Guriøyna

Site 32317 · Askvoll municipality · Production area 4, Nordhordland til Stadt

Below the lice limit, week 39Operated by Landøy Havbruk AS · group unknown

0.10Adult 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 39 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026

4Lice treatments in 2026Latest: Thermal delousing, week 29, 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

4Wellboat visits in 2026by 2 different vessels · latest 14 Jul 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	unknown	0.5	Not reported
2	0.30	0.5	Below the limit
3	0.42	0.5	Near the limit
4	0.45	0.5	Near the limit
5	0.01	0.5	Below the limit
6	0.03	0.5	Below the limit
7	0.05	0.5	Below the limit
8	0.12	0.5	Below the limit
9	0.15	0.5	Below the limit
10	0.15	0.5	Below the limit
11	0.27	0.5	Below the limit
12	0.28	0.5	Below the limit
13	0.35	0.5	Below the limit
14	0.33	0.5	Below the limit
15	0.01	0.5	Below the limit
16	0.01	0.2	Below the limit
17	0.01	0.2	Below the limit
18	0.01	0.2	Below the limit
19	0.03	0.2	Below the limit
20	0.06	0.2	Below the limit
21	0.07	0.2	Below the limit
22	0.08	0.5	Below the limit
23	0.10	0.5	Below the limit
24	0.25	0.5	Below the limit
25	0.27	0.5	Below the limit
26	0.30	0.5	Below the limit
27	0.40	0.5	Near the limit
28	0.48	0.5	Near the limit
29	0.02	0.5	Below the limit
30	0.02	0.5	Below the limit
31	0.08	0.5	Below the limit
32	0.08	0.5	Below the limit
33	0.10	0.5	Below the limit
34	0.07	0.5	Below the limit
35	0.10	0.5	Below the limit
36	0.12	0.5	Below the limit
37	0.17	0.5	Below the limit
38	0.13	0.5	Below the limit
39	0.10	0.5	Below the limit
40	0.15	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	0.30	0.5	Below the limit
2	0.25	0.5	Below the limit
3	0.28	0.5	Below the limit
4	0.35	0.5	Below the limit
5	0.45	0.5	Near the limit
6	0.05	0.5	Below the limit
7	0.27	0.5	Below the limit
8	0.26	0.5	Below the limit
9	0.23	0.5	Below the limit
10	0.30	0.5	Below the limit
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	0.00	0.5	Below the limit
39	0.00	0.5	Below the limit
40	0.00	0.5	Below the limit
41	0.00	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	0.00	0.5	Below the limit
48	0.05	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	0.22	0.5	Below the limit

20240 of 39 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	0.45	0.5	Near the limit
2	0.05	0.5	Below the limit
3	0.00	0.5	Below the limit
4	unknown	0.5	Reported without a count
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	0.00	0.5	Below the limit
26	0.00	0.5	Below the limit
27	0.05	0.5	Below the limit
28	0.05	0.5	Below the limit
29	0.05	0.5	Below the limit
30	0.05	0.5	Below the limit
31	0.07	0.5	Below the limit
32	0.12	0.5	Below the limit
33	0.12	0.5	Below the limit
34	0.15	0.5	Below the limit
35	0.12	0.5	Below the limit
36	0.15	0.5	Below the limit
37	0.15	0.5	Below the limit
38	0.20	0.5	Below the limit
39	0.25	0.5	Below the limit
40	0.30	0.5	Below the limit
41	0.25	0.5	Below the limit
42	0.00	0.5	Below the limit
43	0.00	0.5	Below the limit
44	0.02	0.5	Below the limit
45	0.02	0.5	Below the limit
46	0.12	0.5	Below the limit
47	0.17	0.5	Below the limit
48	0.22	0.5	Below the limit
49	0.30	0.5	Below the limit
50	0.32	0.5	Below the limit
51	0.35	0.5	Below the limit
52	0.37	0.5	Below the limit

20230 of 4 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	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	0.25	0.5	Below the limit
50	0.27	0.5	Below the limit
51	0.32	0.5	Below the limit
52	0.45	0.5	Near the limit

Treatments

Norwegian Food Safety Authority

Week 29, 2026
Freshwater treatment, Thermal delousingWhole site
Week 26, 2026
Thermal delousing1 pen
Week 15, 2026
Thermal delousingWhole site
Week 5, 2026
Thermal delousingWhole site

Show all 9

Week 46, 2025
Medicinal feedWhole site · Emamectin benzoat
Week 6, 2025
Medicinal bathWhole site · Azamethiphos
Week 42, 2024
Thermal delousingWhole site
Week 22, 2024
Medicinal feedWhole site · Emamectin benzoat
Week 2, 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

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
14 Jul 2026	Ro Server	Skorva	11 h 33 min
14 Jul 2026	Firda Savior	Leiholmane	22 h 21 min
23 Jun 2026	Firda Savior	no other farm	18 h 47 min
28 Jan 2026	Ro Server	Juvika	8 h 43 min
01 Dec 2025	Rohav	Austneståa	4 h 57 min
08 Sep 2025	Langsund	Austneståa	1 h 46 min
17 Mar 2025	Ro Arctic	Garvik	1 h 12 min
03 Mar 2025	Ro Server	Klavelandet	1 h 4 min
17 Feb 2025	Ro Chief	Lindeneset	1 h 31 min
30 Jan 2025	Ro Server	Hesteneset	5 h 57 min
15 Oct 2024	Ro Server	Guleskjeret	6 h 10 min
12 Apr 2024	Ro Chief	Gråtnes	3 h 1 min

Show 4 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
29 Jan 2024	Rohav	Mjølsvik	1 h 37 min
22 Jan 2024	Rohav	Skreda	53 min
04 Jan 2024	Ro Server	Furevika	2 h 58 min
02 Jan 2024	Rohav	Hesteneset	1 h 37 min

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

Who has reported

The companies that have submitted lice counts for this site, with the first and last week.

Company	From	To
Landøy Fiskeoppdrett AS	Week 49, 2023	Week 39, 2025
Landøy Havbruk AS	Week 1, 2025	Week 40, 2026

Source: Norwegian Food Safety Authority (organisation number on each lice report)

Licences

Site MAB: 1,560 tonnes

Licence	Type	Capacity	Holder
SF A 0006	Kommersiell / matfiskSalmon, Rainbow trout, Trout	648 t	Landøy Havbruk AS
SF A 0026	Kommersiell / matfiskSalmon, Rainbow trout, Trout	648 t	Landøy Havbruk AS
SF A 0032	Kommersiell / matfiskSalmon, Rainbow trout, Trout	648 t	Landøy Havbruk AS

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