Store Lerresfjord

Site 10789 · Alta municipality · Production area 12, Vest-Finnmark

Below the lice limit, week 39Operated by Cermaq Norway Salmon AS · group Cermaq

0.09Adult female lice per fishLimit 0.50 · below the limitWeek 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026

0Weeks above the limit in 2026of 39 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026

4Lice treatments in 2026Latest: Mechanical delousing, week 37, 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 3 different vessels · latest 08 Sep 2026Derived from AIS · Norwegian Coastal Administration (AIS) · updated 01 Oct 2026

3Escapes reported1 salmon, December 2024Since 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	0.04	0.5	Below the limit
2	0.02	0.5	Below the limit
3	0.02	0.5	Below the limit
4	0.01	0.5	Below the limit
5	0.01	0.5	Below the limit
6	0.02	0.5	Below the limit
7	0.01	0.5	Below the limit
8	0.01	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	0.01	0.5	Below the limit
13	0.01	0.5	Below the limit
14	0.00	0.5	Below the limit
15	0.00	0.5	Below the limit
16	0.00	0.5	Below the limit
17	0.01	0.5	Below the limit
18	0.00	0.5	Below the limit
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	0.00	0.2	Below the limit
23	0.00	0.2	Below the limit
24	0.00	0.2	Below the limit
25	0.01	0.2	Below the limit
26	0.02	0.2	Below the limit
27	0.08	0.5	Below the limit
28	0.06	0.5	Below the limit
29	0.02	0.5	Below the limit
30	0.01	0.5	Below the limit
31	0.02	0.5	Below the limit
32	0.07	0.5	Below the limit
33	0.21	0.5	Below the limit
34	0.24	0.5	Below the limit
35	0.47	0.5	Near the limit
36	0.40	0.5	Near the limit
37	0.03	0.5	Below the limit
38	0.10	0.5	Below the limit
39	0.09	0.5	Below the limit

Earlier years

20250 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, 2025
Week	Adult female lice per fish	Lice limit	Status
1	0.15	0.5	Below the limit
2	unknown	0.5	Reported without a count
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	Reported without a count
31	0.00	0.5	Below the limit
32	0.00	0.5	Below the limit
33	0.00	0.5	Below the limit
34	0.02	0.5	Below the limit
35	0.00	0.5	Below the limit
36	0.00	0.5	Below the limit
37	0.03	0.5	Below the limit
38	0.03	0.5	Below the limit
39	0.18	0.5	Below the limit
40	0.01	0.5	Below the limit
41	0.01	0.5	Below the limit
42	0.05	0.5	Below the limit
43	0.03	0.5	Below the limit
44	0.02	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	0.02	0.5	Below the limit
49	0.01	0.5	Below the limit
50	0.02	0.5	Below the limit
51	0.03	0.5	Below the limit
52	0.03	0.5	Below the limit

202410 of 44 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	0.06	0.5	Below the limit
2	0.08	0.5	Below the limit
3	0.05	0.5	Below the limit
4	unknown	0.5	Reported without a count
5	0.08	0.5	Below the limit
6	unknown	0.5	Reported without a count
7	0.06	0.5	Below the limit
8	unknown	0.5	Reported without a count
9	0.08	0.5	Below the limit
10	unknown	0.5	Not reported
11	0.09	0.5	Below the limit
12	unknown	0.5	Reported without a count
13	0.07	0.5	Below the limit
14	unknown	0.5	Reported without a count
15	0.04	0.5	Below the limit
16	unknown	0.5	Reported without a count
17	0.06	0.5	Below the limit
18	unknown	0.5	Reported without a count
19	0.06	0.5	Below the limit
20	0.12	0.5	Below the limit
21	0.08	0.2	Below the limit
22	0.11	0.2	Below the limit
23	0.06	0.2	Below the limit
24	0.09	0.2	Below the limit
25	0.08	0.2	Below the limit
26	0.07	0.2	Below the limit
27	0.06	0.5	Below the limit
28	0.03	0.5	Below the limit
29	0.07	0.5	Below the limit
30	0.23	0.5	Below the limit
31	0.40	0.5	Near the limit
32	0.49	0.5	Near the limit
33	0.03	0.5	Below the limit
34	0.19	0.5	Below the limit
35	0.22	0.5	Below the limit
36	1.10	0.5	Above the limit
37	2.91	0.5	Above the limit
38	4.70	0.5	Above the limit
39	6.41	0.5	Above the limit
40	0.43	0.5	Near the limit
41	0.48	0.5	Near the limit
42	1.01	0.5	Above the limit
43	1.71	0.5	Above the limit
44	0.36	0.5	Below the limit
45	1.17	0.5	Above the limit
46	1.13	0.5	Above the limit
47	2.24	0.5	Above the limit
48	3.28	0.5	Above the limit
49	0.13	0.5	Below the limit
50	0.22	0.5	Below the limit
51	0.21	0.5	Below the limit
52	0.22	0.5	Below the limit

20230 of 4 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	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	0.04	0.5	Below the limit
50	0.06	0.5	Below the limit
51	0.04	0.5	Below the limit
52	0.07	0.5	Below the limit

20220 of 1 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, 2022
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	unknown	0.5	Not reported
46	unknown	0.5	Not reported
47	unknown	0.5	Not reported
48	0.23	0.5	Below the limit
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 37, 2026
Mechanical delousingWhole site
Week 34, 2026
Thermal delousing, Mechanical delousing6 pens
Week 28, 2026
Other treatment5 pens · FLS + ferskvann
Week 47, 2025
Medicinal feedWhole site · Emamectin benzoat

Show all 14

Week 46, 2025
Medicinal feedWhole site · Emamectin benzoat
Week 45, 2025
Other treatmentWhole site · FLS + ferskvann
Week 40, 2025
Other treatmentWhole site · Termolicer+ etterspyling
Week 49, 2024
Medicinal bath, Mechanical delousing5 pens · Azamethiphos
Week 48, 2024
Medicinal bath2 pens · Azamethiphos
Week 44, 2024
Other treatment3 pens · Hydrolicer
Week 43, 2024
Other treatmentWhole site · Hydrolicer
Week 41, 2024
Medicinal bath4 pens · Azamethiphos
Week 40, 2024
Medicinal bath4 pens · Azamethiphos
Week 33, 2024
Other treatmentWhole site · Termolicer+ etterspyling

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

02 Dec 2024
1 salmon escapedCause: Usikkert, har ikke mottatt bilder fra hullet enda. Mulig årsak er at det har skjedd under senking av lodd etter levering var avsluttet. · recaptured 1 · Directorate of Fisheries
30 Dec 2020
4 salmon escapedCause: Det ble mistet 4 fisk fra merde 10 under lustelling. Det ble observert at slange fra oppvåkningskar ikke lå inne i merden ca kl 09.50. Årsak var at de ikke hadde lagt slangen fra oppvåkningskaret tilbake i merden, de oppdaget ikke feilen før det var for sent. Resterende fisk i lusetelling ble returnert til merden · recaptured 1 · Directorate of Fisheries
27 Jun 2019
19 other escapedCause: I dag 27/06.2019 klokken 21:55 ved lossing av smolt til lokalitet Store Lerresfjord oppsto det feil ved utpumpingen noe som førte til at smolt ble pumpet ut over dekk på Dønnland. Utpumpingen ble stanset relativt raskt, imidlertid ble det observerte en rømming av anslagvis 10 til 20 stykk smolt på gjennomsnitt 65 gram som falt ned fra dekk og i havet. Det ble øyeblikkelig satt ut gjenfangstgarn. · Directorate of Fisheries

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
08 Sep 2026	Ronja Silver	Vegglandet	48 h 7 min
07 Sep 2026	Ronja Silver	Vegglandet	6 h 8 min
01 Sep 2026	Steigen	Holmen	2 h 37 min
21 Aug 2026	Veidnes	Kråkevik	38 h 1 min
13 Jul 2026	Ronja Silver	Nordnes	3 h 46 min
12 Jul 2026	Ronja Silver	Nordnes	20 h 23 min
11 Jul 2026	Ronja Silver	Nordnes	14 h 35 min
10 Jul 2026	Ronja Silver	Nordnes	9 h 35 min
10 Jul 2026	Ronja Silver	Nordnes	1 h 0 min
09 Jul 2026	Ronja Silver	Nordnes	23 h 25 min
10 Nov 2025	Ro Sunrise	Rypefjord	3 h 25 min
01 Oct 2025	Ro Arctic	Kraken	19 h 2 min

Show 26 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
29 Jul 2025	Ro Spirit	Hestøy	3 h 34 min
24 Jul 2025	Ronja Aurora	Klokkstein	9 h 48 min
02 Dec 2024	Veidnes	Storskjæret	16 h 44 min
02 Dec 2024	Veidnes	Storskjæret	5 h 43 min
01 Dec 2024	Veidnes	Storskjæret	5 h 47 min
01 Dec 2024	Doennland	Rypefjord	4 h 34 min
01 Dec 2024	Veidnes	Storskjæret	3 h 59 min
30 Nov 2024	Doennland	Rypefjord	2 h 22 min
29 Oct 2024	Steigen	Toknebuktneset	23 h 53 min
26 Oct 2024	Veidnes	Kraken	6 h 0 min
18 Oct 2024	Doennland	Rypefjord	2 h 10 min
08 Oct 2024	Veidnes	Nordnes	4 h 50 min
08 Oct 2024	Veidnes	Nordnes	7 h 30 min
07 Oct 2024	Veidnes	Nordnes	6 h 40 min
07 Oct 2024	Veidnes	Nordnes	8 h 38 min
05 Oct 2024	Veidnes	Nordnes	3 h 0 min
05 Oct 2024	Steigen	Nordnes	4 h 47 min
05 Oct 2024	Steigen	Nordnes	2 h 7 min
04 Oct 2024	Steigen	Nordnes	1 h 42 min
01 Oct 2024	Veidnes	Storskjæret	1 h 47 min
01 Oct 2024	Steigen	Hammer	1 h 37 min
30 Sep 2024	Veidnes	Storskjæret	1 h 19 min
30 Sep 2024	Veidnes	Storskjæret	3 h 26 min
30 Sep 2024	Veidnes	Storskjæret	50 min
14 Aug 2024	Ro Arctic	Nordnes	9 h 12 min
12 Aug 2024	Ro Arctic	Nordnes	45 h 55 min

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

Licences

Site MAB: 4,425 tonnes

Licence	Type	Capacity	Holder
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
F A 0069	Forskning / matfiskSalmon, Rainbow trout, Trout	780 t	Cermaq Norway Salmon AS
F A 0070	Forskning / matfiskSalmon, Rainbow trout, Trout	780 t	Cermaq Norway Salmon AS
F M 0021	Kommersiell / matfiskSalmon, Rainbow trout, Trout	984 t	Cermaq Norway Salmon AS
F M 0022	Kommersiell / matfiskSalmon, Rainbow trout, Trout	984 t	Cermaq Norway Salmon AS

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