Skip to content
The Salmon Ledger
NOEN

Store Teistholmen Ø

Site 11971 · Sandnes municipality · Production area 2, Ryfylke

Status unknown: not reported in week 39Operated by Grieg Seafood Farming AS · group Grieg Seafood
Follow this farmDownload CSV
unknownAdult female lice per fishNo count in week 39. Latest: 0.43 in week 31, 2026Week 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026
4Weeks above the limit in 2026of 31 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026
5Lice treatments in 2026Latest: Freshwater treatment, week 23, 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
25Wellboat visits in 2026by 1 vessel · latest 07 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
10.090.5Below the limit
20.230.5Below the limit
30.380.5Below the limit
40.490.5Near the limit
50.490.5Near the limit
60.480.5Near the limit
70.870.5Above the limit
80.470.5Near the limit
91.190.5Above the limit
100.080.5Below the limit
110.090.5Below the limit
120.080.5Below the limit
130.100.5Below the limit
140.110.5Below the limit
150.110.5Below the limit
160.110.2Below the limit
170.060.2Below the limit
180.110.2Below the limit
190.180.2Near the limit
200.190.2Near the limit
210.430.2Above the limit
220.590.5Above the limit
230.040.5Below the limit
240.130.5Below the limit
250.150.5Below the limit
260.260.5Below the limit
270.360.5Below the limit
280.410.5Near the limit
290.470.5Near the limit
300.450.5Near the limit
310.430.5Near the limit
32unknown0.5Reported without a count
33unknown0.5Reported without a count
34unknown0.5Not reported
35unknown0.5Not reported
36unknown0.5Not reported
37unknown0.5Not reported
38unknown0.5Not reported
39unknown0.5Not reported

Earlier years

20251 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, 2025
WeekAdult female lice per fishLice limitStatus
10.330.5Below the limit
20.380.5Below the limit
30.440.5Near the limit
40.330.5Below the limit
50.350.5Below the limit
60.430.5Near the limit
70.380.5Below the limit
80.340.5Below the limit
90.460.5Near the limit
100.460.5Near the limit
110.330.5Below the limit
120.450.5Near the limit
130.320.5Below the limit
140.430.5Near the limit
150.350.5Below the limit
160.200.2Above the limit
170.150.2Below 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
340.000.5Below the limit
350.000.5Below the limit
360.030.5Below the limit
370.110.5Below the limit
380.150.5Below the limit
390.280.5Below the limit
400.130.5Below the limit
410.110.5Below the limit
420.040.5Below the limit
430.140.5Below the limit
440.170.5Below the limit
450.160.5Below the limit
460.370.5Below the limit
470.470.5Near the limit
480.480.5Near the limit
490.420.5Near the limit
500.480.5Near the limit
510.090.5Below the limit
520.130.5Below the limit
20240 of 45 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
10.080.5Below the limit
20.110.5Below the limit
30.100.5Below the limit
40.020.5Below the limit
50.000.5Below the limit
60.050.5Below the limit
70.050.5Below the limit
8unknown0.5Reported without a count
9unknown0.5Reported without a count
10unknown0.5Not reported
11unknown0.5Not reported
12unknown0.5Not reported
13unknown0.5Not reported
14unknown0.5Reported without a count
150.000.5Below the limit
160.010.2Below the limit
170.000.2Below the limit
180.000.2Below the limit
190.000.2Below the limit
200.000.2Below the limit
210.050.2Below the limit
220.250.5Below the limit
230.320.5Below the limit
240.240.5Below the limit
250.250.5Below the limit
260.390.5Below the limit
270.370.5Below the limit
280.460.5Near the limit
290.470.5Near the limit
300.480.5Near the limit
310.460.5Near the limit
320.300.5Below the limit
330.150.5Below the limit
340.070.5Below the limit
350.010.5Below the limit
360.020.5Below the limit
370.010.5Below the limit
380.030.5Below the limit
390.010.5Below the limit
400.010.5Below the limit
410.010.5Below the limit
420.010.5Below the limit
430.020.5Below the limit
440.030.5Below the limit
450.010.5Below the limit
460.000.5Below the limit
470.030.5Below the limit
480.060.5Below the limit
490.040.5Below the limit
500.070.5Below the limit
510.110.5Below the limit
520.170.5Below 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
400.020.5Below the limit
410.010.5Below the limit
420.000.5Below the limit
430.030.5Below the limit
440.030.5Below the limit
450.060.5Below the limit
460.070.5Below the limit
470.110.5Below the limit
480.070.5Below the limit
490.030.5Below the limit
500.060.5Below the limit
510.060.5Below the limit
520.070.5Below the limit

Treatments

Norwegian Food Safety Authority
  • Week 23, 2026
    Freshwater treatment5 pens
  • Week 22, 2026
    Freshwater treatment2 pens
  • Week 10, 2026
    Medicinal bathAzamethiphos
  • Week 9, 2026
    Medicinal bathAzamethiphos
Show all 6
  • Week 8, 2026
    Medicinal bathAzamethiphos
  • Week 49, 2025
    Freshwater treatment3 pens

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

25 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
07 Jun 2026Ronja AzulHelgøy18 h 8 min
06 Jun 2026Ronja AzulHelgøy4 h 51 min
06 Jun 2026Ronja AzulHelgøy10 h 27 min
05 Jun 2026Ronja AzulHelgøy5 h 56 min
03 Jun 2026Ronja AzulHelgøy19 h 50 min
01 Jun 2026Ronja AzulHelgøy7 h 36 min
01 Jun 2026Ronja AzulHelgøy2 h 46 min
31 May 2026Ronja AzulHelgøy21 h 22 min
30 May 2026Ronja AzulHelgøy12 h 41 min
30 May 2026Ronja AzulHelgøy4 h 40 min
29 May 2026Ronja AzulHelgøy3 h 5 min
02 May 2026Ronja AzulPorsvika3 h 2 min
Show 59 older visits
ArrivalVesselPrevious farm (14 days)Duration
25 Apr 2026Ronja AzulGråtnes3 h 43 min
19 Mar 2026Ronja AzulHelgøy3 h 13 min
05 Mar 2026Ronja AzulHelgøy46 h 56 min
02 Mar 2026Ronja AzulHelgøy29 h 59 min
02 Mar 2026Ronja AzulHelgøy6 h 13 min
26 Feb 2026Ronja AzulTollaksholmen6 h 39 min
24 Feb 2026Ronja AzulHelgøy19 h 45 min
23 Feb 2026Ronja AzulHelgøy21 h 16 min
22 Feb 2026Ronja AzulHelgøy7 h 38 min
17 Feb 2026Ronja AzulHelgøy2 h 29 min
29 Jan 2026Ronja AzulHelgøy18 h 58 min
27 Jan 2026Ronja AzulHelgøy15 h 8 min
26 Jan 2026Ronja AzulHelgøy6 h 0 min
19 Dec 2025Ronja AzulLåderskjera39 h 30 min
16 Dec 2025Ronja AzulLåderskjera8 h 35 min
15 Dec 2025Ronja AzulLåderskjera12 h 0 min
14 Dec 2025Ronja AzulLåderskjera8 h 15 min
03 Dec 2025Ronja AzulHelgøy15 h 7 min
02 Dec 2025Ronja AzulHelgøy14 h 44 min
07 Sep 2025Ronja AzulKilaneset1 h 45 min
13 Aug 2025Ronja AzulKalhag39 min
13 Aug 2025Ronja AzulKalhag45 min
12 Aug 2025Ronja AzulKalhag1 h 33 min
11 Aug 2025Ronja AzulKalhag2 h 8 min
10 Aug 2025Ronja AzulKalhag2 h 17 min
04 May 2025Ronja AzulHelgøy3 h 20 min
30 Apr 2025Ronja AzulHelgøy5 h 3 min
21 Apr 2025Ronja AzulDyrholmen3 h 0 min
17 Mar 2025Ronja AzulHelgøy3 h 48 min
27 Feb 2025Ronja AzulHelgøy3 h 13 min
23 Feb 2025Ronja AzulHelgøy5 h 2 min
30 Jan 2025Ronja AzulHelgøy2 h 2 min
30 Oct 2024Norwegian GannetVadholmen4 h 52 min
26 Oct 2024Ronja AzulTuholmane Ø5 h 11 min
19 Oct 2024Ronja AzulSyltøy2 h 16 min
15 Oct 2024Ronja AzulOanes Sjø1 h 55 min
13 Oct 2024Norwegian GannetOspeneset4 h 53 min
29 Sep 2024Ronja AzulPorsvika5 h 29 min
06 Apr 2024Ronja ChristopherTollaksholmen1 h 24 min
05 Apr 2024Ronja ChristopherTollaksholmen1 h 51 min
04 Apr 2024Ronja SilverOanes Sjø7 h 44 min
04 Apr 2024Ronja ChristopherTollaksholmen3 h 16 min
04 Apr 2024Ronja SilverOanes Sjø1 h 17 min
03 Apr 2024Ronja ChristopherTollaksholmen1 h 56 min
03 Apr 2024Ronja SilverOanes Sjø4 h 12 min
02 Apr 2024Ronja SilverHelgøy4 h 52 min
01 Apr 2024Ronja SilverHelgøy1 h 39 min
01 Apr 2024Ronja SilverHelgøy1 h 44 min
07 Mar 2024Norwegian GannetHaverøy4 h 35 min
03 Mar 2024Norwegian GannetHaverøy11 h 20 min
29 Feb 2024Norwegian GannetSkreda1 h 59 min
25 Feb 2024Norwegian GannetHillersvik6 h 11 min
21 Feb 2024Norwegian GannetHillersvik9 h 25 min
08 Feb 2024Ronja SilverHelgøy3 h 48 min
05 Feb 2024Ronja SilverHelgøy9 h 41 min
23 Jan 2024Ronja SilverHelgøy3 h 46 min
17 Jan 2024Ronja SilverHelgøy8 h 16 min
14 Jan 2024Ronja SilverHelgøy3 h 34 min
07 Jan 2024Ronja SilverKlungsholmen6 h 10 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
Grieg Seafood Rogaland Sjø ASWeek 40, 2023Week 47, 2025
Cermaq Finnmark Farming ASWeek 50, 2024Week 50, 2024
Grieg Seafood Farming ASWeek 48, 2025Week 33, 2026

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

Licences

Site MAB: 4,120 tonnes
LicenceTypeCapacityHolder
R B 0003Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tGrieg Seafood Farming AS
R B 0005Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tGrieg Seafood Farming AS
R B 0013Kommersiell / matfiskSalmon, Rainbow trout, Trout527 tGrieg Seafood Farming AS
R F 0002Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tGrieg Seafood Farming AS
R R 0002Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tGrieg Seafood Farming AS
R S 0001Forskning / matfiskSalmon, Rainbow trout, Trout780 tSkretting AS
R S 0002Forskning / matfiskSalmon, Rainbow trout, Trout780 tSkretting AS
R SS 0005Kommersiell / matfiskSalmon, Rainbow trout, Trout1,576 tGrieg Seafood Farming AS
R SS 0010Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tGrieg Seafood Farming AS
R ST 0015Undervisning / matfiskSalmon, Rainbow trout, Trout780 tRogaland Fylkeskommune

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