Rotøy

Site 11770 · Øygarden municipality · Production area 4, Nordhordland til Stadt

Status unknown: not reported in week 39Operated by Erko Seafood AS · group unknown

unknownAdult female lice per fishNo count in week 39. Latest: 0.15 in week 37, 2026Week 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026

0Weeks above the limit in 2026of 26 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026

4Lice treatments in 2026Latest: Thermal delousing, week 34, 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

10Wellboat visits in 2026by 4 different vessels · latest 20 Aug 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	0.00	0.5	Below the limit
13	0.00	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	0.00	0.2	Below the limit
18	0.00	0.2	Below the limit
19	0.00	0.2	Below the limit
20	0.02	0.2	Below the limit
21	0.10	0.2	Below the limit
22	0.05	0.5	Below the limit
23	0.27	0.5	Below the limit
24	0.23	0.5	Below the limit
25	0.47	0.5	Near the limit
26	0.00	0.5	Below the limit
27	0.10	0.5	Below the limit
28	0.07	0.5	Below the limit
29	0.00	0.5	Below the limit
30	0.07	0.5	Below the limit
31	0.17	0.5	Below the limit
32	0.47	0.5	Near the limit
33	0.43	0.5	Near the limit
34	0.00	0.5	Below the limit
35	0.13	0.5	Below the limit
36	0.07	0.5	Below the limit
37	0.15	0.5	Below the limit
38	unknown	0.5	Not reported
39	unknown	0.5	Not reported

Earlier years

20250 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, 2025
Week	Adult female lice per fish	Lice limit	Status
1	0.47	0.5	Near the limit
2	0.45	0.5	Near the limit
3	0.49	0.5	Near the limit
4	0.42	0.5	Near the limit
5	0.33	0.5	Below the limit
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	0.05	0.5	Below the limit
25	0.22	0.5	Below the limit
26	0.45	0.5	Near the limit
27	0.04	0.5	Below the limit
28	0.04	0.5	Below the limit
29	0.02	0.5	Below the limit
30	0.02	0.5	Below the limit
31	0.06	0.5	Below the limit
32	0.48	0.5	Near the limit
33	0.02	0.5	Below the limit
34	0.07	0.5	Below the limit
35	0.23	0.5	Below the limit
36	0.27	0.5	Below the limit
37	0.48	0.5	Near the limit
38	0.05	0.5	Below the limit
39	0.42	0.5	Near the limit
40	0.37	0.5	Below the limit
41	0.48	0.5	Near the limit
42	0.18	0.5	Below the limit
43	0.37	0.5	Below the limit
44	0.15	0.5	Below the limit
45	0.07	0.5	Below the limit
46	0.08	0.5	Below the limit
47	0.17	0.5	Below the limit
48	0.28	0.5	Below the limit
49	0.30	0.5	Below the limit
50	0.36	0.5	Below the limit
51	unknown	0.5	Not reported
52	unknown	0.5	Not reported

20240 of 41 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	0.00	0.5	Below the limit
13	0.00	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	0.00	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	0.08	0.5	Below the limit
23	0.07	0.5	Below the limit
24	0.07	0.5	Below the limit
25	0.13	0.5	Below the limit
26	0.27	0.5	Below the limit
27	0.37	0.5	Below the limit
28	0.07	0.5	Below the limit
29	0.10	0.5	Below the limit
30	0.00	0.5	Below the limit
31	0.17	0.5	Below the limit
32	0.37	0.5	Below the limit
33	0.40	0.5	Near the limit
34	0.43	0.5	Near the limit
35	0.07	0.5	Below the limit
36	0.13	0.5	Below the limit
37	0.10	0.5	Below the limit
38	0.20	0.5	Below the limit
39	0.13	0.5	Below the limit
40	0.43	0.5	Near the limit
41	0.40	0.5	Near the limit
42	0.07	0.5	Below the limit
43	0.07	0.5	Below the limit
44	0.23	0.5	Below the limit
45	0.37	0.5	Below the limit
46	0.04	0.5	Below the limit
47	0.00	0.5	Below the limit
48	0.03	0.5	Below the limit
49	0.03	0.5	Below the limit
50	0.03	0.5	Below the limit
51	0.15	0.5	Below the limit
52	0.28	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 34, 2026
Freshwater treatment, Thermal delousingWhole site
Week 25, 2026
Freshwater treatment, Thermal delousingWhole site
Week 44, 2025
Thermal delousing2 pens
Week 43, 2025
Thermal delousing2 pens

Show all 17

Week 42, 2025
Thermal delousing4 pens
Week 38, 2025
Thermal delousingWhole site
Week 37, 2025
Thermal delousing1 pen
Week 33, 2025
Thermal delousingWhole site
Week 27, 2025
Thermal delousingWhole site
Week 4, 2025
Thermal delousing1 pen
Week 3, 2025
Thermal delousing1 pen
Week 46, 2024
Thermal delousingWhole site
Week 42, 2024
Thermal delousing2 pens
Week 41, 2024
Thermal delousing1 pen
Week 39, 2024
Thermal delousingWhole site
Week 35, 2024
Thermal delousing1 pen
Week 34, 2024
Thermal delousing2 pens

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

10 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
20 Aug 2026	Hordagut	Ljøsøy N	16 h 3 min
19 Aug 2026	Hordagut	Ljøsøy N	7 h 18 min
22 Jun 2026	Hauglaks	Klubben disease or zone there	7 h 8 min
21 Jun 2026	Horda Pioneer	Eidholmen disease or zone there	2 h 11 min
21 Jun 2026	Hauglaks	Klubben disease or zone there	4 h 28 min
20 Jun 2026	Horda Pioneer	Eidholmen disease or zone there	14 h 44 min
20 Jun 2026	Hauglaks	Klubben disease or zone there	19 h 20 min
20 Apr 2026	Hauglaks	Skaganeset	7 h 2 min
12 Mar 2026	Seifjell	Gangdal	1 h 3 min
11 Mar 2026	Seifjell	Gangdal	2 h 30 min
25 Dec 2025	Rostein	Kastevika	35 min
25 Dec 2025	Langsund	Kastevika	1 h 19 min

Show 38 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
20 Dec 2025	Langsund	Rindarøy	1 h 32 min
16 Dec 2025	Rostein	Kastevika	1 h 6 min
15 Dec 2025	Hauglaks	Porsvika	8 h 4 min
09 Dec 2025	Hauglaks	Skaganeset	12 h 30 min
27 Nov 2025	Robris	Mjølsvik	1 h 7 min
20 Nov 2025	Hauglaks	Skaganeset	5 h 59 min
17 Nov 2025	Hauglaks	Klubben disease or zone there	5 h 6 min
14 Nov 2025	Hauglaks	Klubben disease or zone there	1 h 2 min
12 Nov 2025	Hauglaks	Klubben disease or zone there	5 h 26 min
27 Oct 2025	Horda Pioneer	Portevika	14 h 45 min
26 Oct 2025	Horda Pioneer	Portevika	5 h 37 min
26 Oct 2025	Hauglaks	Portevika	51 h 35 min
17 Sep 2025	Hordagut	Bergadalen	6 h 56 min
16 Sep 2025	Hordagut	Bergadalen	13 h 24 min
15 Aug 2025	Horda Pioneer	Bleket	39 h 5 min
04 Jul 2025	Hordagut	Klubben disease or zone there	8 h 48 min
03 Jul 2025	Hordagut	Klubben disease or zone there	17 h 24 min
20 Apr 2025	Seifjell	Hågardsneset	1 h 15 min
19 Apr 2025	Seifjell	Hågardsneset	2 h 39 min
15 Feb 2025	Horda Pioneer	Horgesund	2 h 47 min
14 Feb 2025	Robas	Nesevågen	1 h 7 min
14 Feb 2025	Robas	Hesteneset	1 h 39 min
14 Feb 2025	Norwegian Gannet	Kjeholmen II	2 h 41 min
23 Jan 2025	Rostein	Hesteneset	56 min
20 Jan 2025	Robas	Nesevågen	41 min
20 Jan 2025	Robas	Nesevågen	1 h 7 min
17 Jan 2025	Hauglaks	no other farm	5 h 18 min
26 Nov 2024	Hauglaks	Klubben	18 h 51 min
12 Nov 2024	Horda Pioneer	Hjartholmosen	22 h 58 min
11 Nov 2024	Horda Pioneer	Hjartholmosen	1 h 36 min
16 Oct 2024	Hauglaks	Skaganeset	6 h 52 min
11 Oct 2024	Hauglaks	Skreda	3 h 50 min
28 Sep 2024	Hauglaks	Vadholmen	13 h 41 min
23 Sep 2024	Hauglaks	Portevika	6 h 0 min
11 Jul 2024	Horda Pioneer	Knappen disease or zone there	7 h 36 min
10 Jul 2024	Horda Pioneer	Knappen disease or zone there	7 h 23 min
13 Mar 2024	Ronja Christopher	Tveitnes	1 h 32 min
12 Mar 2024	Ronja Christopher	Tveitnes	3 h 58 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
Erko Seafood AS	Week 12, 2024	Week 37, 2026
Blom Fiskeoppdrett AS	Week 20, 2025	Week 40, 2025

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

Licences

Site MAB: 3,120 tonnes

Licence	Type	Capacity	Holder
H ØN 0001	Kommersiell / matfiskSalmon, Rainbow trout, Trout	648 t	Blom Fiskeoppdrett AS
H ØN 0004	Kommersiell / matfiskSalmon, Rainbow trout, Trout	648 t	Blom Fiskeoppdrett AS
H ØN 0007	Kommersiell / matfiskSalmon, Rainbow trout, Trout	648 t	Erko Seafood AS
H ØN 0020	Kommersiell / matfiskSalmon, Rainbow trout, Trout	648 t	Erko Seafood AS
H ØN 0039	Kommersiell / matfiskSalmon, Rainbow trout, Trout	648 t	Erko Seafood AS

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