Austvika

Site 26795 · Flatanger municipality · Production area 7, Nord-Trøndelag med Bindal

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

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

2Lice treatments in 2026Latest: Thermal delousing, week 4, 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 reported52,743 salmon, February 2018Since 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	0.31	0.5	Below the limit
2	0.43	0.5	Near the limit
3	0.37	0.5	Below the limit
4	0.04	0.5	Below the limit
5	0.22	0.5	Below the limit
6	0.20	0.5	Below the limit
7	0.24	0.5	Below the limit
8	0.20	0.5	Below the limit
9	0.25	0.5	Below the limit
10	0.25	0.5	Below the limit
11	0.25	0.5	Below the limit
12	0.26	0.5	Below the limit
13	0.29	0.5	Below the limit
14	0.30	0.5	Below the limit
15	0.21	0.5	Below the limit
16	0.16	0.2	Below the limit
17	0.00	0.2	Below the limit
18	0.00	0.2	Below the limit
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	0.00	0.5	Below the limit
37	0.00	0.5	Below the limit
38	0.00	0.5	Below the limit
39	0.00	0.5	Below the limit

Earlier years

20252 of 52 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	0.00	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	0.01	0.5	Below the limit
9	0.10	0.5	Below the limit
10	0.02	0.5	Below the limit
11	0.05	0.5	Below the limit
12	0.02	0.5	Below the limit
13	0.01	0.5	Below the limit
14	0.04	0.5	Below the limit
15	0.11	0.5	Below the limit
16	0.10	0.2	Below the limit
17	0.07	0.2	Below the limit
18	0.04	0.2	Below the limit
19	0.06	0.2	Below the limit
20	0.06	0.2	Below the limit
21	0.04	0.2	Below the limit
22	0.06	0.5	Below the limit
23	0.03	0.5	Below the limit
24	0.04	0.5	Below the limit
25	0.06	0.5	Below the limit
26	0.09	0.5	Below the limit
27	0.30	0.5	Below the limit
28	0.38	0.5	Below the limit
29	0.11	0.5	Below the limit
30	0.11	0.5	Below the limit
31	0.34	0.5	Below the limit
32	0.11	0.5	Below the limit
33	0.37	0.5	Below the limit
34	0.47	0.5	Near the limit
35	0.31	0.5	Below the limit
36	0.38	0.5	Below the limit
37	0.41	0.5	Near the limit
38	0.10	0.5	Below the limit
39	0.26	0.5	Below the limit
40	0.76	0.5	Above the limit
41	2.45	0.5	Above the limit
42	0.42	0.5	Near the limit
43	0.28	0.5	Below the limit
44	0.13	0.5	Below the limit
45	0.05	0.5	Below the limit
46	0.25	0.5	Below the limit
47	0.33	0.5	Below the limit
48	0.40	0.5	Near the limit
49	0.43	0.5	Near the limit
50	0.16	0.5	Below the limit
51	0.28	0.5	Below the limit
52	0.33	0.5	Below the limit

20240 of 11 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	0.26	0.5	Below the limit
2	0.27	0.5	Below the limit
3	0.39	0.5	Below the limit
4	0.32	0.5	Below the limit
5	0.40	0.5	Near the limit
6	0.44	0.5	Near the limit
7	0.46	0.5	Near the limit
8	unknown	0.5	Reported without a count
9	unknown	0.5	Reported without a count
10	unknown	0.5	Reported without a count
11	unknown	0.5	Reported without a count
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	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

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	0.35	0.5	Below the limit
42	0.36	0.5	Below the limit
43	0.04	0.5	Below the limit
44	0.16	0.5	Below the limit
45	0.18	0.5	Below the limit
46	0.23	0.5	Below the limit
47	0.34	0.5	Below the limit
48	0.20	0.5	Below the limit
49	0.13	0.5	Below the limit
50	0.19	0.5	Below the limit
51	0.22	0.5	Below the limit
52	0.21	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 4, 2026
Thermal delousing4 pens
Week 3, 2026
Thermal delousing3 pens
Week 50, 2025
Mechanical delousing6 pens
Week 44, 2025
Mechanical delousingWhole site

Show all 17

Week 42, 2025
Mechanical delousingWhole site
Week 41, 2025
Mechanical delousing4 pens
Week 38, 2025
Mechanical delousingWhole site
Week 34, 2025
Mechanical delousingWhole site
Week 29, 2025
Mechanical delousingWhole site
Week 27, 2025
Thermal delousing6 pens
Week 12, 2025
Medicinal feed4 pens · Emamectin benzoat
Week 11, 2025
Medicinal feedWhole site · Emamectin benzoat
Week 10, 2025
Medicinal feed3 pens · Emamectin benzoat
Week 47, 2023
Thermal delousingWhole site
Week 43, 2023
Mechanical delousing4 pens
Week 42, 2023
Mechanical delousing1 pen
Week 40, 2023
Mechanical delousing2 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

14 Feb 2018
52,743 salmon escapedDirectorate 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 Havsoy	Mulnesodden	4 h 29 min
24 Aug 2026	Ronja Havsoy	Mulnesodden	2 h 18 min
24 Aug 2026	Ronja Havsoy	Mulnesodden	3 h 4 min
27 Apr 2026	Ronja Boroy	Hestøy	1 h 54 min
24 Apr 2026	Ronja Boroy	Hestøy	2 h 0 min
21 Apr 2026	Ronja Boroy	Hestøy	2 h 28 min
17 Apr 2026	Ronja Boroy	Hestøy	2 h 43 min
31 Mar 2026	Ro North	Fleina	1 h 30 min
31 Mar 2026	Ro North	Fleina	30 min
19 Jan 2026	Ronja Boroy	Brattholmen	31 h 53 min
18 Jan 2026	Ronja Boroy	Brattholmen	15 h 51 min
10 Dec 2025	Ronja Heroy	Skarvhammaren	20 h 29 min

Show 28 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
09 Dec 2025	Ronja Heroy	Skarvhammaren	24 h 55 min
28 Oct 2025	Ronja Heroy	Geitryggen	36 h 27 min
16 Oct 2025	Ronja Heroy	Bjørgan	9 h 16 min
15 Oct 2025	Ronja Heroy	Bjørgan	3 h 26 min
07 Oct 2025	Ronja Heroy	Almurden	11 h 58 min
18 Sep 2025	Ronja Heroy	Nordfugløy	30 h 55 min
08 Sep 2025	Ronja Boroy	Marøya	4 h 31 min
07 Sep 2025	Ronja Boroy	Marøya	22 h 51 min
22 Aug 2025	Ronja Boroy	Kjelneset	32 h 16 min
03 Aug 2025	Ronja Heroy	Tårnvika	29 h 27 min
17 Jul 2025	Ronja Heroy	Almurden	18 h 30 min
16 Jul 2025	Ronja Heroy	Almurden	13 h 21 min
04 Jul 2025	Ro North	Almurden	27 h 39 min
08 Dec 2024	Ronja Vita	Sandskjæret	5 h 30 min
04 Dec 2024	Ronja Vita	Sandskjæret	8 h 19 min
03 Dec 2024	Ronja Vita	Sandskjæret	4 h 21 min
30 Nov 2024	Ronja Vita	Sandskjæret	2 h 36 min
30 Nov 2024	Ronja Vita	Sandskjæret	3 h 46 min
10 Mar 2024	Ro North	Hestøy	1 h 30 min
09 Mar 2024	Ronja Havsoy	Hestøy	4 h 16 min
06 Mar 2024	Ronja Havsoy	Hestøy	2 h 11 min
03 Mar 2024	Ronja Havsoy	Hestøy	3 h 12 min
19 Feb 2024	Ro Sailor	Hestøy	1 h 50 min
18 Feb 2024	Ro Sailor	Hestøy	1 h 20 min
05 Feb 2024	Ronja Havsoy	Hestøy	2 h 19 min
30 Jan 2024	Ro Sailor	Hestøy	1 h 57 min
30 Jan 2024	Ronja Heroy	Hestøy	2 h 44 min
24 Jan 2024	Ronja Heroy	Hestøy	3 h 8 min

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

Licences

Site MAB: 5,460 tonnes

Licence	Type	Capacity	Holder
NT F 0001	Kommersiell / matfiskSalmon, Rainbow trout, Trout	804 t	Mowi Seawater Norway AS
NT F 0005	Kommersiell / matfiskSalmon, Rainbow trout, Trout	804 t	Mowi Seawater Norway AS
NT F 0007	Kommersiell / matfiskSalmon, Rainbow trout, Trout	804 t	Mowi Seawater Norway AS
NT F 0008	Kommersiell / matfiskSalmon, Rainbow trout, Trout	804 t	Mowi Seawater Norway AS
NT F 0013	Kommersiell / matfiskSalmon, Rainbow trout, Trout	804 t	Mowi Seawater Norway AS

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