Skip to content

Vadholmen

Site 35517 · Øygarden municipality · Production area 4, Nordhordland til Stadt

Status unknown: not reported in week 39Operated by Erko Seafood AS · group unknown
unknownAdult female lice per fishNo count in week 39. Latest: 0.12 in week 17, 2026Week 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026
1Weeks above the limit in 2026of 17 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026
2Lice treatments in 2026Latest: Freshwater treatment, week 7, 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
52Wellboat visits in 2026by 5 different vessels · latest 29 Jun 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
10.220.5Below the limit
20.320.5Below the limit
30.260.5Below the limit
40.280.5Below the limit
50.480.5Near the limit
60.980.5Above the limit
70.000.5Below the limit
80.040.5Below the limit
90.040.5Below the limit
100.020.5Below the limit
110.040.5Below the limit
120.020.5Below the limit
130.000.5Below the limit
140.040.5Below the limit
150.080.5Below the limit
160.160.2Below the limit
170.120.2Below the limit
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
36unknown0.5Not reported
37unknown0.5Not reported
38unknown0.5Not reported
39unknown0.5Not reported

Earlier years

20254 of 40 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
2unknown0.5Not reported
3unknown0.5Not reported
4unknown0.5Not reported
5unknown0.5Not reported
6unknown0.5Not reported
7unknown0.5Not reported
8unknown0.5Not reported
9unknown0.5Not reported
10unknown0.5Not reported
11unknown0.5Not reported
120.000.5Below the limit
130.000.5Below the limit
140.000.5Below the limit
150.000.5Below the limit
160.000.2Below the limit
170.000.2Below the limit
180.000.2Below the limit
190.040.2Below the limit
200.040.2Below the limit
210.060.2Below the limit
220.010.5Below the limit
230.020.5Below the limit
240.040.5Below the limit
250.180.5Below the limit
260.320.5Below the limit
270.420.5Near the limit
280.000.5Below the limit
290.060.5Below the limit
300.040.5Below the limit
310.020.5Below the limit
320.270.5Below the limit
330.830.5Above the limit
341.510.5Above the limit
350.150.5Below the limit
360.230.5Below the limit
370.150.5Below the limit
380.280.5Below the limit
390.170.5Below the limit
400.350.5Below the limit
410.100.5Below the limit
420.220.5Below the limit
430.780.5Above the limit
440.050.5Below the limit
450.220.5Below the limit
460.130.5Below the limit
470.180.5Below the limit
480.300.5Below the limit
49unknown0.5Not reported
502.830.5Above the limit
510.380.5Below the limit
520.100.5Below the limit
20242 of 51 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
10.000.5Below 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
90.020.5Below the limit
100.050.5Below the limit
110.100.5Below the limit
120.150.5Below the limit
130.230.5Below the limit
140.030.5Below the limit
150.030.5Below the limit
160.030.2Below the limit
170.040.2Below the limit
180.030.2Below the limit
190.040.2Below the limit
200.050.2Below the limit
210.070.2Below the limit
220.140.5Below the limit
230.260.5Below the limit
240.280.5Below the limit
250.040.5Below the limit
260.010.5Below the limit
270.030.5Below the limit
280.130.5Below the limit
290.470.5Near the limit
300.450.5Near the limit
310.180.5Below the limit
320.090.5Below the limit
330.300.5Below the limit
340.450.5Near the limit
350.520.5Above the limit
360.210.5Below the limit
370.260.5Below the limit
380.430.5Near the limit
390.190.5Below the limit
400.480.5Near the limit
410.340.5Below the limit
420.440.5Near the limit
430.810.5Above the limit
440.410.5Near the limit
450.320.5Below the limit
460.360.5Below the limit
470.280.5Below the limit
480.290.5Below the limit
490.360.5Below the limit
500.480.5Near the limit
510.440.5Near the limit
52unknown0.5Not reported

Treatments

Norwegian Food Safety Authority
  • Week 7, 2026
    Thermal delousing, Freshwater treatmentWhole site
  • Week 51, 2025
    Thermal delousing6 pens
  • Week 44, 2025
    Thermal delousingWhole site
  • Week 39, 2025
    Thermal delousing5 pens
Show all 18
  • Week 35, 2025
    Thermal delousing5 pens
  • Week 28, 2025
    Thermal delousingWhole site
  • Week 21, 2025
    Thermal delousing2 pens
  • Week 46, 2024
    Thermal delousing1 pen
  • Week 44, 2024
    Thermal delousing2 pens
  • Week 41, 2024
    Thermal delousing2 pens
  • Week 39, 2024
    Thermal delousing3 pens
  • Week 36, 2024
    Thermal delousing3 pens
  • Week 35, 2024
    Thermal delousing1 pen
  • Week 34, 2024
    Thermal delousing2 pens
  • Week 31, 2024
    Thermal delousing4 pens
  • Week 30, 2024
    Thermal delousing2 pens
  • Week 25, 2024
    Thermal delousing4 pens
  • Week 14, 2024
    Thermal delousingWhole site

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

52 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
29 Jun 2026HauglaksHillersvik1 h 33 min
22 Jun 2026HauglaksRotøy4 h 33 min
07 Jun 2026HauglaksSkaganeset5 h 45 min
03 Jun 2026LangsundAlida3 h 5 min
02 Jun 2026HauglaksKnappen1 h 20 min
01 Jun 2026HauglaksKnappen7 h 34 min
27 May 2026RosteinInstefjord1 h 21 min
26 May 2026HauglaksPortevika7 h 28 min
19 May 2026HauglaksPortevika5 h 26 min
18 May 2026HauglaksPortevika1 h 12 min
11 May 2026HauglaksSkaganeset6 h 22 min
07 May 2026HauglaksSkaganeset7 h 16 min
Show 104 older visits
ArrivalVesselPrevious farm (14 days)Duration
01 May 2026HauglaksNesevågen7 h 51 min
01 May 2026HauglaksNesevågen7 h 35 min
30 Apr 2026HauglaksNesevågen17 h 41 min
29 Apr 2026HauglaksNesevågen1 h 1 min
28 Apr 2026HauglaksNesevågen1 h 56 min
27 Apr 2026HauglaksSkaganeset8 h 35 min
24 Apr 2026HauglaksNesevågen4 h 18 min
23 Apr 2026HauglaksNesevågen18 h 58 min
22 Apr 2026HauglaksNesevågen4 h 13 min
20 Apr 2026HauglaksRotøy6 h 15 min
16 Apr 2026HauglaksSkaganeset21 h 53 min
15 Apr 2026HauglaksSkaganeset1 h 12 min
14 Apr 2026HauglaksSkaganeset17 h 19 min
07 Apr 2026HauglaksSkaganeset27 h 18 min
06 Apr 2026HauglaksSkaganeset10 h 47 min
05 Apr 2026HauglaksSkaganeset8 h 44 min
04 Apr 2026HauglaksSkaganeset6 h 45 min
01 Apr 2026HauglaksSkaganeset22 h 59 min
30 Mar 2026HauglaksSkaganeset5 h 11 min
26 Mar 2026HauglaksSkaganeset54 h 22 min
25 Mar 2026HauglaksSkaganeset3 h 50 min
24 Mar 2026HauglaksSkaganeset11 h 54 min
22 Mar 2026HauglaksSkaganeset14 h 12 min
20 Mar 2026HauglaksSkaganeset33 h 42 min
19 Mar 2026RobasPorsvika7 h 19 min
18 Mar 2026Hauglaksno other farm28 h 19 min
15 Mar 2026Hauglaksno other farm10 h 4 min
14 Mar 2026Hauglaksno other farm7 h 21 min
14 Mar 2026Hauglaksno other farm7 h 29 min
13 Mar 2026Hauglaksno other farm6 h 36 min
09 Mar 2026HauglaksSkaganeset6 h 39 min
08 Mar 2026HauglaksSkaganeset6 h 46 min
08 Mar 2026HauglaksSkaganeset9 h 12 min
07 Mar 2026HauglaksSkaganeset19 h 56 min
15 Feb 2026Horda PioneerBergadalen10 h 35 min
14 Feb 2026Horda PioneerBergadalen10 h 34 min
12 Feb 2026Horda PioneerBergadalen37 h 3 min
08 Jan 2026HauglaksPorsvika37 min
02 Jan 2026HauglaksSkaganeset4 h 14 min
30 Dec 2025HauglaksSkaganeset5 h 7 min
22 Dec 2025HauglaksPorsvika9 h 21 min
21 Dec 2025HauglaksPorsvika20 h 36 min
20 Dec 2025HauglaksPorsvika1 h 23 min
20 Dec 2025LangsundRotøy2 h 11 min
16 Dec 2025HordagutKalsøyflu disease or zone there9 h 39 min
15 Dec 2025HordagutKalsøyflu disease or zone there11 h 52 min
11 Dec 2025RosteinBjønnspjotneset2 h 7 min
01 Dec 2025RosteinRevøy1 h 30 min
30 Nov 2025RosteinRevøy2 h 0 min
29 Oct 2025HordagutTveit1 h 2 min
29 Oct 2025Horda PioneerRotøy3 h 48 min
29 Oct 2025Horda PioneerRotøy5 h 23 min
29 Oct 2025HordagutTveit11 h 43 min
29 Oct 2025HauglaksRotøy17 h 57 min
28 Oct 2025Horda PioneerRotøy11 h 46 min
25 Sep 2025HordagutSagen 28 h 53 min
24 Sep 2025HordagutSagen 220 h 46 min
23 Sep 2025HordagutSagen 28 h 45 min
22 Sep 2025HordagutSagen 28 h 41 min
28 Aug 2025HauglaksSkreda disease or zone there7 h 33 min
27 Aug 2025HordagutSagen 27 h 54 min
26 Aug 2025HordagutSagen 216 h 13 min
30 Jul 2025Seifjellno other farm1 h 21 min
10 Jul 2025HordagutUføro disease or zone there13 h 36 min
09 Jul 2025HordagutUføro disease or zone there7 h 59 min
24 May 2025Horda PioneerØklandsvågen7 h 6 min
21 Apr 2025SeifjellRotøy31 min
28 Dec 2024HauglaksGangdal10 h 40 min
21 Dec 2024RobasGråtnes1 h 25 min
17 Dec 2024RosteinHesteneset53 min
07 Dec 2024HauglaksSkaganeset3 h 24 min
07 Dec 2024Norwegian GannetHundaneset4 h 22 min
03 Dec 2024Norwegian GannetHundaneset4 h 26 min
27 Nov 2024Norwegian GannetHundaneset4 h 15 min
19 Nov 2024Norwegian GannetAuenes6 h 15 min
15 Nov 2024HauglaksStraumneset6 h 42 min
14 Nov 2024HauglaksStraumneset17 h 22 min
05 Nov 2024Norwegian GannetRennaren6 h 13 min
04 Nov 2024HauglaksKysnes7 h 43 min
02 Nov 2024HauglaksKysnes31 h 48 min
23 Oct 2024Norwegian GannetKjelneset6 h 49 min
13 Oct 2024Horda PioneerPorsvika2 h 39 min
13 Oct 2024HordagutLeirvika4 h 32 min
13 Oct 2024Horda PioneerPorsvika3 h 50 min
13 Oct 2024HordagutLeirvika2 h 52 min
13 Oct 2024HauglaksRotøy12 h 43 min
12 Oct 2024HordagutLeirvika2 h 39 min
12 Oct 2024Horda PioneerPorsvika1 h 40 min
12 Oct 2024HordagutLeirvika1 h 55 min
11 Oct 2024HauglaksRotøy24 h 32 min
25 Sep 2024HauglaksRotøy7 h 39 min
24 Sep 2024HauglaksRotøy10 h 4 min
23 Sep 2024HauglaksRotøy10 h 22 min
05 Sep 2024Horda PioneerSagen 214 h 56 min
04 Sep 2024Horda PioneerSagen 216 h 38 min
03 Sep 2024Horda PioneerSagen 210 h 6 min
03 Aug 2024HauglaksKlubben11 h 17 min
02 Aug 2024HordagutSyrtangen15 h 12 min
20 Jun 2024HordagutBrattavika7 h 6 min
19 Jun 2024HordagutBrattavika5 h 36 min
19 Jun 2024HordagutBrattavika3 h 24 min
18 Jun 2024HordagutBrattavika13 h 33 min
06 Apr 2024Horda PioneerSaltkjelen I15 h 17 min
05 Apr 2024Horda PioneerSaltkjelen I10 h 8 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
Erko Seafood ASWeek 1, 2024Week 17, 2026
Blom Fiskeoppdrett ASWeek 20, 2025Week 41, 2025

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

Licences

Site MAB: 4,680 tonnes
LicenceTypeCapacityHolder
H MF 0019Kommersiell / matfiskSalmon, Rainbow trout, Trout648 tErko Seafood AS
H ØN 0001Kommersiell / matfiskSalmon, Rainbow trout, Trout648 tBlom Fiskeoppdrett AS
H ØN 0004Kommersiell / matfiskSalmon, Rainbow trout, Trout648 tBlom Fiskeoppdrett AS
H ØN 0020Kommersiell / matfiskSalmon, Rainbow trout, Trout648 tErko Seafood AS
H ØN 0039Kommersiell / matfiskSalmon, Rainbow trout, Trout648 tErko Seafood AS
SF FL 0006Kommersiell / matfiskSalmon, Rainbow trout, Trout648 tErko Seafood AS
SF H 0008Kommersiell / matfiskSalmon, Rainbow trout, Trout648 tErko Seafood AS
SF SU 0023Kommersiell / matfiskSalmon, Rainbow trout, Trout648 tErko Seafood AS

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