Oløya N

Site 38797 · Frøya municipality · Production area 6, Nordmøre og Sør-Trøndelag

Status unknown: not reported in week 39Operated by Erviks Laks Og Ørret AS · group unknown

unknownAdult female lice per fishNo count in week 39. Latest: 0.19 in week 22, 2026Week 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026

0Weeks above the limit in 2026of 22 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026

1Lice treatments in 2026Latest: Mechanical delousing, week 13, 20262026 · Norwegian Food Safety Authority · updated 01 Oct 2026

1Active disease casesPD, confirmed 02 Mar 2026Register since 26 Nov 2024 · Norwegian Food Safety Authority · updated 01 Oct 2026

4Wellboat visits in 2026by 4 different vessels · latest 16 Jun 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	0.36	0.5	Below the limit
2	0.35	0.5	Below the limit
3	0.27	0.5	Below the limit
4	0.28	0.5	Below the limit
5	0.34	0.5	Below the limit
6	0.25	0.5	Below the limit
7	0.35	0.5	Below the limit
8	0.36	0.5	Below the limit
9	0.39	0.5	Below the limit
10	0.38	0.5	Below the limit
11	0.35	0.5	Below the limit
12	0.47	0.5	Near the limit
13	0.25	0.5	Below the limit
14	0.32	0.5	Below the limit
15	0.28	0.5	Below the limit
16	0.18	0.2	Near the limit
17	0.19	0.2	Near the limit
18	0.16	0.2	Below the limit
19	0.18	0.2	Near the limit
20	0.18	0.2	Near the limit
21	0.18	0.2	Near the limit
22	0.19	0.5	Below the limit
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

Earlier years

20254 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	0.00	0.5	Below the limit
9	0.00	0.5	Below the limit
10	0.00	0.5	Below the limit
11	0.01	0.5	Below the limit
12	0.01	0.5	Below the limit
13	0.01	0.5	Below the limit
14	0.03	0.5	Below the limit
15	0.02	0.5	Below the limit
16	0.02	0.2	Below the limit
17	0.04	0.2	Below the limit
18	0.08	0.2	Below the limit
19	0.09	0.2	Below the limit
20	0.06	0.2	Below the limit
21	0.08	0.2	Below the limit
22	0.07	0.5	Below the limit
23	0.07	0.5	Below the limit
24	0.08	0.5	Below the limit
25	0.10	0.5	Below the limit
26	0.28	0.5	Below the limit
27	0.29	0.5	Below the limit
28	0.26	0.5	Below the limit
29	0.34	0.5	Below the limit
30	0.41	0.5	Near the limit
31	0.38	0.5	Below the limit
32	0.25	0.5	Below the limit
33	0.37	0.5	Below the limit
34	0.42	0.5	Near the limit
35	0.98	0.5	Above the limit
36	0.48	0.5	Near the limit
37	0.28	0.5	Below the limit
38	0.37	0.5	Below the limit
39	0.41	0.5	Near the limit
40	0.45	0.5	Near the limit
41	1.67	0.5	Above the limit
42	0.98	0.5	Above the limit
43	0.42	0.5	Near the limit
44	0.38	0.5	Below the limit
45	0.42	0.5	Near the limit
46	0.45	0.5	Near the limit
47	0.41	0.5	Near the limit
48	0.38	0.5	Below the limit
49	0.48	0.5	Near the limit
50	0.85	0.5	Above the limit
51	0.28	0.5	Below the limit
52	0.31	0.5	Below the limit

20240 of 27 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	0.42	0.5	Near the limit
2	0.31	0.5	Below the limit
3	0.41	0.5	Near the limit
4	0.40	0.5	Near the limit
5	0.38	0.5	Below the limit
6	0.45	0.5	Near the limit
7	0.32	0.5	Below the limit
8	0.37	0.5	Below the limit
9	0.25	0.5	Below the limit
10	0.34	0.5	Below the limit
11	0.38	0.5	Below the limit
12	0.25	0.5	Below the limit
13	0.28	0.5	Below the limit
14	0.19	0.5	Below the limit
15	0.19	0.5	Below the limit
16	0.14	0.2	Below the limit
17	0.03	0.2	Below the limit
18	0.06	0.2	Below the limit
19	0.06	0.2	Below the limit
20	0.09	0.2	Below the limit
21	0.11	0.2	Below the limit
22	0.22	0.5	Below the limit
23	0.25	0.5	Below the limit
24	0.29	0.5	Below the limit
25	0.32	0.5	Below the limit
26	0.38	0.5	Below the limit
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	unknown	0.5	Not reported
50	unknown	0.5	Not reported
51	unknown	0.5	Not reported
52	0.00	0.5	Below the limit

20230 of 18 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
35	0.04	0.5	Below the limit
36	0.18	0.5	Below the limit
37	0.33	0.5	Below the limit
38	0.32	0.5	Below the limit
39	0.32	0.5	Below the limit
40	0.23	0.5	Below the limit
41	0.32	0.5	Below the limit
42	0.28	0.5	Below the limit
43	0.35	0.5	Below the limit
44	0.28	0.5	Below the limit
45	0.30	0.5	Below the limit
46	0.34	0.5	Below the limit
47	0.28	0.5	Below the limit
48	0.46	0.5	Near the limit
49	0.28	0.5	Below the limit
50	0.26	0.5	Below the limit
51	0.24	0.5	Below the limit
52	0.30	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 13, 2026
Mechanical delousing2 pens
Week 51, 2025
Mechanical delousing4 pens
Week 50, 2025
Mechanical delousing2 pens
Week 47, 2025
Mechanical delousing2 pens

Show all 21

Week 45, 2025
Mechanical delousing1 pen
Week 44, 2025
Mechanical delousing1 pen
Week 43, 2025
Mechanical delousing2 pens
Week 42, 2025
Mechanical delousing1 pen
Week 41, 2025
Mechanical delousing2 pens
Week 37, 2025
Mechanical delousing, Freshwater treatment7 pens
Week 34, 2025
Mechanical delousing1 pen
Week 32, 2025
Freshwater treatment, Mechanical delousing4 pens
Week 31, 2025
Mechanical delousing4 pens
Week 28, 2025
Mechanical delousing2 pens
Week 27, 2025
Mechanical delousing4 pens
Week 9, 2024
Thermal delousing1 pen
Week 49, 2023
Mechanical delousing4 pens
Week 44, 2023
Mechanical delousing4 pens
Week 41, 2023
Freshwater treatment2 pens
Week 40, 2023
Freshwater treatment2 pens
Week 39, 2023
Mechanical delousing5 pens

Disease

Norwegian Food Safety Authority

02 Mar 2026
Pancreas disease (PD): confirmedStatus: active · Subtype SAV2 · started 03 Feb 2026 · Norwegian Food Safety Authority
14 Dec 2024
Pancreas disease (PD): closedSubtype SAV2 · started 24 Apr 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
16 Jun 2026	Froy Odin	Nordskag	1 h 37 min
19 May 2026	Ronja Princess	Nordskag	1 h 22 min
21 Apr 2026	Ronja Spirit	Nordskag	1 h 41 min
12 Apr 2026	Aasvaerfjord	Nordskag	2 h 16 min
22 Oct 2025	Rostein	Breidvika	1 h 0 min
22 Oct 2025	Rostein	Breidvika	1 h 26 min
09 Sep 2025	Njord Kya	Langøya Kvaløya	22 h 32 min
08 Sep 2025	Njord Kya	Langøya Kvaløya	9 h 45 min
08 Aug 2025	Njord Kya	Flatøyan	22 h 33 min
07 Aug 2025	Njord Kya	Flatøyan	4 h 19 min
23 Jan 2025	Neptun	no other farm	10 h 5 min
18 Dec 2024	Viknatrans	Kyrøyene	2 h 51 min

Show 9 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
18 Dec 2024	Viknatrans	Kyrøyene	2 h 16 min
11 Jul 2024	Kristiansund	Nordskag	8 h 44 min
10 Jul 2024	Kristiansund	Nordskag	6 h 13 min
15 May 2024	Froy Jarl	Munkskjæra	5 h 4 min
21 Apr 2024	Froy Jarl	Flatøyan	1 h 45 min
11 Apr 2024	Froy Jarl	Ulvan	2 h 46 min
20 Mar 2024	Froy Jarl	Hendneset	1 h 40 min
26 Feb 2024	Freyja	Mannbruholmen	9 h 57 min
16 Jan 2024	Namsos	Nordskag	1 h 33 min

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

Licences

Site MAB: 2,860 tonnes

Licence	Type	Capacity	Holder
ST F 0004	Kommersiell / matfiskSalmon, Rainbow trout, Trout	1,864 t	Erviks Laks Og Ørret AS
ST F 0053	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Erviks Laks Og Ørret AS
ST F 0063	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Erviks Laks Og Ørret AS

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