Toska N

Site 31497 · Alver municipality · Production area 4, Nordhordland til Stadt

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

unknownAdult female lice per fishNo count in week 39. Latest: 0.10 in week 14, 2026Week 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026

0Weeks above the limit in 2026of 14 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026

2Lice treatments in 2026Latest: Thermal delousing, week 5, 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

13Wellboat visits in 2026by 5 different vessels · latest 11 Apr 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	0.20	0.5	Below the limit
2	0.21	0.5	Below the limit
3	0.43	0.5	Near the limit
4	0.43	0.5	Near the limit
5	0.02	0.5	Below the limit
6	0.03	0.5	Below the limit
7	0.03	0.5	Below the limit
8	0.08	0.5	Below the limit
9	0.00	0.5	Below the limit
10	0.02	0.5	Below the limit
11	0.02	0.5	Below the limit
12	0.06	0.5	Below the limit
13	0.09	0.5	Below the limit
14	0.10	0.5	Below the limit
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	unknown	0.5	Not reported
39	unknown	0.5	Not reported

Earlier years

20255 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	0.35	0.5	Below the limit
2	0.42	0.5	Near the limit
3	0.06	0.5	Below the limit
4	0.03	0.5	Below the limit
5	0.03	0.5	Below the limit
6	0.19	0.5	Below the limit
7	0.33	0.5	Below the limit
8	0.18	0.5	Below the limit
9	0.21	0.5	Below the limit
10	0.24	0.5	Below the limit
11	0.39	0.5	Below the limit
12	0.42	0.5	Near the limit
13	0.06	0.5	Below the limit
14	0.07	0.5	Below the limit
15	0.09	0.5	Below the limit
16	0.10	0.2	Below the limit
17	0.09	0.2	Below the limit
18	0.14	0.2	Below the limit
19	0.05	0.2	Below the limit
20	0.04	0.2	Below the limit
21	0.10	0.2	Below the limit
22	0.14	0.5	Below the limit
23	0.01	0.5	Below the limit
24	0.01	0.5	Below the limit
25	0.04	0.5	Below the limit
26	0.04	0.5	Below the limit
27	0.09	0.5	Below the limit
28	0.15	0.5	Below the limit
29	0.01	0.5	Below the limit
30	0.01	0.5	Below the limit
31	0.05	0.5	Below the limit
32	0.10	0.5	Below the limit
33	2.27	0.5	Above the limit
34	1.78	0.5	Above the limit
35	0.12	0.5	Below the limit
36	0.27	0.5	Below the limit
37	0.48	0.5	Near the limit
38	2.90	0.5	Above the limit
39	4.71	0.5	Above the limit
40	0.28	0.5	Below the limit
41	0.43	0.5	Near the limit
42	1.33	0.5	Above the limit
43	0.45	0.5	Near the limit
44	0.06	0.5	Below the limit
45	0.23	0.5	Below the limit
46	0.33	0.5	Below the limit
47	0.02	0.5	Below the limit
48	0.14	0.5	Below the limit
49	0.26	0.5	Below the limit
50	0.01	0.5	Below the limit
51	0.10	0.5	Below the limit
52	0.13	0.5	Below the limit

20240 of 13 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	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
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	0.06	0.5	Below the limit
47	0.16	0.5	Below the limit
48	0.16	0.5	Below the limit
49	0.20	0.5	Below the limit
50	0.26	0.5	Below the limit
51	0.30	0.5	Below the limit
52	0.32	0.5	Below the limit

20230 of 3 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
15	0.01	0.5	Below the limit
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	0.04	0.2	Below the limit
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	0.11	0.5	Below the limit
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

Treatments

Norwegian Food Safety Authority

Week 5, 2026
Freshwater treatment, Thermal delousing2 pens
Week 4, 2026
Freshwater treatment, Thermal delousing4 pens
Week 50, 2025
Mechanical delousingWhole site
Week 47, 2025
Thermal delousingWhole site

Show all 16

Week 44, 2025
Mechanical delousing, Freshwater treatment4 pens
Week 43, 2025
Mechanical delousing, Freshwater treatment4 pens
Week 40, 2025
Thermal delousingWhole site
Week 35, 2025
Mechanical delousingWhole site
Week 29, 2025
Thermal delousing, Mechanical delousing4 pens
Week 23, 2025
Thermal delousingWhole site
Week 19, 2025
Mechanical delousing4 pens
Week 13, 2025
Thermal delousingWhole site
Week 3, 2025
Thermal delousing, Freshwater treatment8 pens
Week 27, 2023
Thermal delousing2 pens
Week 20, 2023
Freshwater treatmentWhole site
Week 15, 2023
Thermal delousing3 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

13 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
11 Apr 2026	Rohav	Hesteneset	2 h 26 min
11 Apr 2026	Rostein	Hisdalen	7 h 55 min
09 Apr 2026	Rostein	Nesevågen	1 h 57 min
07 Apr 2026	Rostein	Nesevågen	2 h 4 min
07 Apr 2026	Rostein	Nesevågen	3 h 20 min
05 Apr 2026	Rostein	Skigelstrand	2 h 16 min
30 Mar 2026	Robris	Kastevika	2 h 15 min
30 Mar 2026	Rostein	Kastevika	2 h 23 min
16 Mar 2026	Ro Spirit	Nesevågen	4 h 24 min
15 Mar 2026	Ro Spirit	Hesteneset	2 h 15 min
27 Jan 2026	Horda Pioneer	Duesund	11 h 46 min
26 Jan 2026	Horda Pioneer	Duesund	20 h 31 min

Show 24 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
24 Jan 2026	Horda Pioneer	Duesund	34 h 9 min
14 Dec 2025	Namsos	Toska S	3 h 35 min
12 Dec 2025	Namsos	Toska S	9 h 24 min
29 Oct 2025	Namsos	Moldøyosen	6 h 11 min
29 Oct 2025	Namsos	Moldøyosen	4 h 3 min
28 Oct 2025	Namsos	Moldøyosen	19 h 13 min
27 Oct 2025	Namsos	Moldøyosen	3 h 34 min
27 Oct 2025	Namsos	Moldøyosen	51 min
27 Oct 2025	Namsos	Moldøyosen	5 h 41 min
26 Oct 2025	Namsos	Moldøyosen	3 h 34 min
26 Oct 2025	Namsos	Moldøyosen	4 h 30 min
26 Oct 2025	Namsos	Moldøyosen	4 h 27 min
25 Oct 2025	Namsos	Moldøyosen	9 h 43 min
26 Aug 2025	Namsos	Toska S	2 h 6 min
25 Aug 2025	Namsos	Toska S	18 h 15 min
15 Jul 2025	Namsos	Jibbersholmane	9 h 44 min
10 May 2025	Namsos	Tveitnes	9 h 44 min
09 May 2025	Namsos	Tveitnes	13 h 42 min
25 Mar 2025	Horda Pioneer	Jibbersholmane	14 h 29 min
24 Mar 2025	Horda Pioneer	Jibbersholmane	13 h 9 min
09 Oct 2024	Seifjell	Lyngholmane	4 h 20 min
08 Oct 2024	Seifjell	Lyngholmane	2 h 3 min
08 Oct 2024	Seifjell	Lyngholmane	4 h 48 min
02 Oct 2024	Seifjell	Lyngholmane	1 h 34 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
Lingalaks AS	Week 15, 2023	Week 14, 2026
Lingalaks Gruppen AS	Week 38, 2025	Week 38, 2025

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

Licences

Site MAB: 3,620 tonnes

Licence	Type	Capacity	Holder
H FS 0005	Kommersiell / matfiskSalmon, Rainbow trout, Trout	823 t	Tombre Fiskeanlegg AS
H KM 0017	Kommersiell / matfiskSalmon, Rainbow trout, Trout	876 t	Tombre Fiskeanlegg AS
H KM 0022	Kommersiell / matfiskSalmon, Rainbow trout, Trout	730 t	Lingalaks AS
H R 0001	Kommersiell / matfiskSalmon, Rainbow trout, Trout	738 t	Lingalaks AS
H R 0004	Kommersiell / matfiskSalmon, Rainbow trout, Trout	648 t	Blom Fiskeoppdrett AS
H R 0008	Kommersiell / matfiskSalmon, Rainbow trout, Trout	648 t	Blom Fiskeoppdrett AS
H R 0017	Visning / matfiskSalmon, Rainbow trout, Trout	500 t	Lingalaks AS
H R 0018	Kommersiell / matfiskSalmon, Rainbow trout, Trout	739 t	Lingalaks AS

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