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The Salmon Ledger
NOEN

Knappen

Site 11763 · Øygarden municipality · Production area 4, Nordhordland til Stadt

Status unknown: not reported in week 39Operated by Erko Seafood AS · group unknown
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unknownAdult female lice per fishNo count in week 39. Latest: 0.94 in week 31, 2024Week 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026
unknownWeeks above the limit in 2026No weeks with a count in 2026Calculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026
unknownLice treatments in 2026No lice reports in 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
1Wellboat visits in 2026by 1 vessel · latest 31 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 16–21 and 0.5 for the rest of the year. Hatched weeks have no count and count neither as above nor below.

2024

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
10.430.5Near the limit
20.470.5Near the limit
30.000.5Below the limit
40.000.5Below the limit
50.070.5Below the limit
60.030.5Below the limit
70.020.5Below the limit
80.010.5Below the limit
90.040.5Below the limit
100.040.5Below the limit
110.030.5Below the limit
120.040.5Below the limit
130.070.5Below the limit
140.140.5Below the limit
150.170.5Below the limit
160.010.2Below the limit
170.010.2Below the limit
180.010.2Below the limit
190.010.2Below the limit
200.010.2Below the limit
210.020.2Below the limit
220.080.5Below the limit
230.160.5Below the limit
240.210.5Below the limit
250.340.5Below the limit
260.490.5Near the limit
270.340.5Below the limit
280.420.5Near the limit
290.110.5Below the limit
300.280.5Below the limit
310.940.5Above the limit
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
52unknown0.5Not reported

Earlier years

20232 of 11 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
40unknown0.5Not reported
41unknown0.5Not reported
421.100.5Above the limit
430.000.5Below the limit
440.330.5Below the limit
450.170.5Below the limit
460.800.5Above the limit
470.130.5Below the limit
480.170.5Below the limit
490.130.5Below the limit
500.370.5Below the limit
510.370.5Below the limit
520.270.5Below the limit

Treatments

Norwegian Food Safety Authority
  • Week 16, 2024
    Thermal delousingWhole site
  • Week 3, 2024
    Thermal delousingWhole site
  • Week 47, 2023
    Thermal delousingWhole site
  • Week 43, 2023
    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

1 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
31 May 2026HauglaksPortevika2 h 4 min
02 Sep 2025HauglaksSkaganeset5 h 7 min
30 Aug 2025HauglaksVadholmen16 h 10 min
29 Aug 2025HauglaksVadholmen12 h 21 min
18 Aug 2024Norwegian GannetKlammerholmen disease or zone there5 h 10 min
11 Aug 2024Norwegian GannetBrunsvik9 h 50 min
03 Aug 2024Norwegian Gannetno other farm15 h 11 min
28 Jul 2024Norwegian GannetVerpeide7 h 7 min
22 Jul 2024Norwegian GannetVerpeide11 h 50 min
15 Jul 2024Norwegian GannetKveitskjeret disease or zone there5 h 9 min
06 Jul 2024Norwegian GannetMannbruholmen disease or zone there9 h 9 min
05 Jul 2024Horda PioneerRekeviki41 h 34 min
Show 6 older visits
ArrivalVesselPrevious farm (14 days)Duration
17 Apr 2024Horda PioneerKlubben7 h 21 min
16 Apr 2024Horda PioneerKlubben17 h 34 min
15 Apr 2024Horda PioneerKlubben10 h 45 min
19 Jan 2024Horda PioneerDysvik11 h 24 min
19 Jan 2024Horda PioneerDysvik2 h 38 min
18 Jan 2024Horda PioneerDysvik17 h 21 min

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

Licences

Site MAB: 2,340 tonnes
LicenceTypeCapacityHolder
H FJ 0022Kommersiell / matfiskSalmon, Rainbow trout, Trout648 tKobbevik Og Furuholmen Oppdrett AS
H ØN 0001Kommersiell / matfiskSalmon, Rainbow trout, Trout648 tBlom Fiskeoppdrett AS
H ØN 0004Kommersiell / matfiskSalmon, Rainbow trout, Trout648 tBlom Fiskeoppdrett AS
H ØN 0007Kommersiell / matfiskSalmon, Rainbow trout, Trout648 tErko Seafood AS
H ØN 0020Kommersiell / matfiskSalmon, Rainbow trout, Trout648 tErko Seafood AS
H ØN 0039Kommersiell / matfiskSalmon, Rainbow trout, Trout648 tErko Seafood AS

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