Kjøsen

Site 27015 · Loppa municipality · Production area 12, Vest-Finnmark

Status unknown: not reported in week 39Operated by Cermaq Finnmark Farming AS

unknownAdult female lice per fishNo count in week 39. Latest: 0.08 in week 20, 2026Week 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026

0Weeks above the limit in 2026of 20 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

7Wellboat visits in 2026by 2 different vessels · latest 24 May 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

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Adult female lice per fish per week, 2026
Week	Adult female lice per fish	Lice limit	Status
1	0.03	0.5	Below the limit
2	0.03	0.5	Below the limit
3	0.03	0.5	Below the limit
4	0.04	0.5	Below the limit
5	0.07	0.5	Below the limit
6	0.03	0.5	Below the limit
7	0.04	0.5	Below the limit
8	0.04	0.5	Below the limit
9	0.08	0.5	Below the limit
10	0.05	0.5	Below the limit
11	0.09	0.5	Below the limit
12	0.06	0.5	Below the limit
13	0.08	0.5	Below the limit
14	0.12	0.5	Below the limit
15	0.10	0.5	Below the limit
16	0.05	0.5	Below the limit
17	0.07	0.5	Below the limit
18	0.08	0.5	Below the limit
19	0.12	0.5	Below the limit
20	0.08	0.5	Below the limit
21	unknown	0.2	Reported without a count
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

Earlier years

20252 of 45 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	0.01	0.5	Below the limit
3	0.01	0.5	Below the limit
4	0.01	0.5	Below the limit
5	0.01	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	unknown	0.5	Reported without a count
10	0.02	0.5	Below the limit
11	unknown	0.5	Reported without a count
12	0.02	0.5	Below the limit
13	unknown	0.5	Reported without a count
14	0.01	0.5	Below the limit
15	unknown	0.5	Reported without a count
16	0.03	0.5	Below the limit
17	unknown	0.5	Reported without a count
18	0.02	0.5	Below the limit
19	0.01	0.5	Below the limit
20	0.04	0.5	Below the limit
21	0.01	0.2	Below the limit
22	0.06	0.2	Below the limit
23	0.04	0.2	Below the limit
24	0.04	0.2	Below the limit
25	0.04	0.2	Below the limit
26	0.07	0.2	Below the limit
27	0.04	0.5	Below the limit
28	0.04	0.5	Below the limit
29	0.07	0.5	Below the limit
30	0.04	0.5	Below the limit
31	0.04	0.5	Below the limit
32	0.15	0.5	Below the limit
33	0.21	0.5	Below the limit
34	0.49	0.5	Near the limit
35	0.04	0.5	Below the limit
36	0.04	0.5	Below the limit
37	0.19	0.5	Below the limit
38	0.39	0.5	Below the limit
39	2.37	0.5	Above the limit
40	0.05	0.5	Below the limit
41	0.14	0.5	Below the limit
42	0.23	0.5	Below the limit
43	0.18	0.5	Below the limit
44	0.38	0.5	Below the limit
45	0.31	0.5	Below the limit
46	0.03	0.5	Below the limit
47	unknown	0.5	Reported without a count
48	0.44	0.5	Near the limit
49	0.49	0.5	Near the limit
50	0.56	0.5	Above the limit
51	0.02	0.5	Below the limit
52	unknown	0.5	Reported without a count

20240 of 26 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	0.03	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	unknown	0.5	Reported without a count
6	0.00	0.5	Below the limit
7	0.00	0.5	Below the limit
8	unknown	0.5	Reported without a count
9	0.00	0.5	Below the limit
10	unknown	0.5	Reported without a count
11	0.00	0.5	Below the limit
12	unknown	0.5	Reported without a count
13	0.05	0.5	Below the limit
14	0.00	0.5	Below the limit
15	0.00	0.5	Below the limit
16	unknown	0.5	Reported without a count
17	0.05	0.5	Below the limit
18	unknown	0.5	Reported without a count
19	0.00	0.5	Below the limit
20	0.00	0.5	Below the limit
21	0.00	0.2	Below the limit
22	unknown	0.2	Reported without a count
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	Reported without a count
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	0.00	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	0.01	0.5	Below the limit

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	0.00	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	0.03	0.5	Below the limit
46	0.02	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 52, 2025
Freshwater treatment, Mechanical delousing2 pens
Week 51, 2025
Mechanical delousing, Freshwater treatment10 pens
Week 46, 2025
Mechanical delousing4 pens
Week 45, 2025
Mechanical delousing3 pens

Show all 9

Week 41, 2025
Mechanical delousing, Freshwater treatment8 pens
Week 40, 2025
Mechanical delousing, Freshwater treatment8 pens
Week 35, 2025
Mechanical delousing6 pens
Week 15, 2025
Medicinal feedWhole site · Emamectin benzoat
Week 40, 2023
Medicinal feed1 pen · 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

7 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
24 May 2026	Veidnes	Rypefjord	2 h 26 min
19 May 2026	Veidnes	Ytre Simanes	8 h 14 min
29 Mar 2026	Ronja Silver	Ytre Simanes	4 h 45 min
25 Mar 2026	Ronja Silver	Ytre Simanes	4 h 4 min
23 Mar 2026	Ronja Silver	Ytre Simanes	4 h 16 min
15 Mar 2026	Ronja Silver	Ytre Simanes	3 h 26 min
08 Mar 2026	Ronja Silver	no other farm	4 h 37 min
22 Dec 2025	Ronja Silver	Auskarnes Ø	17 h 15 min
21 Dec 2025	Ronja Silver	Auskarnes Ø	1 h 46 min
20 Dec 2025	Ronja Silver	Auskarnes Ø	6 h 26 min
19 Dec 2025	Ronja Silver	Auskarnes Ø	21 h 44 min
16 Dec 2025	Ronja Skilsoy	Ytre Simanes	3 h 18 min

Show 15 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
16 Dec 2025	Ronja Skilsoy	Bergsnes V	1 h 30 min
30 Nov 2025	Ronja Skilsoy	Ytre Simanes	2 h 32 min
10 Nov 2025	Ronja Silver	Skaret	7 h 40 min
25 Oct 2025	Ronja Skilsoy	Rypefjord	4 h 7 min
07 Oct 2025	Ronja Silver	Bergsnes V	6 h 16 min
07 Oct 2025	Ronja Silver	Bergsnes V	2 h 4 min
06 Oct 2025	Ronja Silver	Bergsnes V	13 h 37 min
02 Oct 2025	Ronja Silver	Bergsnes V	7 h 20 min
01 Oct 2025	Ronja Silver	Bergsnes V	11 h 55 min
31 Aug 2025	Ronja Silver	Steinviknes	30 h 4 min
30 Aug 2025	Ronja Silver	Steinviknes	13 h 3 min
07 Dec 2024	Seifjell	Danielsnes	1 h 41 min
15 Nov 2024	Ronja Aurora	Danielsnes	57 min
09 Oct 2024	Ronja Aurora	Klampvika N	54 min
07 Oct 2024	Ronja Aurora	Klampvika N	1 h 17 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
Grieg Seafood Finnmark Sjø AS	Week 40, 2023	Week 22, 2024
Grieg Seafood Norway AS	Week 41, 2024	Week 4, 2026
Cermaq Finnmark Farming AS	Week 5, 2026	Week 21, 2026
Cermaq Norway Salmon AS	Week 18, 2026	Week 18, 2026

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

Licences

Site MAB: 2,700 tonnes

Licence	Type	Capacity	Holder
F A 0005	Kommersiell / matfisk-grønn konvertertSalmon, Rainbow trout, Trout	974 t	Cermaq Norway Salmon AS
F A 0009	Kommersiell / matfisk-grønn konvertertSalmon, Rainbow trout, Trout	974 t	Cermaq Norway Salmon AS
F A 0032	Kommersiell / matfisk-grønn konvertertSalmon, Rainbow trout, Trout	974 t	Cermaq Norway Salmon AS
F A 0038	Kommersiell / matfisk-grønn konvertertSalmon, Rainbow trout, Trout	974 t	Cermaq Norway Salmon AS
F A 0060	Kommersiell / matfisk-grønn aSalmon, Rainbow trout, Trout	974 t	Cermaq Norway Salmon AS
F H 0003	Kommersiell / matfiskSalmon, Rainbow trout, Trout	974 t	Cermaq Norway Salmon AS
F H 0009	Kommersiell / matfiskSalmon, Rainbow trout, Trout	974 t	Cermaq Norway Salmon AS
F H 0017	Kommersiell / matfiskSalmon, Rainbow trout, Trout	974 t	Cermaq Norway Salmon AS
F H 0018	Kommersiell / matfiskSalmon, Rainbow trout, Trout	974 t	Cermaq Norway Salmon AS
F H 0019	Kommersiell / matfiskSalmon, Rainbow trout, Trout	974 t	Cermaq Norway Salmon AS
F H 0023	Kommersiell / matfiskSalmon, Rainbow trout, Trout	974 t	Cermaq Norway Salmon AS
F H 0032	Kommersiell / matfiskSalmon, Rainbow trout, Trout	974 t	Cermaq Norway Salmon AS
F H 0033	Kommersiell / matfiskSalmon, Rainbow trout, Trout	974 t	Cermaq Norway Salmon AS
F HV 0006	Kommersiell / matfiskSalmon, Rainbow trout, Trout	974 t	Cermaq Norway Salmon AS
F KD 0001	Kommersiell / matfiskSalmon, Rainbow trout, Trout	974 t	Cermaq Norway Salmon AS
F L 0022	Kommersiell / matfiskSalmon, Rainbow trout, Trout	974 t	Cermaq Norway Salmon AS
F L 0025	Kommersiell / matfiskSalmon, Rainbow trout, Trout	974 t	Cermaq Norway Salmon AS
F L 0026	Kommersiell / matfiskSalmon, Rainbow trout, Trout	974 t	Cermaq Norway Salmon AS
F L 0033	Kommersiell / matfiskSalmon, Rainbow trout, Trout	974 t	Cermaq Norway Salmon AS
F L 0034	Kommersiell / matfisk-grønn aSalmon, Rainbow trout, Trout	954 t	Cermaq Norway Salmon AS
F NK 0019	Kommersiell / matfiskSalmon, Rainbow trout, Trout	974 t	Cermaq Norway Salmon AS
F NK 0020	Kommersiell / matfiskSalmon, Rainbow trout, Trout	974 t	Cermaq Norway Salmon AS
F NK 0022	Kommersiell / matfiskSalmon, Rainbow trout, Trout	974 t	Cermaq Norway Salmon AS
F NK 0023	Kommersiell / matfiskSalmon, Rainbow trout, Trout	974 t	Cermaq Norway Salmon AS
F NK 0024	Kommersiell / matfiskSalmon, Rainbow trout, Trout	974 t	Cermaq Norway Salmon AS
F NK 0042	Kommersiell / matfisk-grønn aSalmon, Rainbow trout, Trout	974 t	Cermaq Norway Salmon AS
TF LA 0002	Kommersiell / matfisk-grønn aSalmon, Rainbow trout, Trout	945 t	Cermaq Norway Salmon AS

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