Gnarnesvika

Site 40297 · Kinn municipality · Production area 4, Nordhordland til Stadt

Below the lice limit, week 39Operated by Marø Havbruk A/s · group unknown

0.02Adult 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 24 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026

6Lice treatments in 2026Latest: Thermal delousing, week 37, 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

4Wellboat visits in 2026by 2 different vessels · 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

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Adult female lice per fish per week, 2026
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	0.00	0.2	Below the limit
18	0.00	0.2	Below the limit
19	0.00	0.2	Below the limit
20	0.00	0.2	Below the limit
21	0.00	0.2	Below the limit
22	0.00	0.5	Below the limit
23	0.00	0.5	Below the limit
24	0.00	0.5	Below the limit
25	0.07	0.5	Below the limit
26	0.05	0.5	Below the limit
27	0.03	0.5	Below the limit
28	0.25	0.5	Below the limit
29	0.01	0.5	Below the limit
30	0.03	0.5	Below the limit
31	0.01	0.5	Below the limit
32	0.09	0.5	Below the limit
33	0.03	0.5	Below the limit
34	0.06	0.5	Below the limit
35	0.07	0.5	Below the limit
36	0.15	0.5	Below the limit
37	0.00	0.5	Below the limit
38	0.00	0.5	Below the limit
39	0.02	0.5	Below the limit
40	0.05	0.5	Below the limit

Earlier years

20250 of 25 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	0.21	0.5	Below the limit
2	0.17	0.5	Below the limit
3	0.47	0.5	Near the limit
4	0.04	0.5	Below the limit
5	0.14	0.5	Below the limit
6	0.31	0.5	Below the limit
7	0.24	0.5	Below the limit
8	0.08	0.5	Below the limit
9	0.11	0.5	Below the limit
10	0.14	0.5	Below the limit
11	0.16	0.5	Below the limit
12	0.26	0.5	Below the limit
13	0.29	0.5	Below the limit
14	0.00	0.5	Below the limit
15	0.00	0.5	Below the limit
16	0.00	0.2	Below the limit
17	0.05	0.2	Below the limit
18	0.03	0.2	Below the limit
19	0.01	0.2	Below the limit
20	0.04	0.2	Below the limit
21	0.03	0.2	Below the limit
22	0.05	0.5	Below the limit
23	0.15	0.5	Below the limit
24	0.16	0.5	Below the limit
25	0.10	0.5	Below the limit
26	unknown	0.5	Not reported
27	unknown	0.5	Reported without a count
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

20240 of 34 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	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	Reported without a count
19	0.00	0.2	Below the limit
20	0.00	0.2	Below the limit
21	0.00	0.2	Below the limit
22	0.00	0.5	Below the limit
23	0.00	0.5	Below the limit
24	0.00	0.5	Below the limit
25	0.00	0.5	Below the limit
26	0.00	0.5	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	0.00	0.5	Below the limit
33	0.00	0.5	Below the limit
34	0.00	0.5	Below the limit
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
40	0.00	0.5	Below the limit
41	0.03	0.5	Below the limit
42	0.01	0.5	Below the limit
43	0.13	0.5	Below the limit
44	0.19	0.5	Below the limit
45	0.19	0.5	Below the limit
46	0.33	0.5	Below the limit
47	0.13	0.5	Below the limit
48	0.28	0.5	Below the limit
49	0.08	0.5	Below the limit
50	0.06	0.5	Below the limit
51	0.10	0.5	Below the limit
52	0.08	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 37, 2026
Freshwater treatment, Thermal delousingWhole site
Week 29, 2026
Thermal delousing, Freshwater treatment4 pens
Week 27, 2026
Medicinal feedEmamectin benzoat
Week 26, 2026
Medicinal feedEmamectin benzoat

Show all 8

Week 14, 2025
Freshwater treatment, Thermal delousingWhole site
Week 8, 2025
Freshwater treatment, Thermal delousing2 pens
Week 4, 2025
Thermal delousing, Freshwater treatment4 pens
Week 47, 2024
Thermal delousing, Freshwater treatment4 pens

Disease

Norwegian Food Safety Authority

08 Sep 2025
Pancreas disease (PD): closedSubtype SAV3 · started 13 Dec 2024 · Norwegian Food Safety Authority

Escapes

Directorate of Fisheries

No escapes reported from this site since 2006.

Wellboat visits

4 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	Ro Server	Marøytåa	13 h 10 min
09 Sep 2026	Ro Server	Kviteskjeret	40 min
16 Jul 2026	Ro Server	Guriøyna	8 h 56 min
27 Apr 2026	Seifjell	Hardbakkeneset	2 h 19 min
01 Jul 2025	Rostein	Kastevika	1 h 55 min
25 Jun 2025	Rostein	Porsvika	1 h 7 min
16 Jun 2025	Ro Server	Porsvika	1 h 22 min
27 May 2025	Robris	Hesteneset	1 h 11 min
26 May 2025	Robris	Hesteneset	3 h 29 min
23 Apr 2025	Rostein	Kvaløy Ø	6 h 6 min
16 Apr 2025	Robris	Hesteneset	2 h 2 min
14 Apr 2025	Robris	Hesteneset	4 h 36 min

Show 12 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
01 Apr 2025	Ro Server	Guleskjeret	12 h 28 min
31 Mar 2025	Ro Server	Guleskjeret	10 h 9 min
31 Mar 2025	Ro Venture	Oddane	34 h 58 min
24 Mar 2025	Ro Master	Instefjord	3 h 45 min
17 Feb 2025	Ro Fjell	Slettvika	9 h 46 min
20 Jan 2025	Ro Server	Garvik	13 h 48 min
20 Jan 2025	Ro Fjell	Hågardsneset	17 h 53 min
20 Jan 2025	Ro Server	Garvik	3 h 19 min
21 Nov 2024	Ro Server	Guleskjeret	17 h 54 min
21 May 2024	Navoey	Seljeset	3 h 40 min
02 May 2024	Ro Spirit	Hisdalen	11 h 26 min
02 May 2024	Robas	Hesteneset	12 h 15 min

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

Licences

Site MAB: 3,120 tonnes

Licence	Type	Capacity	Holder
SF F 0001	Kommersiell / matfiskSalmon, Rainbow trout, Trout	782 t	E. Karstensen Fiskeoppdrett AS
SF F 0007	Kommersiell / matfiskSalmon, Rainbow trout, Trout	782 t	Marø Havbruk A/s
SF F 0031	Kommersiell / matfiskSalmon, Rainbow trout, Trout	782 t	Marø Havbruk A/s
SF F 0052	Kommersiell / matfiskSalmon, Rainbow trout, Trout	782 t	E. Karstensen Fiskeoppdrett AS

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