Skrosen

Site 12705 · Leka municipality · Production area 7, Nord-Trøndelag med Bindal

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

0.42Adult female lice per fishLimit 0.50 · near the limitWeek 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026

0Weeks above the limit in 2026of 14 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026

3Lice treatments in 2026Latest: Mechanical delousing, week 39, 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

11Wellboat visits in 2026by 3 different vessels · latest 25 Aug 2026Derived from AIS · Norwegian Coastal Administration (AIS) · updated 01 Oct 2026

1Escapes reported1 salmon, June 2019Since 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	0.08	0.5	Below the limit
2	0.10	0.5	Below the limit
3	0.13	0.5	Below the limit
4	0.18	0.5	Below the limit
5	0.08	0.5	Below the limit
6	0.18	0.5	Below the limit
7	unknown	0.5	Reported without a count
8	0.16	0.5	Below the limit
9	0.19	0.5	Below the limit
10	0.30	0.5	Below the limit
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	0.2	Not reported
17	unknown	0.2	Not reported
18	unknown	0.2	Not reported
19	unknown	0.2	Not reported
20	unknown	0.2	Not reported
21	unknown	0.2	Not reported
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	0.00	0.5	Below the limit
36	0.03	0.5	Below the limit
37	0.11	0.5	Below the limit
38	0.17	0.5	Below the limit
39	0.42	0.5	Near the limit

Earlier years

20250 of 23 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	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	0.2	Not reported
17	unknown	0.2	Not reported
18	unknown	0.2	Not reported
19	unknown	0.2	Not reported
20	unknown	0.2	Not reported
21	unknown	0.2	Not reported
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	0.16	0.5	Below the limit
31	0.23	0.5	Below the limit
32	0.40	0.5	Near the limit
33	0.45	0.5	Near the limit
34	0.12	0.5	Below the limit
35	0.44	0.5	Near the limit
36	0.33	0.5	Below the limit
37	0.19	0.5	Below the limit
38	0.35	0.5	Below the limit
39	0.34	0.5	Below the limit
40	0.13	0.5	Below the limit
41	0.33	0.5	Below the limit
42	0.48	0.5	Near the limit
43	0.14	0.5	Below the limit
44	0.25	0.5	Below the limit
45	0.35	0.5	Below the limit
46	0.22	0.5	Below the limit
47	0.36	0.5	Below the limit
48	0.40	0.5	Near the limit
49	0.08	0.5	Below the limit
50	0.05	0.5	Below the limit
51	0.12	0.5	Below the limit
52	0.05	0.5	Below the limit

20240 of 10 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	0.38	0.5	Below the limit
2	0.40	0.5	Near the limit
3	0.40	0.5	Near the limit
4	0.17	0.5	Below the limit
5	0.13	0.5	Below the limit
6	0.10	0.5	Below the limit
7	0.13	0.5	Below the limit
8	0.17	0.5	Below the limit
9	0.20	0.5	Below the limit
10	0.37	0.5	Below the limit
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	0.2	Not reported
17	unknown	0.2	Not reported
18	unknown	0.2	Not reported
19	unknown	0.2	Not reported
20	unknown	0.2	Not reported
21	unknown	0.2	Not reported
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	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	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

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

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Adult female lice per fish per week, 2023
Week	Adult female lice per fish	Lice limit	Status
40	0.25	0.5	Below the limit
41	0.22	0.5	Below the limit
42	0.48	0.5	Near the limit
43	0.16	0.5	Below the limit
44	0.23	0.5	Below the limit
45	0.18	0.5	Below the limit
46	0.37	0.5	Below the limit
47	0.15	0.5	Below the limit
48	0.13	0.5	Below the limit
49	0.31	0.5	Below the limit
50	0.30	0.5	Below the limit
51	0.31	0.5	Below the limit
52	0.38	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 39, 2026
Mechanical delousing1 pen
Week 37, 2026
Mechanical delousing2 pens
Week 35, 2026
Mechanical delousingWhole site
Week 49, 2025
Mechanical delousing3 pens

Show all 14

Week 43, 2025
Mechanical delousing3 pens
Week 40, 2025
Mechanical delousing3 pens
Week 37, 2025
Mechanical delousing1 pen
Week 36, 2025
Mechanical delousing3 pens
Week 34, 2025
Mechanical delousing5 pens
Week 31, 2025
Mechanical delousing3 pens
Week 30, 2025
Mechanical delousing3 pens
Week 4, 2024
Other treatment2 pens · Wellfighter
Week 47, 2023
Other treatment5 pens · Wellfighter
Week 43, 2023
Other treatment6 pens · Hydrolicer

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

28 Jun 2019
1 salmon escapedCause: Sannsynlig gnag fra lift up. · Directorate of Fisheries

Wellboat visits

11 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
25 Aug 2026	Ronja Ocean	Kvingra	1 h 55 min
25 Aug 2026	Ronja Ocean	Kvingra	2 h 6 min
24 Aug 2026	Ronja Ocean	Kvingra	1 h 48 min
28 Mar 2026	Aasvaerfjord	Marøya	2 h 18 min
25 Mar 2026	Aasvaerfjord	Marøya	2 h 12 min
24 Mar 2026	Aasvaerfjord	Marøya	1 h 1 min
24 Mar 2026	Aasvaerfjord	Marøya	1 h 47 min
22 Mar 2026	Aasvaerfjord	Marøya	3 h 6 min
18 Mar 2026	Namsos	Marøya	4 h 2 min
17 Mar 2026	Namsos	Marøya	1 h 25 min
24 Jan 2026	Aasvaerfjord	Marøya	5 h 24 min
03 Oct 2025	Ronja Ocean	Hjortøya	3 h 50 min

Show 22 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
28 Sep 2025	Ronja Explorer	Marøya	1 h 47 min
26 Sep 2025	Ronja Explorer	Marøya	2 h 28 min
14 Sep 2025	Ronja Naeroeysund	Helligholmen	11 h 57 min
21 Aug 2025	Ronja Naeroeysund	Makrellskjæret	23 h 6 min
20 Aug 2025	Ronja Naeroeysund	Makrellskjæret	16 h 19 min
19 Aug 2025	Ronja Naeroeysund	Makrellskjæret	9 h 27 min
28 Jul 2025	Ronja Naeroeysund	Kvingra	3 h 47 min
28 Jul 2025	Ronja Naeroeysund	Kvingra	2 h 31 min
27 Jul 2025	Ronja Naeroeysund	Kvingra	1 h 41 min
27 Jul 2025	Ronja Naeroeysund	Kvingra	2 h 12 min
27 Jul 2025	Ronja Naeroeysund	Kvingra	2 h 29 min
26 Jul 2025	Ronja Naeroeysund	Kvingra	2 h 15 min
15 Mar 2024	Ronja Naeroeysund	Marøya	3 h 54 min
13 Mar 2024	Ronja Ocean	Marøya	1 h 7 min
13 Mar 2024	Ronja Ocean	Hindholmen	1 h 25 min
26 Jan 2024	Ro Arctic	Trettevik	2 h 13 min
26 Jan 2024	Ronja Ocean	Kyrøyene	8 h 39 min
25 Jan 2024	Ronja Princess	Andholmen 1	3 h 25 min
23 Jan 2024	Aasvaerfjord	Marøya	2 h 47 min
20 Jan 2024	Ronja Princess	Klampvika N	3 h 27 min
12 Jan 2024	Ronja Princess	Nordskag	5 h 8 min
12 Jan 2024	Ro Vision	Barøya	1 h 57 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 0002	Kommersiell / matfiskSalmon, Rainbow trout, Trout	804 t	Salmar Oppdrett AS
NT NR 0010	Kommersiell / matfiskSalmon, Rainbow trout, Trout	804 t	Salmar Oppdrett AS
NT NR 0041	Kommersiell / matfiskSalmon, Rainbow trout, Trout	804 t	Salmar Oppdrett AS
NT NR 0051	Kommersiell / matfiskSalmon, Rainbow trout, Trout	804 t	Salmar Oppdrett AS
NT V 0013	Kommersiell / matfiskSalmon, Rainbow trout, Trout	804 t	Salmar Oppdrett AS

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