Tortenneset

Site 31297 · Narvik municipality · Production area 9, Vestfjorden og Vesterålen

Below the lice limit, week 39Operated by Cermaq Norway Salmon AS

0.19Adult 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

2Lice treatments in 2026Latest: Mechanical delousing, week 36, 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

8Wellboat visits in 2026by 2 different vessels · latest 04 Sep 2026Derived from AIS · Norwegian Coastal Administration (AIS) · updated 01 Oct 2026

1Escapes reported1-10 salmon, April 2026Since 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

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Adult female lice per fish per week, 2026
Week	Adult female lice per fish	Lice limit	Status
1	0.01	0.5	Below the limit
2	0.01	0.5	Below the limit
3	0.01	0.5	Below the limit
4	0.01	0.5	Below the limit
5	0.01	0.5	Below the limit
6	0.00	0.5	Below the limit
7	0.01	0.5	Below the limit
8	0.01	0.5	Below the limit
9	0.00	0.5	Below the limit
10	0.00	0.5	Below the limit
11	0.01	0.5	Below the limit
12	0.01	0.5	Below the limit
13	0.01	0.5	Below the limit
14	0.01	0.5	Below the limit
15	0.00	0.5	Below the limit
16	0.01	0.5	Below the limit
17	0.01	0.5	Below the limit
18	0.00	0.5	Below the limit
19	0.00	0.5	Below the limit
20	0.00	0.5	Below the limit
21	0.00	0.2	Below the limit
22	0.00	0.2	Below the limit
23	0.00	0.2	Below the limit
24	0.00	0.2	Below the limit
25	0.00	0.2	Below the limit
26	0.00	0.2	Below the limit
27	0.02	0.5	Below the limit
28	0.02	0.5	Below the limit
29	0.07	0.5	Below the limit
30	0.12	0.5	Below the limit
31	0.11	0.5	Below the limit
32	0.09	0.5	Below the limit
33	0.10	0.5	Below the limit
34	0.19	0.5	Below the limit
35	0.34	0.5	Below the limit
36	0.11	0.5	Below the limit
37	0.15	0.5	Below the limit
38	0.17	0.5	Below the limit
39	0.19	0.5	Below the limit

Earlier years

20250 of 33 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

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Adult female lice per fish per week, 2025
Week	Adult female lice per fish	Lice limit	Status
1	0.03	0.5	Below the limit
2	0.04	0.5	Below the limit
3	0.05	0.5	Below the limit
4	unknown	0.5	Reported without a count
5	unknown	0.5	Reported without a count
6	unknown	0.5	Not reported
7	unknown	0.5	Not reported
8	unknown	0.5	Not reported
9	unknown	0.5	Not reported
10	unknown	0.5	Not reported
11	unknown	0.5	Not reported
12	unknown	0.5	Not reported
13	unknown	0.5	Not reported
14	unknown	0.5	Not reported
15	unknown	0.5	Not reported
16	unknown	0.5	Not reported
17	unknown	0.5	Not reported
18	unknown	0.5	Not reported
19	unknown	0.5	Not reported
20	unknown	0.5	Not reported
21	unknown	0.2	Not reported
22	unknown	0.2	Reported without a count
23	0.00	0.2	Below the limit
24	0.00	0.2	Below the limit
25	0.00	0.2	Below the limit
26	0.00	0.2	Below the limit
27	0.00	0.5	Below the limit
28	0.00	0.5	Below the limit
29	0.01	0.5	Below the limit
30	0.00	0.5	Below the limit
31	0.01	0.5	Below the limit
32	0.00	0.5	Below the limit
33	0.01	0.5	Below the limit
34	0.00	0.5	Below the limit
35	0.01	0.5	Below the limit
36	0.04	0.5	Below the limit
37	0.02	0.5	Below the limit
38	0.03	0.5	Below the limit
39	0.02	0.5	Below the limit
40	0.01	0.5	Below the limit
41	0.00	0.5	Below the limit
42	0.00	0.5	Below the limit
43	0.00	0.5	Below the limit
44	0.00	0.5	Below the limit
45	0.00	0.5	Below the limit
46	0.01	0.5	Below the limit
47	0.01	0.5	Below the limit
48	0.00	0.5	Below the limit
49	0.00	0.5	Below the limit
50	0.00	0.5	Below the limit
51	0.00	0.5	Below the limit
52	0.01	0.5	Below the limit

20240 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

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Adult female lice per fish per week, 2024
Week	Adult female lice per fish	Lice limit	Status
1	0.00	0.5	Below the limit
2	0.00	0.5	Below the limit
3	0.02	0.5	Below the limit
4	0.00	0.5	Below the limit
5	0.00	0.5	Below the limit
6	0.01	0.5	Below the limit
7	0.01	0.5	Below the limit
8	0.01	0.5	Below the limit
9	0.01	0.5	Below the limit
10	0.00	0.5	Below the limit
11	0.01	0.5	Below the limit
12	0.01	0.5	Below the limit
13	0.00	0.5	Below the limit
14	0.01	0.5	Below the limit
15	0.00	0.5	Below the limit
16	0.01	0.5	Below the limit
17	0.01	0.5	Below the limit
18	0.00	0.5	Below the limit
19	0.01	0.5	Below the limit
20	0.01	0.5	Below the limit
21	0.00	0.2	Below the limit
22	0.01	0.2	Below the limit
23	0.01	0.2	Below the limit
24	0.00	0.2	Below the limit
25	0.00	0.2	Below the limit
26	0.00	0.2	Below the limit
27	0.01	0.5	Below the limit
28	0.01	0.5	Below the limit
29	0.00	0.5	Below the limit
30	0.06	0.5	Below the limit
31	0.07	0.5	Below the limit
32	0.07	0.5	Below the limit
33	0.10	0.5	Below the limit
34	0.13	0.5	Below the limit
35	0.27	0.5	Below the limit
36	0.27	0.5	Below the limit
37	0.30	0.5	Below the limit
38	0.27	0.5	Below the limit
39	0.22	0.5	Below the limit
40	0.22	0.5	Below the limit
41	0.32	0.5	Below the limit
42	0.21	0.5	Below the limit
43	0.20	0.5	Below the limit
44	0.15	0.5	Below the limit
45	0.17	0.5	Below the limit
46	0.09	0.5	Below the limit
47	0.10	0.5	Below the limit
48	unknown	0.5	Not reported
49	0.12	0.5	Below the limit
50	0.04	0.5	Below the limit
51	0.04	0.5	Below the limit
52	0.03	0.5	Below 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

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Adult female lice per fish per week, 2023
Week	Adult female lice per fish	Lice limit	Status
40	unknown	0.5	Not reported
41	unknown	0.5	Not reported
42	unknown	0.5	Not reported
43	unknown	0.5	Not reported
44	unknown	0.5	Not reported
45	unknown	0.5	Not reported
46	unknown	0.5	Not reported
47	unknown	0.5	Not reported
48	unknown	0.5	Not reported
49	0.01	0.5	Below the limit
50	0.01	0.5	Below the limit
51	0.01	0.5	Below the limit
52	0.02	0.5	Below the limit

20210 of 2 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

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Adult female lice per fish per week, 2021
Week	Adult female lice per fish	Lice limit	Status
1	unknown	0.5	Not reported
2	unknown	0.5	Not reported
3	unknown	0.5	Not reported
4	unknown	0.5	Not reported
5	unknown	0.5	Not reported
6	unknown	0.5	Not reported
7	unknown	0.5	Not reported
8	unknown	0.5	Not reported
9	unknown	0.5	Not reported
10	unknown	0.5	Not reported
11	unknown	0.5	Not reported
12	unknown	0.5	Not reported
13	unknown	0.5	Not reported
14	unknown	0.5	Not reported
15	unknown	0.5	Not reported
16	unknown	0.5	Not reported
17	unknown	0.5	Not reported
18	unknown	0.5	Not reported
19	unknown	0.5	Not reported
20	unknown	0.5	Not reported
21	unknown	0.2	Not reported
22	unknown	0.2	Not reported
23	unknown	0.2	Not reported
24	unknown	0.2	Not reported
25	0.00	0.2	Below the limit
26	unknown	0.2	Not reported
27	unknown	0.5	Not reported
28	unknown	0.5	Not reported
29	unknown	0.5	Not reported
30	unknown	0.5	Not reported
31	unknown	0.5	Not reported
32	unknown	0.5	Not reported
33	unknown	0.5	Not reported
34	unknown	0.5	Not reported
35	unknown	0.5	Not reported
36	unknown	0.5	Not reported
37	unknown	0.5	Not reported
38	unknown	0.5	Not reported
39	unknown	0.5	Not reported
40	unknown	0.5	Not reported
41	unknown	0.5	Not reported
42	unknown	0.5	Not reported
43	unknown	0.5	Not reported
44	0.16	0.5	Below the limit
45	unknown	0.5	Not reported
46	unknown	0.5	Not reported
47	unknown	0.5	Not reported
48	unknown	0.5	Not reported
49	unknown	0.5	Not reported
50	unknown	0.5	Not reported
51	unknown	0.5	Not reported
52	unknown	0.5	Not reported

Treatments

Norwegian Food Safety Authority

Week 36, 2026
Mechanical delousing5 pens
Week 31, 2026
Mechanical delousingWhole site
Week 41, 2025
Medicinal feed8 pens · Emamectin benzoat
Week 40, 2025
Medicinal feedWhole site · Emamectin benzoat

Show all 5

Week 39, 2025
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

14 Apr 2026
1-10 salmon escapedCause: Uvisst. · recaptured 1 · Directorate of Fisheries

Wellboat visits

8 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.

Arrival	Vessel	Previous farm (14 days)	Duration
04 Sep 2026	Veidnes	Storskjæret	25 h 36 min
03 Sep 2026	Veidnes	Storskjæret	4 h 30 min
01 Aug 2026	Ro Sunrise	Alsvåg	32 h 22 min
01 Aug 2026	Ro Sunrise	Alsvåg	2 h 31 min
23 Jul 2026	Veidnes	Storskjæret	3 h 20 min
24 Jun 2026	Ro Sunrise	Tjukkeneset	1 h 7 min
24 Jun 2026	Ro Sunrise	Tjukkeneset	1 h 14 min
23 Jun 2026	Ro Sunrise	Tjukkeneset	1 h 56 min
03 Nov 2025	Steigen	Tjukkeneset	4 h 49 min
03 Nov 2025	Steigen	Storskjæret	2 h 20 min
29 Oct 2025	Steigen	Storskjæret	2 h 30 min
09 Sep 2025	Ro Chief	Storskjæret	3 h 1 min

Show 25 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
09 Sep 2025	Ro Chief	Storskjæret	35 min
25 Aug 2025	Ro Chief	Skaret	50 min
24 Aug 2025	Ro Chief	Skaret	1 h 57 min
22 Aug 2025	Ro Chief	Skaret	2 h 42 min
18 Jul 2025	Ro Chief	Leivsethamran	5 h 45 min
29 May 2025	Ro Chief	Hundbergan	59 min
29 May 2025	Steigen	Bakfjorden	2 h 6 min
28 May 2025	Steigen	Bakfjorden	5 h 43 min
01 Feb 2025	Veidnes	Storskjæret	3 h 34 min
26 Jan 2025	Veidnes	Storskjæret	4 h 25 min
23 Jan 2025	Veidnes	Storskjæret	3 h 54 min
22 Jan 2025	Veidnes	Storskjæret	2 h 53 min
11 Oct 2024	Steigen	Veggfjell	3 h 21 min
06 Sep 2024	Ro Chief	Storskjæret	1 h 49 min
04 Sep 2024	Ro Chief	Storskjæret	2 h 4 min
03 Sep 2024	Ro Chief	Storskjæret	6 h 25 min
02 Sep 2024	Ro Chief	Storskjæret	3 h 13 min
01 Sep 2024	Ro Chief	Storskjæret	3 h 3 min
01 Sep 2024	Rohav	Storskjæret	1 h 53 min
31 Aug 2024	Ro Chief	Storskjæret	2 h 37 min
31 Jul 2024	Ronja Silver	Kvernes	3 h 24 min
17 Jul 2024	Steigen	Storskjæret	2 h 46 min
16 Jul 2024	Steigen	Storskjæret	4 h 16 min
11 Jul 2024	Steigen	Tårnvika	9 h 39 min
11 Jul 2024	Steigen	Tårnvika	4 h 6 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.

Company	From	To
Cermaq Norway Salmon AS	Week 25, 2021	Week 44, 2021
Cermaq Norway Salmon AS	Week 49, 2023	Week 39, 2026

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

Licences

Site MAB: 3,120 tonnes

Licence	Type	Capacity	Holder
N BG 0008	Kommersiell / matfiskSalmon, Rainbow trout, Trout	812 t	Ballangen Sjøfarm AS
N BG 0009	Kommersiell / matfiskSalmon, Rainbow trout, Trout	812 t	Ballangen Sjøfarm AS
N BG 0010	Kommersiell / matfiskSalmon, Rainbow trout, Trout	256 t	Ballangen Sjøfarm AS
N N 0009	Kommersiell / matfiskSalmon, Rainbow trout, Trout	590 t	Cermaq Norway Salmon AS
N N 0010	Kommersiell / matfiskSalmon, Rainbow trout, Trout	295 t	Ballangen Sjøfarm AS
N SG 0051	Kommersiell / matfiskSalmon, Rainbow trout, Trout	510 t	Cermaq Norway Salmon AS
N Ø 0018	Kommersiell / matfiskSalmon, Rainbow trout, Trout	812 t	Cermaq Norway Salmon AS
N Ø 0021	Kommersiell / matfiskSalmon, Rainbow trout, Trout	812 t	Cermaq Norway Salmon AS

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