Kvernavika

Site 24975 · Tysnes municipality · Production area 3, Karmøy til Sotra

Status unknown: not reported in week 39Operated by Lerøy Vest Sjø AS · group Lerøy Seafood Group

unknownAdult female lice per fishNo count in week 39. Latest: 0.49 in week 36, 2026Week 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026

1Weeks above the limit in 2026of 36 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026

15Lice treatments in 2026Latest: Thermal delousing, week 33, 20262026 · Norwegian Food Safety Authority · updated 01 Oct 2026

0Active disease casesNone active · 1 earlierRegister since 26 Nov 2024 · Norwegian Food Safety Authority · updated 01 Oct 2026

12Wellboat visits in 2026by 2 different vessels · latest 11 Aug 2026Derived from AIS · Norwegian Coastal Administration (AIS) · updated 01 Oct 2026

1Escapes reportedNumber unknown, July 2024Since 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	0.09	0.5	Below the limit
2	0.12	0.5	Below the limit
3	0.16	0.5	Below the limit
4	0.24	0.5	Below the limit
5	0.34	0.5	Below the limit
6	0.22	0.5	Below the limit
7	0.01	0.5	Below the limit
8	0.02	0.5	Below the limit
9	0.02	0.5	Below the limit
10	0.03	0.5	Below the limit
11	0.03	0.5	Below the limit
12	0.05	0.5	Below the limit
13	0.06	0.5	Below the limit
14	0.07	0.5	Below the limit
15	0.08	0.5	Below the limit
16	0.10	0.2	Below the limit
17	0.18	0.2	Near the limit
18	0.07	0.2	Below the limit
19	0.00	0.2	Below the limit
20	0.00	0.2	Below the limit
21	0.01	0.2	Below the limit
22	0.02	0.5	Below the limit
23	0.03	0.5	Below the limit
24	0.10	0.5	Below the limit
25	0.30	0.5	Below the limit
26	0.47	0.5	Near the limit
27	0.59	0.5	Above the limit
28	0.18	0.5	Below the limit
29	0.08	0.5	Below the limit
30	0.06	0.5	Below the limit
31	0.26	0.5	Below the limit
32	0.22	0.5	Below the limit
33	0.33	0.5	Below the limit
34	0.29	0.5	Below the limit
35	0.36	0.5	Below the limit
36	0.49	0.5	Near the limit
37	unknown	0.5	Not reported
38	unknown	0.5	Reported without a count
39	unknown	0.5	Not reported

Earlier years

20255 of 20 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	unknown	0.5	Not reported
31	unknown	0.5	Not reported
32	unknown	0.5	Reported without a count
33	0.00	0.5	Below the limit
34	0.01	0.5	Below the limit
35	0.07	0.5	Below the limit
36	0.37	0.5	Below the limit
37	0.55	0.5	Above the limit
38	0.86	0.5	Above the limit
39	0.32	0.5	Below the limit
40	0.30	0.5	Below the limit
41	0.34	0.5	Below the limit
42	0.71	0.5	Above the limit
43	0.25	0.5	Below the limit
44	0.30	0.5	Below the limit
45	0.51	0.5	Above the limit
46	0.62	0.5	Above the limit
47	0.16	0.5	Below the limit
48	0.25	0.5	Below the limit
49	0.40	0.5	Near the limit
50	0.49	0.5	Near the limit
51	0.12	0.5	Below the limit
52	0.13	0.5	Below the limit

20240 of 40 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	0.44	0.5	Near the limit
2	0.37	0.5	Below the limit
3	0.05	0.5	Below the limit
4	0.01	0.5	Below the limit
5	0.09	0.5	Below the limit
6	0.04	0.5	Below the limit
7	0.13	0.5	Below the limit
8	0.14	0.5	Below the limit
9	0.05	0.5	Below the limit
10	0.03	0.5	Below the limit
11	0.13	0.5	Below the limit
12	0.11	0.5	Below the limit
13	0.21	0.5	Below the limit
14	0.08	0.5	Below the limit
15	0.09	0.5	Below the limit
16	0.02	0.2	Below the limit
17	0.00	0.2	Below the limit
18	0.00	0.2	Below the limit
19	0.02	0.2	Below the limit
20	0.02	0.2	Below the limit
21	0.03	0.2	Below the limit
22	0.17	0.5	Below the limit
23	0.42	0.5	Near the limit
24	0.05	0.5	Below the limit
25	0.01	0.5	Below the limit
26	0.00	0.5	Below the limit
27	0.14	0.5	Below the limit
28	0.41	0.5	Near the limit
29	0.20	0.5	Below the limit
30	0.43	0.5	Near the limit
31	0.32	0.5	Below the limit
32	0.38	0.5	Below the limit
33	0.09	0.5	Below the limit
34	0.12	0.5	Below the limit
35	0.12	0.5	Below the limit
36	0.19	0.5	Below the limit
37	0.40	0.5	Near the limit
38	0.40	0.5	Near the limit
39	0.28	0.5	Below the limit
40	0.07	0.5	Below the limit
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

20232 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	0.03	0.5	Below the limit
41	0.06	0.5	Below the limit
42	0.17	0.5	Below the limit
43	1.12	0.5	Above the limit
44	1.11	0.5	Above the limit
45	0.08	0.5	Below the limit
46	0.04	0.5	Below the limit
47	0.01	0.5	Below the limit
48	0.05	0.5	Below the limit
49	0.04	0.5	Below the limit
50	0.10	0.5	Below the limit
51	0.23	0.5	Below the limit
52	0.40	0.5	Near the limit

Treatments

Norwegian Food Safety Authority

Week 33, 2026
Thermal delousing1 pen
Week 32, 2026
Thermal delousing1 pen
Week 28, 2026
Mechanical delousing3 pens
Week 18, 2026
Freshwater treatment, Thermal delousing12 pens

Show all 22

Week 7, 2026
Thermal delousing, Freshwater treatment2 pens
Week 6, 2026
Thermal delousing, Freshwater treatment10 pens
Week 52, 2025
Freshwater treatment, Thermal delousing2 pens
Week 51, 2025
Freshwater treatment, Thermal delousingWhole site
Week 47, 2025
Freshwater treatment, Thermal delousing8 pens
Week 46, 2025
Freshwater treatment, Thermal delousing4 pens
Week 44, 2025
Thermal delousing2 pens
Week 39, 2025
Thermal delousing, Freshwater treatment8 pens
Week 33, 2024
Freshwater treatment, Thermal delousingWhole site
Week 32, 2024
Freshwater treatment, Thermal delousing8 pens
Week 29, 2024
Mechanical delousingWhole site
Week 24, 2024
Freshwater treatment, Thermal delousing6 pens
Week 23, 2024
Freshwater treatment, Thermal delousing4 pens
Week 15, 2024
Thermal delousing, Freshwater treatment6 pens
Week 14, 2024
Thermal delousing, Freshwater treatment4 pens
Week 3, 2024
Thermal delousing, Freshwater treatment4 pens
Week 1, 2024
Freshwater treatment, Thermal delousing6 pens
Week 45, 2023
Other treatmentWhole site · Kombi - FV og Thermisk

Disease

Norwegian Food Safety Authority

01 May 2025
Pancreas disease (PD): closedSubtype SAV3 · started 04 Sep 2024 · Norwegian Food Safety Authority

Escapes

Directorate of Fisheries

19 Jul 2024
Escape of salmon, number unknownCause: Ukjent · recaptured 1 · Directorate of Fisheries

Wellboat visits

12 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
11 Aug 2026	Seihav	Gulholmen	5 h 22 min
10 Aug 2026	Seihav	Gulholmen	38 h 18 min
09 Aug 2026	Seihav	Gulholmen	17 h 29 min
08 Aug 2026	Seihav	Gulholmen	7 h 33 min
03 May 2026	Seigrunn	Sagen 2	8 h 45 min
02 May 2026	Seigrunn	Sagen 2	19 h 12 min
01 May 2026	Seigrunn	Sagen 2	11 h 9 min
30 Apr 2026	Seigrunn	Sagen 2	10 h 5 min
09 Feb 2026	Seigrunn	Sagen 2	10 h 46 min
08 Feb 2026	Seigrunn	Sagen 2	14 h 41 min
07 Feb 2026	Seigrunn	Sagen 2	18 h 0 min
06 Feb 2026	Seigrunn	Sagen 2	14 h 6 min

Show 40 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
22 Dec 2025	Hordagut	Vadholmen	8 h 18 min
21 Dec 2025	Hordagut	Vadholmen	7 h 5 min
20 Dec 2025	Hordagut	Vadholmen	8 h 23 min
18 Nov 2025	Seigrunn	Sagen 2	18 h 0 min
17 Nov 2025	Seigrunn	Sagen 2	9 h 8 min
16 Nov 2025	Seigrunn	Sagen 2	8 h 5 min
15 Nov 2025	Seigrunn	Sagen 2	5 h 24 min
24 Sep 2025	Seigrunn	Sagen 2	8 h 6 min
23 Sep 2025	Seigrunn	Sagen 2	3 h 9 min
23 Sep 2025	Seifjell	Drøno	1 h 4 min
23 Sep 2025	Seigrunn	Sagen 2	13 h 31 min
22 Sep 2025	Seigrunn	Sagen 2	9 h 46 min
08 Aug 2025	Mowi Star	Matløyso	1 h 8 min
07 Aug 2025	Mowi Star	Matløyso	55 min
04 Aug 2025	Seifjell	Djupevika	1 h 30 min
23 Sep 2024	Seihav	Storevikholmen	12 h 28 min
22 Sep 2024	Seihav	Storevikholmen	19 h 19 min
21 Sep 2024	Seihav	Storevikholmen	15 h 41 min
17 Aug 2024	Seihav	Storevikholmen	17 h 35 min
08 Aug 2024	Seihav	Matløyso	42 min
08 Aug 2024	Horda Pioneer	Sagen 2	19 h 12 min
08 Aug 2024	Seihav	Matløyso	15 h 13 min
06 Aug 2024	Horda Pioneer	Sagen 2	23 h 44 min
06 Aug 2024	Seihav	Matløyso	43 h 57 min
05 Aug 2024	Horda Pioneer	Sagen 2	9 h 48 min
15 Jun 2024	Seihav	Sagen 2	30 h 33 min
14 Jun 2024	Seihav	Sagen 2	17 h 59 min
13 Jun 2024	Seihav	Sagen 2	16 h 47 min
08 Jun 2024	Seihav	Sagen 2	23 h 42 min
07 Jun 2024	Seihav	Sagen 2	9 h 35 min
15 Apr 2024	Seihav	Storevikholmen	23 h 2 min
15 Apr 2024	Seihav	Storevikholmen	1 h 6 min
14 Apr 2024	Seihav	Storevikholmen	18 h 2 min
13 Apr 2024	Seihav	Storevikholmen	4 h 11 min
02 Apr 2024	Seihav	Sagen 2	18 h 53 min
01 Apr 2024	Seihav	Sagen 2	8 h 26 min
06 Mar 2024	Navoey	Langøyna Ø	48 min
05 Mar 2024	Navoey	Langøyna Ø	2 h 47 min
20 Jan 2024	Seihav	Ramsøy S	38 h 59 min
04 Jan 2024	Seihav	Storebø	76 h 36 min

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

Licences

Site MAB: 3,900 tonnes

Licence	Type	Capacity	Holder
H AV 0065	Undervisning / matfiskSalmon, Rainbow trout, Trout	780 t	Vestland Fylkeskommune
H FE 0001	Kommersiell / matfiskSalmon, Rainbow trout, Trout	689 t	Lerøy Vest Sjø AS
H FE 0002	Kommersiell / matfiskSalmon, Rainbow trout, Trout	689 t	Lerøy Vest Sjø AS
H FE 0003	Kommersiell / matfiskSalmon, Rainbow trout, Trout	689 t	Lerøy Vest Sjø AS
H T 0005	Kommersiell / matfiskSalmon, Rainbow trout, Trout	689 t	Lerøy Vest Sjø AS
H T 0015	Kommersiell / matfiskSalmon, Rainbow trout, Trout	689 t	Lerøy Vest Sjø AS
H T 0018	Kommersiell / matfiskSalmon, Rainbow trout, Trout	345 t	Lerøy Vest Sjø AS

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