Indre Skjervøy

Site 12599 · Osen municipality · Production area 6, Nordmøre og Sør-Trøndelag

Near the lice limit, week 39Operated by Mowi Seawater Norway AS · group Mowi

0.48Adult 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 39 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026

18Lice 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

15Wellboat visits in 2026by 1 vessel · latest 10 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 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

Show as table

Adult female lice per fish per week, 2026
Week	Adult female lice per fish	Lice limit	Status
1	0.06	0.5	Below the limit
2	0.06	0.5	Below the limit
3	0.10	0.5	Below the limit
4	0.12	0.5	Below the limit
5	0.15	0.5	Below the limit
6	0.19	0.5	Below the limit
7	0.16	0.5	Below the limit
8	0.16	0.5	Below the limit
9	0.16	0.5	Below the limit
10	0.14	0.5	Below the limit
11	0.17	0.5	Below the limit
12	0.17	0.5	Below the limit
13	0.18	0.5	Below the limit
14	0.18	0.5	Below the limit
15	0.21	0.5	Below the limit
16	0.17	0.2	Near the limit
17	0.16	0.2	Below the limit
18	0.18	0.2	Near the limit
19	0.11	0.2	Below the limit
20	0.13	0.2	Below the limit
21	0.16	0.2	Below the limit
22	0.18	0.5	Below the limit
23	0.14	0.5	Below the limit
24	0.17	0.5	Below the limit
25	0.13	0.5	Below the limit
26	0.11	0.5	Below the limit
27	0.19	0.5	Below the limit
28	0.13	0.5	Below the limit
29	0.13	0.5	Below the limit
30	0.10	0.5	Below the limit
31	0.13	0.5	Below the limit
32	0.18	0.5	Below the limit
33	0.23	0.5	Below the limit
34	0.20	0.5	Below the limit
35	0.10	0.5	Below the limit
36	0.18	0.5	Below the limit
37	0.19	0.5	Below the limit
38	0.35	0.5	Below the limit
39	0.48	0.5	Near the limit

Earlier years

20250 of 18 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
Week	Adult female lice per fish	Lice limit	Status
1	0.29	0.5	Below the limit
2	0.36	0.5	Below the limit
3	0.40	0.5	Near the limit
4	0.36	0.5	Below the limit
5	0.16	0.5	Below the limit
6	unknown	0.5	Reported without a count
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	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	0.00	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	0.01	0.5	Below the limit
45	0.02	0.5	Below the limit
46	0.03	0.5	Below the limit
47	0.02	0.5	Below the limit
48	0.02	0.5	Below the limit
49	0.04	0.5	Below the limit
50	0.03	0.5	Below the limit
51	0.04	0.5	Below the limit
52	0.04	0.5	Below the limit

20243 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
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	unknown	0.5	Reported without a count
6	0.00	0.5	Below the limit
7	0.00	0.5	Below the limit
8	0.07	0.5	Below the limit
9	0.07	0.5	Below the limit
10	0.05	0.5	Below the limit
11	0.05	0.5	Below the limit
12	0.03	0.5	Below the limit
13	0.02	0.5	Below the limit
14	0.02	0.5	Below the limit
15	0.04	0.5	Below the limit
16	0.04	0.2	Below the limit
17	0.06	0.2	Below the limit
18	0.08	0.2	Below the limit
19	0.10	0.2	Below the limit
20	0.15	0.2	Below the limit
21	0.19	0.2	Near the limit
22	0.27	0.5	Below the limit
23	0.27	0.5	Below the limit
24	0.21	0.5	Below the limit
25	0.10	0.5	Below the limit
26	0.08	0.5	Below the limit
27	0.21	0.5	Below the limit
28	0.41	0.5	Near the limit
29	0.42	0.5	Near the limit
30	0.49	0.5	Near the limit
31	0.33	0.5	Below the limit
32	0.45	0.5	Near the limit
33	0.48	0.5	Near the limit
34	0.85	0.5	Above the limit
35	1.70	0.5	Above the limit
36	1.94	0.5	Above the limit
37	0.37	0.5	Below the limit
38	0.20	0.5	Below the limit
39	0.27	0.5	Below the limit
40	0.29	0.5	Below the limit
41	0.23	0.5	Below the limit
42	0.26	0.5	Below the limit
43	0.45	0.5	Near the limit
44	0.30	0.5	Below the limit
45	0.28	0.5	Below the limit
46	0.30	0.5	Below the limit
47	0.31	0.5	Below the limit
48	0.26	0.5	Below the limit
49	0.25	0.5	Below the limit
50	0.28	0.5	Below the limit
51	0.28	0.5	Below the limit
52	0.33	0.5	Below the limit

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

Show as table

Adult female lice per fish per week, 2023
Week	Adult female lice per fish	Lice limit	Status
40	0.00	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	0.00	0.5	Below the limit
47	0.02	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	0.00	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 39, 2026
Thermal delousing, Mechanical delousing3 pens
Week 37, 2026
Thermal delousing1 pen
Week 35, 2026
Mechanical delousing3 pens
Week 34, 2026
Thermal delousing4 pens

Show all 28

Week 33, 2026
Thermal delousing2 pens
Week 31, 2026
Thermal delousing1 pen
Week 30, 2026
Mechanical delousing3 pens
Week 29, 2026
Mechanical delousing1 pen
Week 28, 2026
Mechanical delousing5 pens
Week 26, 2026
Thermal delousing2 pens
Week 25, 2026
Mechanical delousing4 pens
Week 24, 2026
Thermal delousing1 pen
Week 23, 2026
Mechanical delousing4 pens
Week 19, 2026
Thermal delousing2 pens
Week 17, 2026
Thermal delousing1 pen
Week 16, 2026
Mechanical delousing4 pens
Week 6, 2026
Thermal delousing1 pen
Week 47, 2024
Mechanical delousing1 pen
Week 42, 2024
Mechanical delousing2 pens
Week 40, 2024
Mechanical delousing3 pens
Week 38, 2024
Mechanical delousing2 pens
Week 37, 2024
Mechanical delousing4 pens
Week 36, 2024
Mechanical delousing2 pens
Week 31, 2024
Mechanical delousing4 pens
Week 30, 2024
Mechanical delousing3 pens
Week 29, 2024
Mechanical delousing2 pens
Week 25, 2024
Thermal delousing2 pens
Week 24, 2024
Mechanical delousing, Thermal delousing9 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

15 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
10 Sep 2026	Froy Saga	Brettingen	15 h 26 min
20 Aug 2026	Froy Saga	Lønngrunnen	10 h 44 min
18 Aug 2026	Froy Saga	Lønngrunnen	41 h 43 min
18 Aug 2026	Froy Saga	Lønngrunnen	3 h 31 min
17 Aug 2026	Froy Saga	Lønngrunnen	7 h 59 min
10 Aug 2026	Froy Saga	Nørholmen	35 h 39 min
30 Jul 2026	Froy Saga	Hofsøya	18 h 14 min
24 Jun 2026	Froy Saga	Aursøysva	6 h 46 min
23 Jun 2026	Froy Saga	Aursøysva	9 h 5 min
22 Jun 2026	Froy Saga	Aursøysva	20 h 58 min
11 Jun 2026	Froy Saga	Tårnvika	12 h 40 min
07 May 2026	Froy Saga	Jamnungen	16 h 38 min

Show 32 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
06 May 2026	Froy Saga	Jamnungen	15 h 40 min
26 Apr 2026	Froy Saga	Korsholman	14 h 18 min
05 Feb 2026	Froy Saga	Hendneset	15 h 17 min
22 Oct 2025	Ronja Evolution	no other farm	2 h 30 min
16 Oct 2025	Ronja Evolution	no other farm	1 h 57 min
14 Oct 2025	Ronja Evolution	no other farm	2 h 14 min
12 Oct 2025	Ronja Evolution	Lille Torsøy	3 h 56 min
06 Oct 2025	Ronja Evolution	Lille Torsøy	1 h 45 min
03 Oct 2025	Ronja Vita	Nausttaren	2 h 26 min
02 Oct 2025	Ronja Evolution	Lille Torsøy	2 h 23 min
01 Oct 2025	Ronja Vita	Nausttaren	57 min
29 Sep 2025	Ronja Vita	Nausttaren	2 h 49 min
20 Aug 2024	Ronja Skilsoy	Gjerde	5 h 19 min
20 Jul 2024	Froy Jarl	Breidvika	10 h 3 min
19 Jul 2024	Froy Jarl	Breidvika	14 h 8 min
18 Jul 2024	Froy Jarl	Breidvika	12 h 17 min
19 Jun 2024	Freyja	Flatøyfjorden	39 min
19 Jun 2024	Freyja	Flatøyfjorden	4 h 18 min
18 Jun 2024	Freyja	Flatøyfjorden	12 h 7 min
17 Jun 2024	Freyja	Flatøyfjorden	19 h 47 min
16 Jun 2024	Freyja	Flatøyfjorden	19 h 27 min
15 Jun 2024	Freyja	Flatøyfjorden	16 h 56 min
14 Jun 2024	Freyja	Flatøyfjorden	2 h 29 min
14 Jun 2024	Froy Jarl	Breidvika	45 min
13 Jun 2024	Freyja	Flatøyfjorden	29 h 31 min
13 Jun 2024	Froy Jarl	Breidvika	19 h 9 min
13 Jun 2024	Freyja	Flatøyfjorden	30 min
12 Jun 2024	Froy Jarl	Breidvika	19 h 16 min
12 Jun 2024	Freyja	Flatøyfjorden	23 h 31 min
11 Jun 2024	Freyja	Flatøyfjorden	8 h 24 min
11 Jun 2024	Freyja	Flatøyfjorden	3 h 6 min
10 Jun 2024	Freyja	Flatøyfjorden	3 h 44 min

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

Licences

Site MAB: 7,020 tonnes

Licence	Type	Capacity	Holder
ST B 0001	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Mowi Seawater Norway AS
ST B 0002	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Mowi Seawater Norway AS
ST F 0016	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Mowi Seawater Norway AS
ST F 0020	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Mowi Seawater Norway AS
ST H 0047	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Mowi Seawater Norway AS
ST O 0001	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Mowi Seawater Norway AS
ST O 0002	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Mowi Seawater Norway AS
ST O 0005	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Mowi Seawater Norway AS
ST O 0006	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Mowi Seawater Norway AS

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