Skip to content
The Salmon Ledger
NOEN

Kattholmen

Site 14042 · Frøya municipality · Production area 6, Nordmøre og Sør-Trøndelag

Status unknown: not reported in week 39Operated by Salmar Oppdrett AS · group SalMar
Follow this farmDownload CSV
unknownAdult female lice per fishNo count in week 39. Latest: 0.45 in week 28, 2026Week 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026
0Weeks above the limit in 2026of 28 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026
3Lice treatments in 2026Latest: Mechanical delousing, week 23, 20262026 · Norwegian Food Safety Authority · updated 01 Oct 2026
1Active disease casesPD, confirmed 20 Feb 2026Register since 26 Nov 2024 · Norwegian Food Safety Authority · updated 01 Oct 2026
11Wellboat visits in 2026by 3 different vessels · latest 19 Jul 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
10.060.5Below the limit
20.020.5Below the limit
30.040.5Below the limit
40.000.5Below the limit
50.050.5Below the limit
60.060.5Below the limit
70.070.5Below the limit
80.100.5Below the limit
90.170.5Below the limit
100.110.5Below the limit
110.100.5Below the limit
120.160.5Below the limit
130.150.5Below the limit
140.130.5Below the limit
150.330.5Below the limit
160.050.2Below the limit
170.080.2Below the limit
180.060.2Below the limit
190.050.2Below the limit
200.100.2Below the limit
210.120.2Below the limit
220.190.5Below the limit
230.070.5Below the limit
240.050.5Below the limit
250.120.5Below the limit
260.150.5Below the limit
270.230.5Below the limit
280.450.5Near the limit
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

20255 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, 2025
WeekAdult female lice per fishLice limitStatus
1unknown0.5Not reported
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
130.000.5Below the limit
140.000.5Below the limit
150.030.5Below the limit
160.020.2Below the limit
170.030.2Below the limit
180.000.2Below the limit
190.020.2Below the limit
200.030.2Below the limit
210.040.2Below the limit
220.040.5Below the limit
230.040.5Below the limit
240.060.5Below the limit
250.090.5Below the limit
260.040.5Below the limit
270.090.5Below the limit
280.260.5Below the limit
290.160.5Below the limit
300.090.5Below the limit
310.080.5Below the limit
320.190.5Below the limit
330.490.5Near the limit
340.130.5Below the limit
350.200.5Below the limit
360.370.5Below the limit
370.100.5Below the limit
380.190.5Below the limit
390.290.5Below the limit
401.510.5Above the limit
413.200.5Above the limit
423.670.5Above the limit
432.540.5Above the limit
441.150.5Above the limit
450.130.5Below the limit
460.260.5Below the limit
470.340.5Below the limit
480.390.5Below the limit
490.380.5Below the limit
500.180.5Below the limit
510.050.5Below the limit
520.030.5Below the limit
20240 of 24 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
10.260.5Below the limit
20.360.5Below the limit
30.340.5Below the limit
40.260.5Below the limit
50.160.5Below the limit
60.360.5Below the limit
70.340.5Below the limit
80.090.5Below the limit
90.110.5Below the limit
100.110.5Below the limit
110.110.5Below the limit
120.140.5Below the limit
130.150.5Below the limit
140.110.5Below the limit
150.150.5Below the limit
160.100.2Below the limit
170.140.2Below the limit
180.170.2Near the limit
190.150.2Below the limit
200.130.2Below the limit
210.150.2Below the limit
220.320.5Below the limit
230.390.5Below the limit
240.430.5Near the limit
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
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
20231 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
400.440.5Near the limit
410.560.5Above the limit
420.430.5Near the limit
430.310.5Below the limit
440.380.5Below the limit
450.300.5Below the limit
460.380.5Below the limit
470.450.5Near the limit
480.380.5Below the limit
490.080.5Below the limit
500.090.5Below the limit
510.130.5Below the limit
520.110.5Below the limit

Treatments

Norwegian Food Safety Authority
  • Week 23, 2026
    Mechanical delousing3 pens
  • Week 15, 2026
    Medicinal bathAzamethiphos
  • Week 10, 2026
    Mechanical delousing5 pens
  • Week 51, 2025
    Other treatment4 pens · Ferskvann/Thermolicer
Show all 29
  • Week 49, 2025
    Mechanical delousing4 pens
  • Week 45, 2025
    Mechanical delousing4 pens
  • Week 44, 2025
    Mechanical delousing4 pens
  • Week 43, 2025
    Mechanical delousing3 pens
  • Week 42, 2025
    Mechanical delousing1 pen
  • Week 41, 2025
    Mechanical delousing1 pen
  • Week 40, 2025
    Mechanical delousing1 pen
  • Week 37, 2025
    Mechanical delousing7 pens
  • Week 36, 2025
    Mechanical delousing3 pens
  • Week 35, 2025
    Mechanical delousing4 pens
  • Week 34, 2025
    Mechanical delousing4 pens
  • Week 33, 2025
    Mechanical delousing3 pens
  • Week 29, 2025
    Mechanical delousing7 pens
  • Week 8, 2024
    Other treatment4 pens · Ferskvann/ Hydrolicer
  • Week 7, 2024
    Other treatment2 pens · Ferskvann/ Hydrolicer
  • Week 4, 2024
    Medicinal bath2 pens · Azamethiphos
  • Week 3, 2024
    Medicinal bath5 pens · Azamethiphos
  • Week 49, 2023
    Other treatment2 pens · Ferskvann/Thermolicer
  • Week 48, 2023
    Other treatment3 pens · Ferskvann/Thermolicer
  • Week 47, 2023
    Other treatment3 pens · Ferskvann/Thermolicer
  • Week 45, 2023
    Other treatment2 pens · Hydrolicer
  • Week 44, 2023
    Other treatment1 pen · Hydrolicer
  • Week 43, 2023
    Other treatment4 pens · Hydrolicer
  • Week 42, 2023
    Other treatment5 pens · Hydrolicer
  • Week 41, 2023
    Other treatment2 pens · Hydrolicer

Disease

Norwegian Food Safety Authority

Escapes

Directorate of Fisheries

No escapes reported from this site since 2006.

Wellboat visits

11 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
19 Jul 2026Froy OdinNordskag1 h 37 min
19 Jul 2026Froy OdinNordskag1 h 16 min
30 May 2026Ronja PrincessNordskag3 h 42 min
12 Apr 2026Froy OdinDryna4 h 27 min
12 Apr 2026Froy OdinDryna2 h 52 min
11 Apr 2026Froy OdinDryna3 h 45 min
09 Apr 2026Froy OdinDryna1 h 33 min
08 Apr 2026Froy OdinDryna1 h 26 min
07 Mar 2026Ro VisionÅrnes6 h 58 min
07 Mar 2026Ro VisionÅrnes2 h 34 min
07 Mar 2026Ro VisionÅrnes2 h 43 min
22 Dec 2025Ro VisionKattholmen II1 h 51 min
Show 46 older visits
ArrivalVesselPrevious farm (14 days)Duration
21 Dec 2025Ro VisionKattholmen II2 h 3 min
20 Dec 2025Ro VisionKattholmen II7 h 51 min
16 Dec 2025Ro VisionØrnøya2 h 14 min
03 Nov 2025Ronja PrincessNordskag2 h 58 min
27 Oct 2025Ro VisionKattholmen II9 h 15 min
26 Oct 2025Ro VisionKattholmen II7 h 13 min
26 Oct 2025AasvaerfjordNordskag3 h 36 min
26 Oct 2025Ro VisionSalatskjæra11 h 8 min
26 Oct 2025AasvaerfjordNordskag2 h 8 min
21 Oct 2025Ro VisionKattholmen II8 h 55 min
20 Oct 2025Ro VisionKattholmen II2 h 34 min
20 Oct 2025Ro VisionKattholmen II4 h 15 min
13 Sep 2025AasvaerfjordKattholmen II21 h 37 min
22 Jul 2025Ro VisionKattholmen II6 h 27 min
20 Jul 2025Ro VisionOlausskjæret14 h 1 min
19 Jul 2025Ro VisionOlausskjæret17 h 53 min
18 Jul 2025Ro VisionOlausskjæret12 h 56 min
29 Jan 2025Ronja VitaKattholmen II1 h 31 min
20 Jan 2025Ronja VitaKattholmen II3 h 16 min
20 Jun 2024Ronja PrincessNordskag1 h 59 min
13 Jun 2024Ronja PrincessNordskag1 h 56 min
12 Jun 2024Ronja PrincessNordskag2 h 13 min
16 May 2024Ronja PrincessNordskag2 h 26 min
14 May 2024Ronja PrincessNordskag3 h 4 min
18 Apr 2024Ro SenjaSalatskjæra1 h 45 min
22 Feb 2024Froy OdinKattholmen II2 h 13 min
21 Feb 2024Froy OdinKattholmen II11 h 15 min
21 Feb 2024Froy OdinKattholmen II1 h 54 min
20 Feb 2024Froy OdinKattholmen II6 h 50 min
19 Feb 2024Froy OdinSalatskjæra16 h 9 min
18 Feb 2024Froy OdinSalatskjæra2 h 38 min
18 Feb 2024Froy OdinSalatskjæra2 h 33 min
17 Feb 2024Froy OdinSalatskjæra2 h 57 min
17 Feb 2024Froy OdinSalatskjæra5 h 45 min
19 Jan 2024Ro VisionKattholmen II1 h 11 min
19 Jan 2024Ro VisionKattholmen II1 h 28 min
18 Jan 2024Ro VisionKattholmen II3 h 3 min
18 Jan 2024Ro VisionKattholmen II1 h 54 min
18 Jan 2024Ro VisionKattholmen II1 h 10 min
17 Jan 2024Ro VisionKattholmen II1 h 7 min
17 Jan 2024Ro VisionKattholmen II1 h 5 min
17 Jan 2024Ro VisionKattholmen II1 h 11 min
16 Jan 2024Ro VisionKattholmen II3 h 49 min
16 Jan 2024Ro VisionKattholmen II3 h 57 min
15 Jan 2024Ro VisionNordskag2 h 45 min
15 Jan 2024Ro VisionNordskag4 h 8 min

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

Licences

Site MAB: 7,800 tonnes
LicenceTypeCapacityHolder
ST AA 0007Kommersiell / matfisk-grønn konvertertSalmon, Rainbow trout, Trout788 tSalmar Oppdrett AS
ST AA 0017Kommersiell / matfisk-grønn konvertertSalmon, Rainbow trout, Trout788 tSalmar Oppdrett AS
ST AA 0033Kommersiell / matfisk-grønn bSalmon, Rainbow trout, Trout788 tSalmar Oppdrett AS
ST AA 0034Kommersiell / matfisk-grønn bSalmon, Rainbow trout, Trout788 tSalmar Oppdrett AS
ST F 0026Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tSalmar Oppdrett AS
ST F 0027Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tSalmar Oppdrett AS
ST F 0069Kommersiell / matfisk-grønn bSalmon, Rainbow trout, Trout788 tSalmar Oppdrett AS
ST F 0070Kommersiell / matfisk-grønn bSalmon, Rainbow trout, Trout788 tSalmar Oppdrett AS
ST R 0001Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tSalmar Oppdrett AS
ST R 0006Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tSalmar Oppdrett AS

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