Skip to content
The Salmon Ledger
NOEN

Sessøya

Site 30877 · Tromsø municipality · Production area 11, Kvaløya til Loppa

Below the lice limit, week 39Operated by Lerøy Aurora Sjø AS · group Lerøy Seafood Group
Follow this farmDownload CSV
0.20Adult 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 39 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026
7Lice treatments in 2026Latest: Thermal delousing, week 35, 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
12Wellboat visits in 2026by 2 different vessels · latest 31 Aug 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
10.000.5Below the limit
20.000.5Below the limit
30.000.5Below the limit
40.000.5Below the limit
50.010.5Below the limit
60.010.5Below the limit
70.010.5Below the limit
80.010.5Below the limit
90.010.5Below the limit
100.010.5Below the limit
110.010.5Below the limit
120.010.5Below the limit
130.010.5Below the limit
140.010.5Below the limit
150.010.5Below the limit
160.010.5Below the limit
170.010.5Below the limit
180.010.5Below the limit
190.010.5Below the limit
200.010.5Below the limit
210.020.2Below the limit
220.030.2Below the limit
230.030.2Below the limit
240.030.2Below the limit
250.040.2Below the limit
260.050.2Below the limit
270.060.5Below the limit
280.090.5Below the limit
290.120.5Below the limit
300.150.5Below the limit
310.170.5Below the limit
320.210.5Below the limit
330.260.5Below the limit
340.330.5Below the limit
350.200.5Below the limit
360.050.5Below the limit
370.040.5Below the limit
380.120.5Below the limit
390.200.5Below the limit

Earlier years

20250 of 22 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
10.080.5Below the limit
20.080.5Below the limit
30.080.5Below the limit
40.120.5Below the limit
50.130.5Below the limit
60.170.5Below the limit
70.150.5Below the limit
80.200.5Below the limit
90.230.5Below the limit
100.240.5Below the limit
110.270.5Below the limit
120.320.5Below the limit
130.290.5Below the limit
140.400.5Near the limit
150.440.5Near the limit
16unknown0.5Not reported
17unknown0.5Not reported
18unknown0.5Not reported
19unknown0.5Not reported
20unknown0.5Not reported
21unknown0.2Not reported
22unknown0.2Not reported
23unknown0.2Not reported
24unknown0.2Not reported
25unknown0.2Not reported
26unknown0.2Not 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
460.010.5Below the limit
470.000.5Below the limit
480.000.5Below the limit
490.010.5Below the limit
500.000.5Below the limit
510.000.5Below the limit
520.000.5Below 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
5unknown0.5Not reported
60.000.5Below the limit
70.000.5Below the limit
80.000.5Below the limit
90.000.5Below the limit
100.010.5Below the limit
110.020.5Below the limit
120.020.5Below the limit
130.020.5Below the limit
140.020.5Below the limit
150.030.5Below the limit
160.020.5Below the limit
170.030.5Below the limit
180.040.5Below the limit
190.030.5Below the limit
200.040.5Below the limit
210.060.2Below the limit
220.060.2Below the limit
230.060.2Below the limit
240.060.2Below the limit
250.050.2Below the limit
260.050.2Below the limit
270.060.5Below the limit
280.050.5Below the limit
290.070.5Below the limit
300.050.5Below the limit
310.080.5Below the limit
320.080.5Below the limit
330.090.5Below the limit
340.200.5Below the limit
350.160.5Below the limit
360.180.5Below the limit
370.040.5Below the limit
380.060.5Below the limit
390.070.5Below the limit
400.100.5Below the limit
410.140.5Below the limit
420.190.5Below the limit
430.300.5Below the limit
440.430.5Near the limit
450.440.5Near the limit
460.520.5Above the limit
470.580.5Above the limit
480.480.5Near the limit
490.160.5Below the limit
500.140.5Below the limit
510.160.5Below the limit
520.070.5Below 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
490.000.5Below the limit
500.000.5Below the limit
510.000.5Below the limit
520.000.5Below the limit

Treatments

Norwegian Food Safety Authority
  • Week 35, 2026
    Thermal delousing, Freshwater treatment, Mechanical delousing17 pens
  • Week 51, 2025
    Medicinal feedWhole site · Emamectin benzoat
  • Week 49, 2024
    Other treatment3 pens · Kombi - Termisk med Optiflush
  • Week 48, 2024
    Other treatment3 pens · Kombi - Termisk med Optiflush
Show all 7
  • Week 37, 2024
    Other treatment6 pens · Kombi - Termisk med Optiflush
  • Week 36, 2024
    Other treatment4 pens · Kombi - Termisk med Optiflush
  • Week 28, 2024
    Medicinal feedWhole site · Emamectin benzoat

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

12 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 Aug 2026Ro VentureGlimbukta36 h 12 min
30 Aug 2026Ro VentureGlimbukta12 h 20 min
30 Aug 2026Ronja SkilsoyGlimbukta12 h 11 min
29 Aug 2026Ro VentureGlimbukta12 h 2 min
29 Aug 2026Ronja SkilsoyGlimbukta11 h 8 min
29 Aug 2026Ro VentureGlimbukta1 h 59 min
29 Aug 2026Ronja SkilsoyGlimbukta6 h 19 min
28 Aug 2026Ronja SkilsoyGlimbukta11 h 42 min
27 Aug 2026Ronja SkilsoyGlimbukta21 h 25 min
24 Aug 2026Ronja SkilsoyGlimbukta37 h 40 min
23 Aug 2026Ronja SkilsoySkjervøy20 h 6 min
22 Aug 2026Ronja SkilsoySkjervøy17 h 22 min
Show 40 older visits
ArrivalVesselPrevious farm (14 days)Duration
19 Nov 2025Reisano other farm3 h 46 min
17 Nov 2025ReisaSkjervøy2 h 5 min
12 Nov 2025ReisaSkjervøy2 h 15 min
10 Nov 2025ReisaSkjervøy4 h 1 min
24 Apr 2025ReisaSkjervøy54 min
22 Apr 2025ReisaSkjervøy2 h 39 min
29 Mar 2025Ro SpiritHestøy1 h 42 min
29 Mar 2025RohavSkjervøy1 h 15 min
09 Mar 2025ReisaSkjervøy2 h 43 min
25 Jan 2025ReisaLangås3 h 18 min
18 Jan 2025ReisaSkjervøy2 h 51 min
05 Jan 2025ReisaSkjervøy1 h 20 min
02 Jan 2025ReisaSkjervøy2 h 19 min
27 Dec 2024ReisaAngstauren4 h 13 min
22 Dec 2024CaspianKvitfloget4 h 41 min
15 Dec 2024ReisaSkjervøy2 h 15 min
07 Dec 2024Ro VentureSvindalen I29 h 21 min
07 Dec 2024SteigenStorskjæret2 h 24 min
30 Nov 2024Ro VentureHagebergan28 h 44 min
28 Nov 2024Ro VentureAngstauren3 h 50 min
19 Nov 2024ReisaSkjervøy2 h 50 min
16 Nov 2024ReisaKaranes2 h 49 min
12 Nov 2024Ro SpiritNæringsbukta4 h 49 min
10 Nov 2024Ro SpiritKlubben2 h 17 min
07 Nov 2024Ro SpiritKlubben2 h 24 min
06 Nov 2024Ro SailorHolmen5 h 11 min
05 Nov 2024Ro SpiritSkaret3 h 57 min
09 Sep 2024Ro FortuneFutnes46 h 54 min
07 Sep 2024Ro FortuneFutnes31 h 39 min
14 Aug 2024ReisaKlokkardalen1 h 34 min
14 Aug 2024ReisaKlokkardalen2 h 3 min
14 Aug 2024ReisaKlokkardalen3 h 48 min
13 Aug 2024ReisaKlokkardalen3 h 7 min
13 Aug 2024ReisaSkjervøy2 h 30 min
20 Jun 2024OddoeyLangås10 h 53 min
19 Jun 2024OddoeyLangås21 h 23 min
19 Jun 2024OddoeyLangås2 h 30 min
25 May 2024OddoeyBuktodden Nø19 h 18 min
25 May 2024OddoeyBuktodden Nø4 h 15 min
23 May 2024OddoeyBuktodden Nø24 h 11 min

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

Licences

Site MAB: 7,200 tonnes
LicenceTypeCapacityHolder
T K 0001Kommersiell / matfiskSalmon, Rainbow trout, Trout1,013 tLerøy Aurora Sjø AS
T K 0004Kommersiell / matfiskSalmon, Rainbow trout, Trout1,012 tLerøy Aurora Sjø AS
T K 0020Kommersiell / matfiskSalmon, Rainbow trout, Trout984 tLerøy Aurora Sjø AS
T K 0022Kommersiell / matfiskSalmon, Rainbow trout, Trout984 tLerøy Aurora Sjø AS
T K 0028Kommersiell / matfiskSalmon, Rainbow trout, Trout984 tLerøy Aurora Sjø AS
T T 0001Kommersiell / matfiskSalmon, Rainbow trout, Trout1,021 tLerøy Aurora Sjø AS
T T 0008Kommersiell / matfiskSalmon, Rainbow trout, Trout1,021 tLerøy Aurora Sjø AS
T T 0010Kommersiell / matfiskSalmon, Rainbow trout, Trout1,021 tLerøy Aurora Sjø AS

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