5Below the limit
90.160.5Below the limit
100.200.5Below the limit
110.140.5Below the limit
120.250.5Below the limit
130.190.5Below the limit
140.230.5Below the limit
150.250.5Below the limit
160.240.5Below the limit
170.240.5Below the limit
180.250.5Below the limit
190.200.5Below the limit
200.200.5Below the limit
210.060.2Below the limit
220.040.2Below the limit
230.040.2Below the limit
240.020.2Below the limit
250.170.2Near the limit
260.100.2Below the limit
270.170.5Below the limit
280.180.5Below the limit
290.180.5Below the limit
300.490.5Near the limit
310.280.5Below the limit
322.990.5Above the limit
330.490.5Near the limit
34unknown0.5Reported without a count
35unknown0.5Reported without a count
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
500.000.5Below 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
400.070.5Below the limit
410.100.5Below the limit
420.090.5Below the limit
430.110.5Below the limit
440.010.5Below the limit
450.010.5Below the limit
460.000.5Below the limit
470.010.5Below the limit
480.020.5Below the limit
490.010.5Below the limit
500.030.5Below the limit
510.070.5Below the limit
520.030.5Below the limit

Treatments

Norwegian Food Safety Authority
  • Week 3, 2026
    Medicinal bath4 pens · Azamethiphos
  • Week 50, 2025
    Other treatment3 pens · Hydrolicer
  • Week 49, 2025
    Other treatment7 pens · Hydrolicer
  • Week 48, 2025
    Other treatment2 pens · Hydrolicer
Show all 20
  • Week 46, 2025
    Other treatment1 pen · Thermolicer
  • Week 43, 2025
    Other treatment10 pens · Hydrolicer
  • Week 42, 2025
    Other treatment2 pens · Hydrolicer
  • Week 40, 2025
    Other treatment10 pens · FLS
  • Week 39, 2025
    Other treatment2 pens · FLS
  • Week 37, 2025
    Other treatment4 pens · Hydrolicer · Thermolicer
  • Week 36, 2025
    Other treatment8 pens · Thermolicer
  • Week 33, 2025
    Other treatmentWhole site · FLS
  • Week 30, 2025
    Other treatmentWhole site · Thermolicer
  • Week 26, 2025
    Other treatmentWhole site · Thermolicer
  • Week 32, 2024
    Other treatmentWhole site · FLS
  • Week 30, 2024
    Other treatment4 pens · FLS
  • Week 27, 2024
    Other treatment1 pen · Hydrolicer
  • Week 26, 2024
    Other treatment8 pens · Hydrolicer
  • Week 21, 2024
    Other treatment9 pens · Hydrolicer
  • Week 44, 2023
    Other treatmentWhole site · 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

No escapes reported from this site since 2006.

Wellboat visits

38 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
05 May 2026OddoeyStokkasjøen1 h 48 min
30 Apr 2026Inter FjordNaustholmen1 h 50 min
27 Apr 2026Inter FjordNaustholmen1 h 34 min
26 Apr 2026Inter FjordSkauholmen1 h 57 min
15 Apr 2026OddoeyIgerøy Ø5 h 31 min
06 Apr 2026Inter FjordNaustholmen1 h 59 min
21 Mar 2026Oddoeyno other farm4 h 39 min
27 Feb 2026FaeroeysundNaustholmen2 h 48 min
26 Feb 2026FaeroeysundNaustholmen1 h 8 min
25 Feb 2026FaeroeysundNaustholmen5 h 0 min
24 Feb 2026FaeroeysundHestøy2 h 7 min
18 Feb 2026Inter FjordSkauholmen1 h 56 min
Show 84 older visits
ArrivalVesselPrevious farm (14 days)Duration
17 Feb 2026FaeroeysundYstøya1 h 0 min
16 Feb 2026Inter FjordNaustholmen1 h 30 min
15 Feb 2026Inter FjordNaustholmen1 h 12 min
14 Feb 2026Inter FjordSkauholmen1 h 53 min
11 Feb 2026Inter FjordNaustholmen1 h 49 min
10 Feb 2026Inter FjordNaustholmen2 h 53 min
08 Feb 2026OddoeyStokkasjøen7 h 58 min
08 Feb 2026Inter FjordSkauholmen2 h 8 min
07 Feb 2026Inter FjordSkauholmen2 h 22 min
03 Feb 2026Inter FjordSkauholmen2 h 29 min
31 Jan 2026Inter FjordNaustholmen2 h 14 min
23 Jan 2026Steinar OlaisenBrennholmen1 h 40 min
23 Jan 2026Inter FjordNaustholmen1 h 5 min
19 Jan 2026FaeroeysundNaustholmen2 h 18 min
18 Jan 2026FaeroeysundNaustholmen3 h 43 min
18 Jan 2026FaeroeysundNaustholmen2 h 18 min
18 Jan 2026FaeroeysundNaustholmen1 h 48 min
17 Jan 2026FaeroeysundNaustholmen2 h 41 min
17 Jan 2026FaeroeysundNaustholmen5 h 33 min
16 Jan 2026FaeroeysundNaustholmen2 h 52 min
16 Jan 2026OddoeyStokkasjøen3 h 28 min
15 Jan 2026OddoeySkonseng3 h 47 min
15 Jan 2026Inter FjordNaustholmen1 h 11 min
15 Jan 2026FaeroeysundNaustholmen1 h 57 min
11 Jan 2026Inter FjordSkauholmen1 h 22 min
31 Dec 2025FaeroeysundSkauholmen2 h 6 min
15 Dec 2025Inter FjordNaustholmen1 h 5 min
15 Dec 2025Steinar OlaisenSkauholmen1 h 51 min
11 Dec 2025TonnyStorskogøya45 min
04 Dec 2025OddoeyKokvika1 h 54 min
21 Nov 2025OddoeyStokkasjøen2 h 43 min
20 Nov 2025OddoeyStokkasjøen15 h 26 min
22 Sep 2025OddoeyVarpet29 h 54 min
10 Sep 2025TonnySkålsvika55 min
15 Aug 2025Steinar OlaisenKokvika2 h 51 min
14 Aug 2025Steinar OlaisenKokvika33 h 33 min
20 Jul 2025OddoeySkogsholmen1 h 21 min
05 Jul 2025OddoeyIgerøy Ø26 h 59 min
22 May 2025OddoeyIgerøy Ø20 h 6 min
03 May 2025OddoeyIgerøy Ø21 h 48 min
04 Apr 2025OddoeySkonseng24 h 5 min
07 Feb 2025OddoeyIgerøy Ø5 h 21 min
19 Dec 2024FaeroeysundSkonseng4 h 3 min
19 Dec 2024FaeroeysundSkonseng38 min
17 Dec 2024FaeroeysundSkonseng1 h 2 min
15 Dec 2024FaeroeysundSkonseng3 h 48 min
13 Dec 2024OddoeyVardskjæret S2 h 59 min
28 Aug 2024Steinar OlaisenNaustholmen7 h 57 min
27 Aug 2024Ro MasterNaustholmen1 h 13 min
22 Aug 2024Steinar OlaisenNye Skorpa disease or zone there1 h 38 min
21 Aug 2024Ro MasterNaustholmen7 h 23 min
21 Aug 2024Ro MasterNaustholmen1 h 12 min
20 Aug 2024Steinar OlaisenNye Skorpa disease or zone there3 h 10 min
20 Aug 2024Steinar OlaisenNye Skorpa disease or zone there1 h 58 min
19 Aug 2024Ro MasterNye Skorpa disease or zone there2 h 30 min
18 Aug 2024Steinar OlaisenNye Skorpa disease or zone there4 h 8 min
15 Aug 2024Steinar OlaisenNye Skorpa disease or zone there6 h 45 min
14 Aug 2024Ro MasterNaustholmen6 h 20 min
12 Aug 2024Ro MasterNaustholmen7 h 16 min
11 Aug 2024Steinar OlaisenBrattholmen disease or zone there1 h 54 min
10 Aug 2024Steinar OlaisenBrattholmen disease or zone there12 h 43 min
09 Aug 2024OddoeySundsøy38 h 53 min
09 Aug 2024Steinar OlaisenBrattholmen disease or zone there5 h 26 min
09 Aug 2024Steinar OlaisenBrattholmen disease or zone there37 min
08 Aug 2024Ro MasterNaustholmen5 h 30 min
07 Aug 2024Steinar OlaisenBrattholmen disease or zone there6 h 2 min
06 Aug 2024Ro MasterNaustholmen6 h 19 min
05 Aug 2024Steinar OlaisenBrattholmen disease or zone there7 h 4 min
04 Aug 2024Ro MasterNaustholmen7 h 20 min
26 Jul 2024Steinar OlaisenSkonseng disease or zone there25 h 30 min
12 Jun 2024Steinar OlaisenNaustholmen6 h 23 min
07 Jun 2024Steinar OlaisenNaustholmen1 h 22 min
06 Jun 2024Steinar OlaisenNaustholmen7 h 39 min
04 Jun 2024Steinar OlaisenNaustholmen7 h 3 min
02 Jun 2024Steinar OlaisenNaustholmen6 h 52 min
30 May 2024Steinar OlaisenNaustholmen6 h 34 min
28 May 2024Steinar OlaisenNaustholmen6 h 41 min
26 May 2024Steinar OlaisenSkonseng disease or zone there6 h 51 min
06 May 2024OddoeyStokkasjøen disease or zone there8 h 31 min
05 May 2024OddoeyStokkasjøen disease or zone there2 h 44 min
27 Mar 2024OddoeyStokkasjøen disease or zone there17 h 14 min
26 Mar 2024OddoeyStokkasjøen disease or zone there10 h 24 min
12 Jan 2024OddoeySkonseng disease or zone there23 h 14 min
06 Jan 2024TonnyStokkasjøen disease or zone there32 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
Nova Sea Havbruk ASWeek 40, 2023Week 18, 2026
Lax Expo ASWeek 6, 2026Week 8, 2026

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

Licences

Site MAB: 4,680 tonnes
LicenceTypeCapacityHolder
N G 0066Kommersiell / matfiskSalmon, Rainbow trout, Trout375 tHelgeland Laks AS
N G 0067Kommersiell / matfiskSalmon, Rainbow trout, Trout375 tHelgeland Laks AS
N L 0062Visning / matfiskSalmon, Rainbow trout, Trout780 tLax Expo AS
N LF 0029Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tNova Sea Havbruk AS
N LF 0030Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tNova Sea Havbruk AS
N ME 0005Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tNova Sea Havbruk AS
N ME 0028Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tNova Sea Havbruk AS
N VA 0001Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tNova Sea Havbruk AS
N VS 0001Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tNova Sea Havbruk AS
N VS 0002Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tNova Sea Havbruk AS
N VS 0005Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tNova Sea Havbruk AS

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