Årsetfjorden

Site 35797 · Nærøysund municipality · Production area 7, Nord-Trøndelag med Bindal

Below the lice limit, week 39Operated by Salmar Oppdrett AS · group SalMar

0.00Adult 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 23 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026

0Lice treatments in 2026None recorded2026 · Norwegian Food Safety Authority · updated 01 Oct 2026

0Active disease casesNone recordedRegister since 26 Nov 2024 · Norwegian Food Safety Authority · updated 01 Oct 2026

2Wellboat visits in 2026by 1 vessel · latest 24 May 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

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Adult female lice per fish per week, 2026
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	0.00	0.5	Below the limit
4	0.00	0.5	Below the limit
5	0.00	0.5	Below the limit
6	0.00	0.5	Below the limit
7	0.00	0.5	Below the limit
8	0.00	0.5	Below the limit
9	0.00	0.5	Below the limit
10	0.00	0.5	Below the limit
11	0.00	0.5	Below the limit
12	0.00	0.5	Below the limit
13	0.00	0.5	Below the limit
14	0.00	0.5	Below the limit
15	0.00	0.5	Below the limit
16	0.00	0.2	Below the limit
17	0.00	0.2	Below the limit
18	0.00	0.2	Below the limit
19	0.00	0.2	Below the limit
20	0.00	0.2	Below the limit
21	0.00	0.2	Below the limit
22	unknown	0.5	Not reported
23	unknown	0.5	Not reported
24	unknown	0.5	Not reported
25	unknown	0.5	Not reported
26	unknown	0.5	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	Reported without a count
38	0.00	0.5	Below the limit
39	0.00	0.5	Below the limit

Earlier years

20250 of 37 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	0.10	0.5	Below the limit
2	0.11	0.5	Below the limit
3	0.11	0.5	Below the limit
4	0.10	0.5	Below the limit
5	0.23	0.5	Below the limit
6	0.24	0.5	Below the limit
7	0.26	0.5	Below the limit
8	0.22	0.5	Below the limit
9	0.22	0.5	Below the limit
10	0.22	0.5	Below the limit
11	0.23	0.5	Below the limit
12	0.34	0.5	Below the limit
13	0.44	0.5	Near the limit
14	0.11	0.5	Below the limit
15	0.06	0.5	Below the limit
16	0.11	0.2	Below the limit
17	0.11	0.2	Below the limit
18	0.12	0.2	Below the limit
19	0.18	0.2	Near the limit
20	0.18	0.2	Near the limit
21	0.17	0.2	Near the limit
22	0.27	0.5	Below the limit
23	0.14	0.5	Below the limit
24	0.14	0.5	Below the limit
25	0.21	0.5	Below the limit
26	0.19	0.5	Below the limit
27	0.38	0.5	Below the limit
28	0.26	0.5	Below the limit
29	0.43	0.5	Near the limit
30	0.31	0.5	Below the limit
31	0.38	0.5	Below the limit
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	unknown	0.5	Not reported
45	unknown	0.5	Not reported
46	0.00	0.5	Below the limit
47	0.00	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	unknown	0.5	Reported without a count

20240 of 49 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	0.00	0.5	Below the limit
4	0.00	0.5	Below the limit
5	0.00	0.5	Below the limit
6	0.00	0.5	Below the limit
7	0.00	0.5	Below the limit
8	0.00	0.5	Below the limit
9	0.00	0.5	Below the limit
10	0.00	0.5	Below the limit
11	0.00	0.5	Below the limit
12	0.00	0.5	Below the limit
13	0.00	0.5	Below the limit
14	0.00	0.5	Below the limit
15	0.00	0.5	Below the limit
16	0.00	0.2	Below the limit
17	unknown	0.2	Not reported
18	unknown	0.2	Not reported
19	unknown	0.2	Reported without a count
20	0.00	0.2	Below the limit
21	0.00	0.2	Below the limit
22	0.00	0.5	Below the limit
23	0.00	0.5	Below the limit
24	0.00	0.5	Below the limit
25	0.00	0.5	Below the limit
26	0.00	0.5	Below the limit
27	0.00	0.5	Below the limit
28	0.00	0.5	Below the limit
29	0.00	0.5	Below the limit
30	0.00	0.5	Below the limit
31	0.03	0.5	Below the limit
32	0.05	0.5	Below the limit
33	0.08	0.5	Below the limit
34	0.05	0.5	Below the limit
35	0.05	0.5	Below the limit
36	0.23	0.5	Below the limit
37	0.30	0.5	Below the limit
38	0.25	0.5	Below the limit
39	0.28	0.5	Below the limit
40	0.15	0.5	Below the limit
41	0.25	0.5	Below the limit
42	0.23	0.5	Below the limit
43	0.35	0.5	Below the limit
44	0.38	0.5	Below the limit
45	0.40	0.5	Near the limit
46	0.33	0.5	Below the limit
47	0.35	0.5	Below the limit
48	0.32	0.5	Below the limit
49	0.10	0.5	Below the limit
50	0.13	0.5	Below the limit
51	0.16	0.5	Below the limit
52	0.09	0.5	Below the limit

20230 of 1 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	unknown	0.5	Not reported
50	unknown	0.5	Not reported
51	unknown	0.5	Reported without a count
52	0.00	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 30, 2025
Mechanical delousing4 pens
Week 28, 2025
Mechanical delousing4 pens
Week 26, 2025
Mechanical delousing3 pens
Week 23, 2025
Mechanical delousing3 pens

Show all 9

Week 14, 2025
Mechanical delousing6 pens
Week 8, 2025
Medicinal bathWhole site · Azamethiphos
Week 49, 2024
Other treatment4 pens · FreshWell
Week 46, 2024
Thermal delousing2 pens
Week 40, 2024
Other treatment1 pen · FreshWell

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

2 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
24 May 2026	Ronja Naeroeysund	Kvingra	3 h 21 min
23 May 2026	Ronja Naeroeysund	Kvingra	5 h 8 min
20 Aug 2025	Ronja Explorer	Marøya	3 h 4 min
18 Aug 2025	Ronja Explorer	Marøya	1 h 33 min
16 Aug 2025	Ronja Explorer	Marøya	2 h 11 min
13 Aug 2025	Ronja Explorer	Marøya	2 h 20 min
07 Aug 2025	Ronja Explorer	Marøya	2 h 11 min
06 Aug 2025	Ronja Explorer	Marøya	2 h 40 min
05 Aug 2025	Ronja Explorer	Marøya	1 h 53 min
04 Aug 2025	Ronja Explorer	Heggvika	5 h 45 min
22 Jul 2025	Ronja Naeroeysund	Kvaløya	45 h 14 min
10 Jul 2025	Ronja Naeroeysund	Øksningen	4 h 37 min

Show 21 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
08 Jul 2025	Ronja Naeroeysund	Øksningen	36 h 9 min
02 Apr 2025	Ronja Naeroeysund	Båfjordstranda	19 h 16 min
01 Apr 2025	Ronja Naeroeysund	Båfjordstranda	14 h 21 min
23 Feb 2025	Ronja Ocean	Humulen	2 h 0 min
23 Feb 2025	Ronja Ocean	Humulen	6 h 27 min
23 Feb 2025	Ronja Ocean	Humulen	7 h 3 min
22 Feb 2025	Ronja Ocean	Humulen	6 h 3 min
22 Feb 2025	Ronja Ocean	Humulen	7 h 22 min
22 Feb 2025	Ronja Ocean	Humulen	6 h 42 min
21 Feb 2025	Ronja Ocean	Humulen	12 h 6 min
21 Feb 2025	Ronja Ocean	Humulen	6 h 34 min
21 Feb 2025	Ronja Ocean	Humulen	4 h 45 min
08 Dec 2024	Ronja Naeroeysund	Lille Kvitholmen	13 h 15 min
07 Dec 2024	Ronja Naeroeysund	Lille Kvitholmen	6 h 26 min
11 Nov 2024	Ronja Ocean	Eiterfjorden	15 h 25 min
30 Sep 2024	Ronja Naeroeysund	Klungset	9 h 53 min
29 Sep 2024	Ronja Naeroeysund	Klungset	5 h 10 min
24 May 2024	Viknatrans	Lybergsvika	1 h 43 min
07 May 2024	Ronja Explorer	Båfjordstranda	2 h 46 min
22 Apr 2024	Ronja Naeroeysund	Dolma N	2 h 56 min
22 Apr 2024	Ronja Naeroeysund	Stasøya	4 h 52 min

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

Licences

Site MAB: 4,680 tonnes

Licence	Type	Capacity	Holder
NT NR 0055	Kommersiell / matfiskSalmon, Rainbow trout, Trout	804 t	Salmar Oppdrett AS
NT V 0001	Kommersiell / matfiskSalmon, Rainbow trout, Trout	804 t	Salmar Oppdrett AS
NT V 0013	Kommersiell / matfiskSalmon, Rainbow trout, Trout	804 t	Salmar Oppdrett AS
TR ND 0001	Kommersiell / matfiskSalmon, Rainbow trout, Trout	1,101 t	Salmar Oppdrett AS
TR ND 0014	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Salmar Oppdrett AS
TR ND 0015	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Salmar Oppdrett AS
TR ND 0016	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Salmar Oppdrett AS
TR ND 0017	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Salmar Oppdrett AS
TR NR 0007	Kommersiell / matfiskSalmon, Rainbow trout, Trout	934 t	Salmar Oppdrett AS

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