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The Salmon Ledger
NOEN

Grasholman

Site 32037 · Lurøy municipality · Production area 8, Helgeland til Bodø

Below the lice limit, week 39Operated by Lovundlaks Sjø AS · group unknown
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0.31Adult female lice per fishLimit 0.50 · below the limitWeek 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026
0Weeks above the limit in 2026of 25 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026
3Lice treatments in 2026Latest: Other treatment, week 38, 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
32Wellboat visits in 2026by 5 different vessels · latest 11 Sep 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
10.440.5Near the limit
20.430.5Near the limit
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
12unknown0.5Not reported
13unknown0.5Not reported
14unknown0.5Not reported
15unknown0.5Not reported
16unknown0.5Not reported
170.000.5Below the limit
180.000.5Below the limit
190.000.5Below the limit
200.000.5Below the limit
210.000.2Below the limit
220.000.2Below the limit
230.000.2Below the limit
240.020.2Below the limit
250.070.2Below the limit
260.120.2Below the limit
270.200.5Below the limit
280.170.5Below the limit
290.220.5Below the limit
300.330.5Below the limit
310.430.5Near the limit
320.210.5Below the limit
330.150.5Below the limit
340.140.5Below the limit
350.110.5Below the limit
360.260.5Below the limit
370.340.5Below the limit
380.240.5Below the limit
390.310.5Below the limit

Earlier years

20251 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
90.010.5Below the limit
100.010.5Below the limit
110.040.5Below the limit
120.010.5Below the limit
130.040.5Below the limit
140.090.5Below the limit
150.100.5Below the limit
160.040.5Below the limit
170.110.5Below the limit
180.240.5Below the limit
190.090.5Below the limit
200.130.5Below the limit
210.010.2Below the limit
220.000.2Below the limit
230.020.2Below the limit
240.030.2Below the limit
250.020.2Below the limit
260.020.2Below the limit
270.020.5Below the limit
280.050.5Below the limit
290.120.5Below the limit
300.210.5Below the limit
310.180.5Below the limit
320.210.5Below the limit
330.270.5Below the limit
340.180.5Below the limit
350.410.5Near the limit
360.430.5Near the limit
370.050.5Below the limit
380.490.5Near the limit
390.390.5Below the limit
400.370.5Below the limit
410.660.5Above the limit
420.170.5Below the limit
430.410.5Near the limit
440.210.5Below the limit
450.270.5Below the limit
460.400.5Near the limit
470.220.5Below the limit
480.250.5Below the limit
490.300.5Below the limit
500.380.5Below the limit
510.450.5Near the limit
520.420.5Near the limit
20240 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
1unknown0.5Reported without a count
20.130.5Below the limit
3unknown0.5Reported without a count
40.260.5Below the limit
5unknown0.5Not reported
60.230.5Below the limit
70.270.5Below the limit
8unknown0.5Reported without a count
90.290.5Below the limit
100.230.5Below the limit
110.310.5Below the limit
120.280.5Below the limit
130.300.5Below the limit
140.160.5Below the limit
150.130.5Below the limit
160.180.5Below the limit
170.190.5Below the limit
180.090.5Below the limit
190.140.5Below the limit
200.090.5Below the limit
210.080.2Below the limit
220.070.2Below the limit
230.070.2Below the limit
240.100.2Below the limit
250.140.2Below the limit
260.080.2Below the limit
270.000.5Below the limit
280.010.5Below the limit
290.010.5Below the limit
300.010.5Below the limit
310.000.5Below the limit
320.230.5Below the limit
330.250.5Below the limit
340.370.5Below the limit
350.450.5Near the limit
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
480.000.5Below the limit
490.000.5Below the limit
500.000.5Below the limit
510.000.5Below the limit
520.000.5Below the limit
20230 of 4 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
42unknown0.5Not reported
43unknown0.5Not reported
44unknown0.5Not reported
45unknown0.5Not reported
46unknown0.5Not reported
47unknown0.5Not reported
48unknown0.5Not reported
490.140.5Below the limit
500.180.5Below the limit
510.160.5Below the limit
520.160.5Below the limit

Treatments

Norwegian Food Safety Authority
  • Week 38, 2026
    Other treatment5 pens · Thermolicer og Optiflush
  • Week 33, 2026
    Other treatment4 pens · Thermolicer og Optiflush
  • Week 32, 2026
    Other treatment5 pens · Thermolicer og Optiflush
  • Week 44, 2025
    Mechanical delousing3 pens
Show all 18
  • Week 43, 2025
    Mechanical delousing4 pens
  • Week 42, 2025
    Mechanical delousing6 pens
  • Week 41, 2025
    Other treatment2 pens · Thermolicer og Optiflush
  • Week 40, 2025
    Mechanical delousing2 pens
  • Week 37, 2025
    Other treatment10 pens · Ferskvann og Thermolicer
  • Week 36, 2025
    Other treatment3 pens · Thermolicer og Optiflush
  • Week 32, 2025
    Other treatment4 pens · Thermolicer og Optiflush
  • Week 21, 2025
    Other treatmentWhole site · Thermolicer og Optiflush
  • Week 20, 2025
    Medicinal feed6 pens · Emamectin benzoat
  • Week 19, 2025
    Medicinal feed6 pens · Emamectin benzoat
  • Week 18, 2025
    Medicinal feed6 pens · Emamectin benzoat
  • Week 31, 2024
    Thermal delousingWhole site
  • Week 26, 2024
    Freshwater treatment, Thermal delousing6 pens
  • Week 25, 2024
    Freshwater treatment, Thermal delousing8 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

32 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
11 Sep 2026OddoeyBuktodden Nø3 h 22 min
01 Sep 2026OddoeySundsøy8 h 37 min
31 Aug 2026OddoeySundsøy18 h 39 min
30 Aug 2026OddoeySundsøy9 h 12 min
17 Aug 2026OddoeyVarpet31 h 1 min
10 Aug 2026Ro VentureSlønga15 h 29 min
03 Aug 2026Ro VentureGåsflestaren4 h 48 min
03 Aug 2026Ro VentureGåsflestaren12 h 54 min
31 Jul 2026OddoeyNordbotnet22 h 54 min
22 Jul 2026OddoeyMangvardan5 h 56 min
21 Jul 2026OddoeyMangvardan19 h 22 min
20 Jul 2026OddoeyMangvardan9 h 31 min
Show 85 older visits
ArrivalVesselPrevious farm (14 days)Duration
04 Jul 2026OddoeyMangvardan22 h 58 min
04 Jul 2026OddoeyMangvardan4 h 18 min
22 Jun 2026OddoeyMangvardan21 h 10 min
08 Jun 2026OddoeyStokkasjøen18 h 56 min
27 May 2026OddoeyStokkasjøen3 h 19 min
26 May 2026Ro SpiritHestøy50 min
26 May 2026OddoeyStokkasjøen9 h 14 min
25 May 2026OddoeyStokkasjøen7 h 54 min
14 May 2026OddoeyMangvardan15 h 13 min
27 Apr 2026Ro SpiritAldalen3 h 29 min
26 Apr 2026Ro SpiritAldalen1 h 45 min
25 Apr 2026Ro SpiritAldalen1 h 44 min
24 Apr 2026Ro SpiritAldalen54 min
01 Feb 2026Ro SailorHolmen1 h 51 min
25 Jan 2026Ro SailorSandan Sø1 h 22 min
22 Jan 2026Ro SailorHestøy1 h 59 min
20 Jan 2026Ro SailorHestøy1 h 18 min
14 Jan 2026Ro MasterHestøy1 h 41 min
11 Jan 2026Ro MasterStore Bukkøy N2 h 13 min
05 Jan 2026Ro MasterHestøy1 h 39 min
15 Dec 2025Ro MasterKlubben45 min
08 Dec 2025Ro SpiritStore Bukkøy N1 h 19 min
22 Nov 2025Ro VentureVardskjæret S1 h 22 min
17 Nov 2025Ro SpiritMangvardan58 min
15 Nov 2025TonnyStokkasjøen51 min
03 Nov 2025Ro SailorHestøy1 h 5 min
03 Nov 2025Ro SailorHestøy1 h 21 min
29 Oct 2025Ro SailorSkaret1 h 30 min
24 Oct 2025Ro SunriseSkinnstakkvika11 h 36 min
23 Oct 2025Ro SunriseSkinnstakkvika14 h 2 min
22 Oct 2025SteigenHestøy1 h 59 min
16 Oct 2025SteigenHestøy9 h 43 min
15 Oct 2025SteigenSkauholmen9 h 51 min
14 Oct 2025SteigenSkauholmen2 h 3 min
29 Sep 2025Ro SailorAlsvåg1 h 21 min
25 Sep 2025Ro SpiritHestøy2 h 53 min
13 Sep 2025Ro VentureKorsvika9 h 43 min
09 Sep 2025Ro VentureKorsvika12 h 59 min
08 Sep 2025Ro VentureKorsvika9 h 29 min
07 Sep 2025Ro VentureKorsvika8 h 18 min
08 Aug 2025Ro VentureMåvær24 h 2 min
23 May 2025Ro FortuneStore Bukkøy N19 h 22 min
22 May 2025Ro FortuneStore Bukkøy N4 h 46 min
17 Apr 2025OddoeyVardskjæret S2 h 55 min
16 Apr 2025OddoeyVardskjæret S9 h 14 min
16 Apr 2025OddoeyVardskjæret S5 h 5 min
16 Apr 2025OddoeyVardskjæret S2 h 56 min
22 Jan 2025OddoeyMåvær9 h 42 min
21 Jan 2025OddoeyMåvær1 h 30 min
31 Dec 2024Ro SailorKlavelandet52 min
28 Nov 2024ReisaSkjervøy2 h 23 min
27 Nov 2024ReisaSkjervøy4 h 3 min
26 Nov 2024Ro SailorKlubben2 h 36 min
19 Sep 2024Ro MasterBørøya Slaktemerd disease or zone there33 min
15 Sep 2024Ro MasterHestøy1 h 15 min
12 Sep 2024Ro MasterHestøy2 h 40 min
12 Sep 2024Ro MasterNordfugløy2 h 4 min
10 Sep 2024Ro MasterHestøy2 h 35 min
08 Sep 2024Ro MasterHestøy1 h 47 min
19 Aug 2024OddoeyVardskjæret S20 h 19 min
02 Aug 2024Ro FortuneMidt Femris24 h 34 min
29 Jul 2024Ro SpiritHestøy1 h 13 min
26 Jul 2024OddoeySundsøy18 h 54 min
07 Jul 2024OddoeyNordbotnet19 h 6 min
01 Jul 2024Ro SpiritHestøy5 h 13 min
25 Jun 2024Ro FortuneHestøy21 h 20 min
23 Jun 2024Ro FortuneHestøy31 h 50 min
22 Jun 2024Ro FortuneKlubben1 h 35 min
17 Jun 2024Ro SailorInnerbrokløysa1 h 37 min
06 Jun 2024OddoeyStore Bukkøy N22 h 15 min
29 May 2024FaeroeysundSkauholmen2 h 4 min
16 May 2024OddoeyVarpet14 h 34 min
15 May 2024OddoeyVarpet5 h 9 min
14 May 2024Ro ArcticHestøy1 h 9 min
12 May 2024Ro ArcticLabukta V1 h 18 min
06 May 2024Ro NorthHestøy2 h 45 min
09 Apr 2024Ro FortuneHestøy52 min
08 Apr 2024Ro FortuneHestøy1 h 9 min
01 Apr 2024OddoeyKalvhylla disease or zone there13 h 14 min
31 Mar 2024OddoeyKalvhylla disease or zone there13 h 1 min
30 Mar 2024OddoeyKalvhylla disease or zone there2 h 32 min
25 Mar 2024Ro FortuneHestøy1 h 11 min
19 Mar 2024Ro FortuneHestøy1 h 5 min
19 Mar 2024Oddoeyno other farm55 min
11 Mar 2024Ro NorthHestøy2 h 7 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
Lovundlaks ASWeek 49, 2023Week 49, 2023
Lovundlaks Sjø ASWeek 50, 2023Week 39, 2026

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

Licences

Site MAB: 3,900 tonnes
LicenceTypeCapacityHolder
N BØ 0002Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tEgil Kristoffersen & Sønner AS
N DA 0003Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tMowi Seawater Norway AS
N DA 0004Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tMowi Seawater Norway AS
N DA 0005Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tMowi Seawater Norway AS
N DA 0024Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tMowi Seawater Norway AS
N G 0063Kommersiell / matfiskSalmon, Rainbow trout, Trout538 tOrganic Seafarm AS
N G 0064Kommersiell / matfiskSalmon, Rainbow trout, Trout538 tOrganic Seafarm AS
N G 0066Kommersiell / matfiskSalmon, Rainbow trout, Trout375 tHelgeland Laks AS
N G 0067Kommersiell / matfiskSalmon, Rainbow trout, Trout375 tHelgeland Laks AS
N L 0003Kommersiell / matfiskSalmon, Rainbow trout, Trout796 tKvarøy Fiskeoppdrett A/s
N L 0005Kommersiell / matfiskSalmon, Rainbow trout, Trout796 tKvarøy Fiskeoppdrett A/s
N L 0008Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tLovundlaks Sjø AS
N L 0011Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tLovundlaks Sjø AS
N L 0045Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tLovundlaks Sjø AS
N L 0059Kommersiell / matfiskSalmon, Rainbow trout, Trout783 tLovundlaks Sjø AS
N L 0060Kommersiell / matfiskSalmon, Rainbow trout, Trout783 tLovundlaks Sjø AS
N L 0061Kommersiell / matfiskSalmon, Rainbow trout, Trout369 tLovundlaks Sjø AS
N L 0069Kommersiell / matfiskSalmon, Rainbow trout, Trout780 tOrganic Seafarm AS
N L 0071Kommersiell / matfiskSalmon, Rainbow trout, Trout369 tLovundlaks Sjø AS
N L 0072Kommersiell / matfiskSalmon, Rainbow trout, Trout369 tLovundlaks Sjø AS
N L 0074Forskning / matfiskSalmon, Rainbow trout, Trout780 tPolarfeed AS
N L 0075Forskning / matfiskSalmon, Rainbow trout, Trout780 tPolarfeed AS
N R 0002Kommersiell / matfiskSalmon, Rainbow trout, Trout817 tSelsøyvik Havbruk AS
N R 0013Kommersiell / matfiskSalmon, Rainbow trout, Trout804 tSelsøyvik Havbruk AS
N R 0048Kommersiell / matfiskSalmon, Rainbow trout, Trout101 tSelsøyvik Havbruk AS
N R 0049Kommersiell / matfiskSalmon, Rainbow trout, Trout101 tSelsøyvik Havbruk AS

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