Tuvan

Site 10821 · Alta municipality · Production area 12, Vest-Finnmark

Status unknown: not reported in week 39Operated by Cermaq Norway Salmon AS · group Cermaq

unknownAdult female lice per fishNo count in week 39. Latest: 0.16 in week 30, 2026Week 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026

0Weeks above the limit in 2026of 30 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026

0Lice treatments in 2026None recorded2026 · Norwegian Food Safety Authority · updated 01 Oct 2026

0Active disease casesNone recordedRegister since 26 Nov 2024 · Norwegian Food Safety Authority · updated 01 Oct 2026

12Wellboat visits in 2026by 4 different vessels · latest 08 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 21–26 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	0.11	0.5	Below the limit
2	0.03	0.5	Below the limit
3	0.12	0.5	Below the limit
4	0.13	0.5	Below the limit
5	0.10	0.5	Below the limit
6	0.13	0.5	Below the limit
7	0.08	0.5	Below the limit
8	0.11	0.5	Below the limit
9	0.07	0.5	Below the limit
10	0.12	0.5	Below the limit
11	0.06	0.5	Below the limit
12	0.05	0.5	Below the limit
13	0.03	0.5	Below the limit
14	0.04	0.5	Below the limit
15	0.03	0.5	Below the limit
16	0.04	0.5	Below the limit
17	0.03	0.5	Below the limit
18	0.05	0.5	Below the limit
19	0.00	0.5	Below the limit
20	0.00	0.5	Below the limit
21	0.06	0.2	Below the limit
22	0.05	0.2	Below the limit
23	0.09	0.2	Below the limit
24	0.08	0.2	Below the limit
25	0.15	0.2	Below the limit
26	0.09	0.2	Below the limit
27	0.14	0.5	Below the limit
28	0.11	0.5	Below the limit
29	0.14	0.5	Below the limit
30	0.16	0.5	Below the limit
31	unknown	0.5	Reported without a count
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

20250 of 47 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	0.01	0.5	Below the limit
8	0.00	0.5	Below the limit
9	unknown	0.5	Reported without a count
10	0.00	0.5	Below the limit
11	unknown	0.5	Reported without a count
12	0.00	0.5	Below the limit
13	unknown	0.5	Reported without a count
14	0.00	0.5	Below the limit
15	unknown	0.5	Reported without a count
16	0.00	0.5	Below the limit
17	0.00	0.5	Below the limit
18	unknown	0.5	Reported without a count
19	0.00	0.5	Below the limit
20	0.01	0.5	Below the limit
21	0.00	0.2	Below the limit
22	0.00	0.2	Below the limit
23	0.00	0.2	Below the limit
24	0.00	0.2	Below the limit
25	0.00	0.2	Below the limit
26	0.00	0.2	Below the limit
27	0.00	0.5	Below the limit
28	0.00	0.5	Below the limit
29	0.00	0.5	Below the limit
30	0.01	0.5	Below the limit
31	0.00	0.5	Below the limit
32	0.00	0.5	Below the limit
33	0.01	0.5	Below the limit
34	0.01	0.5	Below the limit
35	0.00	0.5	Below the limit
36	0.01	0.5	Below the limit
37	0.02	0.5	Below the limit
38	0.00	0.5	Below the limit
39	0.04	0.5	Below the limit
40	0.20	0.5	Below the limit
41	0.01	0.5	Below the limit
42	0.01	0.5	Below the limit
43	0.03	0.5	Below the limit
44	0.10	0.5	Below the limit
45	0.04	0.5	Below the limit
46	0.01	0.5	Below the limit
47	0.10	0.5	Below the limit
48	0.46	0.5	Near the limit
49	0.11	0.5	Below the limit
50	0.05	0.5	Below the limit
51	0.11	0.5	Below the limit
52	0.10	0.5	Below the limit

20240 of 8 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	0.5	Not reported
17	unknown	0.5	Not reported
18	unknown	0.5	Not reported
19	unknown	0.5	Not reported
20	unknown	0.5	Not reported
21	unknown	0.2	Not reported
22	unknown	0.2	Not reported
23	unknown	0.2	Not reported
24	unknown	0.2	Not reported
25	unknown	0.2	Not reported
26	unknown	0.2	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	0.00	0.5	Below the limit
46	0.00	0.5	Below the limit
47	0.00	0.5	Below the limit
48	0.00	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	0.00	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 49, 2025
Mechanical delousing3 pens
Week 40, 2025
Other treatmentWhole site · Termolicer+ etterspyling
Week 50, 2024
Medicinal feedWhole site · Emamectin benzoat
Week 49, 2024
Medicinal feedWhole site · Emamectin benzoat

Show all 5

Week 48, 2024
Medicinal feed3 pens · Emamectin benzoat

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

12 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
08 Aug 2026	Veidnes	Rypefjord	2 h 39 min
07 Aug 2026	Veidnes	Holmen	2 h 7 min
06 Aug 2026	Ronja Silver	Rypefjord	3 h 37 min
04 Aug 2026	Ronja Silver	Ørnhaugneset	2 h 46 min
04 Aug 2026	Steigen	Rypefjord	2 h 23 min
01 Aug 2026	Steigen	Skaret	1 h 33 min
31 Jul 2026	Steigen	Rypefjord	3 h 38 min
30 Jul 2026	Veidnes	Rypefjord	4 h 9 min
30 Jul 2026	Veidnes	Rypefjord	1 h 41 min
15 Jun 2026	Steigen	Laholmen	2 h 43 min
14 Jun 2026	Ro Sunrise	Skaret	2 h 2 min
13 Jun 2026	Ro Sunrise	Ytre Simanes	1 h 22 min

Show 4 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
02 Dec 2025	Ro Sunrise	Rivarbukt	29 h 2 min
03 Nov 2025	Veidnes	Rypefjord	17 h 9 min
03 Oct 2025	Ro Arctic	Nordnes	31 h 50 min
07 Nov 2024	Ro Chief	Rivarbukt	3 h 46 min

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

Licences

Site MAB: 3,480 tonnes

Licence	Type	Capacity	Holder
F A 0039	Kommersiell / matfiskSalmon, Rainbow trout, Trout	987 t	Cermaq Norway Salmon AS
F A 0040	Kommersiell / matfiskSalmon, Rainbow trout, Trout	984 t	Cermaq Norway Salmon AS
F A 0054	Kommersiell / matfisk-grønn konvertertSalmon, Rainbow trout, Trout	984 t	Cermaq Norway Salmon AS
F A 0061	Kommersiell / matfisk-grønn aSalmon, Rainbow trout, Trout	984 t	Cermaq Norway Salmon AS

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