Karvika

Site 10804 · Kvænangen municipality · Production area 11, Kvaløya til Loppa

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

3Lice treatments in 2026Latest: Thermal delousing, week 31, 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

9Wellboat visits in 2026by 5 different vessels · latest 09 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 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	0.03	0.5	Below the limit
2	0.03	0.5	Below the limit
3	0.04	0.5	Below the limit
4	0.10	0.5	Below the limit
5	0.07	0.5	Below the limit
6	0.04	0.5	Below the limit
7	0.04	0.5	Below the limit
8	0.06	0.5	Below the limit
9	0.07	0.5	Below the limit
10	0.09	0.5	Below the limit
11	0.04	0.5	Below the limit
12	0.06	0.5	Below the limit
13	0.06	0.5	Below the limit
14	0.09	0.5	Below the limit
15	0.03	0.5	Below the limit
16	0.07	0.5	Below the limit
17	0.02	0.5	Below the limit
18	0.07	0.5	Below the limit
19	0.01	0.5	Below the limit
20	0.05	0.5	Below the limit
21	0.03	0.2	Below the limit
22	0.08	0.2	Below the limit
23	0.10	0.2	Below the limit
24	0.05	0.2	Below the limit
25	0.13	0.2	Below the limit
26	0.07	0.2	Below the limit
27	0.00	0.5	Below the limit
28	0.01	0.5	Below the limit
29	0.03	0.5	Below the limit
30	0.07	0.5	Below the limit
31	0.07	0.5	Below the limit
32	0.02	0.5	Below the limit
33	0.18	0.5	Below the limit
34	0.37	0.5	Below the limit
35	0.39	0.5	Below the limit
36	0.00	0.5	Below the limit
37	0.00	0.5	Below the limit
38	unknown	0.5	Not reported
39	0.00	0.5	Below the limit

Earlier years

20250 of 31 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	0.5	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	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	0.00	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	0.00	0.5	Below the limit
32	0.08	0.5	Below the limit
33	0.05	0.5	Below the limit
34	0.15	0.5	Below the limit
35	0.30	0.5	Below the limit
36	0.17	0.5	Below the limit
37	0.01	0.5	Below the limit
38	0.01	0.5	Below the limit
39	0.06	0.5	Below the limit
40	0.04	0.5	Below the limit
41	0.12	0.5	Below the limit
42	0.13	0.5	Below the limit
43	0.35	0.5	Below the limit
44	0.07	0.5	Below the limit
45	0.06	0.5	Below the limit
46	0.16	0.5	Below the limit
47	0.25	0.5	Below the limit
48	0.04	0.5	Below the limit
49	0.24	0.5	Below the limit
50	0.30	0.5	Below the limit
51	0.19	0.5	Below the limit
52	0.26	0.5	Below the limit

20240 of 26 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	0.03	0.5	Below the limit
2	0.02	0.5	Below the limit
3	unknown	0.5	Reported without a count
4	0.03	0.5	Below the limit
5	unknown	0.5	Reported without a count
6	0.11	0.5	Below the limit
7	unknown	0.5	Reported without a count
8	0.04	0.5	Below the limit
9	unknown	0.5	Reported without a count
10	0.05	0.5	Below the limit
11	unknown	0.5	Reported without a count
12	0.13	0.5	Below the limit
13	unknown	0.5	Reported without a count
14	0.10	0.5	Below the limit
15	unknown	0.5	Reported without a count
16	0.06	0.5	Below the limit
17	unknown	0.5	Reported without a count
18	0.08	0.5	Below the limit
19	unknown	0.5	Reported without a count
20	0.08	0.5	Below the limit
21	0.06	0.2	Below the limit
22	0.04	0.2	Below the limit
23	0.06	0.2	Below the limit
24	0.04	0.2	Below the limit
25	0.07	0.2	Below the limit
26	0.06	0.2	Below the limit
27	0.10	0.5	Below the limit
28	0.08	0.5	Below the limit
29	0.04	0.5	Below the limit
30	0.08	0.5	Below the limit
31	0.11	0.5	Below the limit
32	0.14	0.5	Below the limit
33	0.19	0.5	Below the limit
34	0.17	0.5	Below the limit
35	0.30	0.5	Below the limit
36	unknown	0.5	Reported without a count
37	unknown	0.5	Reported without a count
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 10 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	0.01	0.5	Below the limit
44	0.02	0.5	Below the limit
45	0.03	0.5	Below the limit
46	0.03	0.5	Below the limit
47	0.04	0.5	Below the limit
48	0.03	0.5	Below the limit
49	0.01	0.5	Below the limit
50	0.01	0.5	Below the limit
51	0.02	0.5	Below the limit
52	0.03	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 31, 2026
Thermal delousingWhole site
Week 27, 2026
Mechanical delousing2 pens
Week 1, 2026
Mechanical delousingWhole site
Week 48, 2025
Thermal delousingWhole site

Show all 9

Week 44, 2025
Thermal delousingWhole site
Week 37, 2025
Thermal delousingWhole site
Week 35, 2025
Medicinal feedWhole site · Emamectin benzoat
Week 34, 2025
Medicinal feedWhole site · Emamectin benzoat
Week 32, 2024
Thermal delousingWhole site

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

9 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
09 Sep 2026	Ro Master	Holmen	1 h 36 min
17 Aug 2026	Reisa	Skjervøy	1 h 52 min
10 Aug 2026	Reisa	Skjervøy	46 min
01 Aug 2026	Ro North	Hestøy	18 h 5 min
31 Jul 2026	Ro North	Hestøy	12 h 11 min
02 Jul 2026	Ronja Heroy	Rakkenes	10 h 5 min
28 Jun 2026	Ronja Heroy	Rakkenes	1 h 4 min
27 Jun 2026	Ronja Heroy	Rakkenes	3 h 15 min
01 May 2026	Ronja Havsoy	Hestøy	1 h 55 min
28 Nov 2025	Ro North	Hundbergan	7 h 19 min
27 Nov 2025	Ro North	Hundbergan	1 h 29 min
27 Nov 2025	Ro North	Hundbergan	53 min

Show 6 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
26 Nov 2025	Ro North	Hundbergan	7 h 54 min
26 Nov 2025	Ro North	Hundbergan	3 h 18 min
29 Oct 2025	Ronja Boroy	Hundbergan	2 h 56 min
09 Sep 2025	Ro North	Kviteberg	3 h 45 min
25 May 2025	Ro Sailor	Rakkenes	3 h 57 min
11 Aug 2024	Ro Fortune	Brennholmen	15 h 16 min

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

Licences

Site MAB: 2,700 tonnes

Licence	Type	Capacity	Holder
T KN 0006	Kommersiell / matfisk - (5% mtb økning)Salmon, Rainbow trout, Trout	1,116 t	Mowi Seawater Norway AS
T KN 0012	Kommersiell / matfisk - (5% mtb økning)Salmon, Rainbow trout, Trout	1,117 t	Mowi Seawater Norway AS
T KN 0015	Kommersiell / matfisk - (5% mtb økning)Salmon, Rainbow trout, Trout	1,117 t	Mowi Seawater Norway AS

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