Valøyan

Site 31557 · Frøya municipality · Production area 6, Nordmøre og Sør-Trøndelag

Status unknown: not reported in week 39Operated by Mowi Seawater Norway AS · group Mowi

unknownAdult female lice per fishNo count in week 39. Latest: 0.00 in week 16, 2026Week 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026

0Weeks above the limit in 2026of 16 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026

4Lice treatments in 2026Latest: Mechanical delousing, week 11, 20262026 · Norwegian Food Safety Authority · updated 01 Oct 2026

2Active disease casesILA, confirmed 26 Mar 2026Register since 26 Nov 2024 · Norwegian Food Safety Authority · updated 01 Oct 2026

4Wellboat visits in 2026by 1 vessel · latest 17 Mar 2026Derived from AIS · Norwegian Coastal Administration (AIS) · updated 01 Oct 2026

2Escapes reported1-10 salmon, March 2026Since 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	0.24	0.5	Below the limit
2	0.28	0.5	Below the limit
3	0.27	0.5	Below the limit
4	0.13	0.5	Below the limit
5	0.14	0.5	Below the limit
6	0.20	0.5	Below the limit
7	0.28	0.5	Below the limit
8	0.39	0.5	Below the limit
9	0.30	0.5	Below the limit
10	0.44	0.5	Near the limit
11	0.43	0.5	Near the limit
12	0.43	0.5	Near the limit
13	0.35	0.5	Below the limit
14	0.37	0.5	Below the limit
15	0.40	0.5	Near the limit
16	0.00	0.2	Below the limit
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	unknown	0.5	Not reported
39	unknown	0.5	Not reported

Earlier years

20252 of 51 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	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	0.00	0.5	Below the limit
12	0.00	0.5	Below the limit
13	0.00	0.5	Below the limit
14	0.01	0.5	Below the limit
15	0.03	0.5	Below the limit
16	0.03	0.2	Below the limit
17	0.04	0.2	Below the limit
18	0.04	0.2	Below the limit
19	0.04	0.2	Below the limit
20	0.06	0.2	Below the limit
21	0.07	0.2	Below the limit
22	0.06	0.5	Below the limit
23	0.08	0.5	Below the limit
24	0.12	0.5	Below the limit
25	0.18	0.5	Below the limit
26	0.13	0.5	Below the limit
27	0.24	0.5	Below the limit
28	0.41	0.5	Near the limit
29	0.23	0.5	Below the limit
30	0.18	0.5	Below the limit
31	0.45	0.5	Near the limit
32	0.46	0.5	Near the limit
33	0.48	0.5	Near the limit
34	0.14	0.5	Below the limit
35	0.11	0.5	Below the limit
36	0.12	0.5	Below the limit
37	0.10	0.5	Below the limit
38	1.22	0.5	Above the limit
39	0.43	0.5	Near the limit
40	0.25	0.5	Below the limit
41	0.17	0.5	Below the limit
42	0.36	0.5	Below the limit
43	0.41	0.5	Near the limit
44	0.31	0.5	Below the limit
45	0.45	0.5	Near the limit
46	0.09	0.5	Below the limit
47	0.43	0.5	Near the limit
48	2.16	0.5	Above the limit
49	0.13	0.5	Below the limit
50	0.42	0.5	Near the limit
51	0.08	0.5	Below the limit
52	0.26	0.5	Below the limit

20240 of 23 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	0.13	0.5	Below the limit
2	0.04	0.5	Below the limit
3	0.05	0.5	Below the limit
4	0.22	0.5	Below the limit
5	0.23	0.5	Below the limit
6	0.23	0.5	Below the limit
7	0.26	0.5	Below the limit
8	0.26	0.5	Below the limit
9	0.29	0.5	Below the limit
10	0.18	0.5	Below the limit
11	0.16	0.5	Below the limit
12	0.20	0.5	Below the limit
13	0.21	0.5	Below the limit
14	0.24	0.5	Below the limit
15	0.21	0.5	Below the limit
16	0.11	0.2	Below the limit
17	0.08	0.2	Below the limit
18	0.12	0.2	Below the limit
19	0.03	0.2	Below the limit
20	0.15	0.2	Below the limit
21	0.05	0.2	Below the limit
22	0.35	0.5	Below the limit
23	0.48	0.5	Near the limit
24	unknown	0.5	Reported without a count
25	unknown	0.5	Reported without a count
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
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

20230 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	0.47	0.5	Near the limit
41	0.42	0.5	Near the limit
42	0.20	0.5	Below the limit
43	0.17	0.5	Below the limit
44	0.20	0.5	Below the limit
45	0.21	0.5	Below the limit
46	0.03	0.5	Below the limit
47	0.03	0.5	Below the limit
48	0.02	0.5	Below the limit
49	0.03	0.5	Below the limit
50	0.03	0.5	Below the limit
51	0.09	0.5	Below the limit
52	0.12	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 11, 2026
Mechanical delousing1 pen
Week 9, 2026
Mechanical delousing4 pens
Week 4, 2026
Thermal delousing2 pens
Week 3, 2026
Thermal delousing1 pen

Show all 24

Week 51, 2025
Mechanical delousingWhole site
Week 49, 2025
Mechanical delousing2 pens
Week 48, 2025
Mechanical delousing2 pens
Week 46, 2025
Mechanical delousingWhole site
Week 42, 2025
Mechanical delousing5 pens
Week 39, 2025
Mechanical delousing, Thermal delousing9 pens
Week 36, 2025
Mechanical delousingWhole site
Week 34, 2025
Mechanical delousingWhole site
Week 33, 2025
Thermal delousing4 pens
Week 32, 2025
Mechanical delousing5 pens
Week 31, 2025
Mechanical delousing2 pens
Week 29, 2025
Mechanical delousingWhole site
Week 25, 2025
Mechanical delousing2 pens
Week 2, 2024
Medicinal bath4 pens · Azamethiphos
Week 1, 2024
Medicinal bath5 pens · Azamethiphos
Week 46, 2023
Mechanical delousing3 pens
Week 45, 2023
Mechanical delousing7 pens
Week 42, 2023
Mechanical delousing2 pens
Week 41, 2023
Mechanical delousing1 pen
Week 40, 2023
Mechanical delousing2 pens

Disease

Norwegian Food Safety Authority

26 Mar 2026
Infectious salmon anaemia (ISA): confirmedStatus: active · started 18 Mar 2026 · Norwegian Food Safety Authority
02 Mar 2026
Pancreas disease (PD): confirmedStatus: active · Subtype SAV2 · started 15 Jan 2026 · Norwegian Food Safety Authority

Escapes

Directorate of Fisheries

28 Mar 2026
1-10 salmon escapedCause: Usikker, ser not terne er røket. Det er nok årsaken til selve hullet, men hvorfor den er røket vet vi ikke pr.nå. Siste håndtering av not og inspeksjon etter håndtering er 15.mars. · recaptured 1 · Directorate of Fisheries
06 Oct 2025
1-10 salmon escapedCause: Usikkert på dette tidspunktet. · recaptured 1 · Directorate of Fisheries

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
17 Mar 2026	Froy Saga	Hendneset	4 h 32 min
21 Jan 2026	Froy Saga	Mannbruholmen disease or zone there	21 h 58 min
20 Jan 2026	Froy Saga	Mannbruholmen disease or zone there	2 h 2 min
14 Jan 2026	Froy Saga	Jamnungen	12 h 10 min
10 Dec 2025	Froy Saga	Munkskjæra	10 h 24 min
09 Dec 2025	Froy Saga	Munkskjæra	3 h 8 min
09 Dec 2025	Froy Saga	Munkskjæra	2 h 59 min
29 Sep 2025	Froy Saga	Kåholmen	4 h 45 min
29 Sep 2025	Freyja	Korsholman	18 h 55 min
28 Sep 2025	Freyja	Korsholman	1 h 32 min
28 Sep 2025	Froy Saga	Kåholmen	16 h 2 min
28 Sep 2025	Freyja	Korsholman	2 h 44 min

Show 29 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
27 Sep 2025	Freyja	Korsholman	14 h 44 min
26 Sep 2025	Froy Saga	Kåholmen	39 h 10 min
26 Sep 2025	Freyja	Korsholman	16 h 14 min
25 Sep 2025	Freyja	Korsholman	3 h 53 min
25 Sep 2025	Froy Saga	Kåholmen	11 h 42 min
25 Sep 2025	Freyja	Korsholman	4 h 11 min
24 Sep 2025	Froy Saga	Kåholmen	18 h 38 min
24 Sep 2025	Freyja	Korsholman	18 h 11 min
22 Sep 2025	Freyja	Korsholman	34 h 14 min
14 Aug 2025	Froy Saga	Tennøya	54 h 49 min
13 Aug 2025	Froy Saga	Tennøya	18 h 25 min
23 Jun 2025	Froy Saga	Heggvika	10 h 39 min
22 Jun 2025	Froy Saga	Heggvika	2 h 13 min
21 Jun 2025	Froy Saga	Heggvika	9 h 41 min
20 Jun 2025	Froy Saga	Heggvika	16 h 57 min
19 Jun 2025	Froy Saga	Heggvika	2 h 38 min
19 Jun 2025	Froy Saga	Heggvika	1 h 57 min
18 Jun 2025	Froy Saga	Heggvika	10 h 13 min
17 Jun 2025	Froy Saga	Heggvika	8 h 17 min
11 Jan 2025	Ronja Evolution	Grøttingsøy	2 h 56 min
11 Jan 2025	Ronja Havsoy	Mannbruholmen	1 h 15 min
05 Jan 2025	Ronja Havsoy	Mannbruholmen	1 h 8 min
08 Apr 2024	Froy Jarl	Ulvan	2 h 54 min
19 Mar 2024	Froy Jarl	no other farm	2 h 17 min
13 Mar 2024	Freyja	Mannbruholmen	2 h 57 min
25 Jan 2024	Freyja	Kveitskjeret	1 h 57 min
21 Jan 2024	Froy Jarl	Ulvan	2 h 13 min
11 Jan 2024	Froy Jarl	Ulvan	15 h 16 min
06 Jan 2024	Froy Jarl	Grøttingsøy	50 min

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

Licences

Site MAB: 6,240 tonnes

Licence	Type	Capacity	Holder
ST F 0001	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Mowi Seawater Norway AS
ST F 0002	Kommersiell / matfiskSalmon, Rainbow trout, Trout	1,313 t	Mowi Seawater Norway AS
ST F 0016	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Mowi Seawater Norway AS
ST F 0020	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Mowi Seawater Norway AS
ST F 0021	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Mowi Seawater Norway AS
ST F 0024	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Mowi Seawater Norway AS
ST F 0029	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Mowi Seawater Norway AS
ST F 0032	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Mowi Seawater Norway AS

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