Brottøy

Site 35677 · Hadsel municipality · Production area 9, Vestfjorden og Vesterålen

Status unknown: not reported in week 39Operated by Nordlaks Havbruk AS

unknownAdult female lice per fishNo count in week 39. Latest: 0.18 in week 27, 2026Week 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026

0Weeks above the limit in 2026of 27 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

15Wellboat visits in 2026by 4 different vessels · latest 26 Jul 2026Derived from AIS · Norwegian Coastal Administration (AIS) · updated 01 Oct 2026

2Escapes reported10-100 salmon, October 2025Since 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	0.27	0.5	Below the limit
2	0.23	0.5	Below the limit
3	0.24	0.5	Below the limit
4	0.23	0.5	Below the limit
5	0.21	0.5	Below the limit
6	0.18	0.5	Below the limit
7	0.14	0.5	Below the limit
8	0.12	0.5	Below the limit
9	0.11	0.5	Below the limit
10	0.11	0.5	Below the limit
11	0.13	0.5	Below the limit
12	0.11	0.5	Below the limit
13	0.09	0.5	Below the limit
14	0.08	0.5	Below the limit
15	0.08	0.5	Below the limit
16	0.08	0.5	Below the limit
17	0.10	0.5	Below the limit
18	0.10	0.5	Below the limit
19	0.11	0.5	Below the limit
20	0.09	0.5	Below the limit
21	0.09	0.2	Below the limit
22	0.08	0.2	Below the limit
23	0.08	0.2	Below the limit
24	0.09	0.2	Below the limit
25	0.13	0.2	Below the limit
26	0.17	0.2	Near the limit
27	0.18	0.5	Below the limit
28	unknown	0.5	Reported without a count
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

20251 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	0.06	0.5	Below the limit
2	0.14	0.5	Below the limit
3	0.09	0.5	Below the limit
4	0.01	0.5	Below the limit
5	0.14	0.5	Below the limit
6	0.07	0.5	Below the limit
7	0.14	0.5	Below the limit
8	0.03	0.5	Below the limit
9	0.21	0.5	Below the limit
10	0.09	0.5	Below the limit
11	0.19	0.5	Below the limit
12	unknown	0.5	Reported without a count
13	0.13	0.5	Below the limit
14	0.14	0.5	Below the limit
15	0.09	0.5	Below the limit
16	0.14	0.5	Below the limit
17	0.10	0.5	Below the limit
18	0.10	0.5	Below the limit
19	0.04	0.5	Below the limit
20	0.06	0.5	Below the limit
21	0.04	0.2	Below the limit
22	0.04	0.2	Below the limit
23	0.06	0.2	Below the limit
24	0.01	0.2	Below the limit
25	0.12	0.2	Below the limit
26	0.14	0.2	Below the limit
27	0.23	0.5	Below the limit
28	0.16	0.5	Below the limit
29	0.35	0.5	Below the limit
30	0.23	0.5	Below the limit
31	0.13	0.5	Below the limit
32	0.17	0.5	Below the limit
33	0.48	0.5	Near the limit
34	0.43	0.5	Near the limit
35	0.24	0.5	Below the limit
36	0.21	0.5	Below the limit
37	0.29	0.5	Below the limit
38	0.30	0.5	Below the limit
39	0.83	0.5	Above the limit
40	0.28	0.5	Below the limit
41	0.03	0.5	Below the limit
42	0.08	0.5	Below the limit
43	0.27	0.5	Below the limit
44	0.12	0.5	Below the limit
45	0.02	0.5	Below the limit
46	0.12	0.5	Below the limit
47	0.23	0.5	Below the limit
48	0.20	0.5	Below the limit
49	0.21	0.5	Below the limit
50	0.25	0.5	Below the limit
51	0.21	0.5	Below the limit
52	0.22	0.5	Below the limit

20240 of 35 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	0.45	0.5	Near the limit
2	0.28	0.5	Below the limit
3	0.39	0.5	Below the limit
4	0.45	0.5	Near the limit
5	0.15	0.5	Below the limit
6	0.17	0.5	Below the limit
7	0.22	0.5	Below the limit
8	unknown	0.5	Reported without a count
9	0.10	0.5	Below the limit
10	unknown	0.5	Reported without a count
11	0.20	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	0.20	0.5	Below the limit
16	0.10	0.5	Below the limit
17	0.20	0.5	Below the limit
18	0.23	0.5	Below the limit
19	0.12	0.5	Below the limit
20	0.13	0.5	Below the limit
21	0.05	0.2	Below the limit
22	0.15	0.2	Below the limit
23	0.10	0.2	Below the limit
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	Reported without a count
37	0.10	0.5	Below the limit
38	0.00	0.5	Below the limit
39	0.05	0.5	Below the limit
40	0.20	0.5	Below the limit
41	0.05	0.5	Below the limit
42	0.28	0.5	Below the limit
43	0.25	0.5	Below the limit
44	0.04	0.5	Below the limit
45	0.00	0.5	Below the limit
46	0.00	0.5	Below the limit
47	0.10	0.5	Below the limit
48	0.01	0.5	Below the limit
49	0.04	0.5	Below the limit
50	0.03	0.5	Below the limit
51	0.00	0.5	Below the limit
52	0.04	0.5	Below the limit

20230 of 14 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
38	0.34	0.5	Below the limit
39	unknown	0.5	Not reported
40	0.05	0.5	Below the limit
41	0.08	0.5	Below the limit
42	0.09	0.5	Below the limit
43	0.30	0.5	Below the limit
44	0.45	0.5	Near the limit
45	0.10	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	0.05	0.5	Below the limit
51	0.15	0.5	Below the limit
52	0.00	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 44, 2025
Other treatment5 pens · FLS
Week 41, 2025
Medicinal bath2 pens · Azamethiphos
Week 40, 2025
Other treatment3 pens · FLS
Week 39, 2025
Other treatment1 pen · FLS

Show all 16

Week 37, 2025
Other treatment2 pens · FLS
Week 34, 2025
Medicinal bath5 pens · Azamethiphos
Week 31, 2025
Other treatment4 pens · Ferskvann og FLS · FLS
Week 48, 2024
Other treatment2 pens · Ferskvann
Week 42, 2024
Other treatmentWhole site · Thermolicer
Week 40, 2024
Medicinal feedWhole site · Emamectin benzoat
Week 39, 2024
Medicinal feedWhole site · Emamectin benzoat
Week 3, 2024
Medicinal bathWhole site · Deltamethrin
Week 46, 2023
Medicinal bath2 pens · Imidakloprid
Week 45, 2023
Medicinal bath2 pens · Imidakloprid
Week 42, 2023
Other treatment, Thermal delousing3 pens · Ferskvann og thermolicer
Week 38, 2023
Medicinal bathWhole site · Azamethiphos

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

29 Oct 2025
10-100 salmon escapedCause: Se ovenfor. · recaptured 1 · Directorate of Fisheries
18 Oct 2023
10 salmon escapedCause: Feil posisjon på 3-veis ventil · recaptured 1 · Directorate of Fisheries

Wellboat visits

15 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
26 Jul 2026	Ronja Vita	Børøya Slaktemerd	2 h 51 min
26 Jul 2026	Ronja Vita	Børøya Slaktemerd	2 h 35 min
25 Jul 2026	Ronja Vita	Børøya Slaktemerd	2 h 16 min
24 Jul 2026	Ronja Vita	Børøya Slaktemerd	7 h 8 min
22 Jul 2026	Ronja Vita	Børøya Slaktemerd	2 h 25 min
19 Jul 2026	Ronja Vita	Børøya Slaktemerd	2 h 11 min
16 Jul 2026	Ronja Vita	Børøya Slaktemerd	2 h 0 min
15 Jul 2026	Bjorg Pauline	Børøya Slaktemerd	3 h 51 min
12 Jul 2026	Bjorg Pauline	Børøya Slaktemerd	1 h 48 min
24 Apr 2026	Ronja Superior	Børøya Slaktemerd	1 h 21 min
22 Apr 2026	Bjorg Pauline	Børøya Slaktemerd	5 h 44 min
09 Mar 2026	Caspian	Brattberg	1 h 49 min

Show 30 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
06 Feb 2026	Bjorg Pauline	Sørvika	1 h 49 min
24 Jan 2026	Bjorg Pauline	Børøya Slaktemerd	5 h 4 min
11 Jan 2026	Bjorg Pauline	Børøya Slaktemerd	3 h 9 min
22 Dec 2025	Bjorg Pauline	Børøya Slaktemerd	1 h 31 min
28 Oct 2025	Bjorg Pauline	Børøya Slaktemerd	39 h 24 min
22 Oct 2025	Bjorg Pauline	Børøya Slaktemerd	3 h 47 min
21 Oct 2025	Caspian	Børøya Slaktemerd	3 h 43 min
20 Oct 2025	Caspian	Kjøtta V	2 h 26 min
01 Oct 2025	Bjorg Pauline	Børøya Slaktemerd	13 h 15 min
29 Sep 2025	Bjorg Pauline	Børøya Slaktemerd	19 h 27 min
31 Aug 2025	Tonny	Gisløy Nø	1 h 6 min
02 Aug 2025	Bjorg Pauline	Børøya Slaktemerd	1 h 44 min
01 Aug 2025	Bjorg Pauline	Børøya Slaktemerd	17 h 33 min
30 Jul 2025	Bjorg Pauline	Børøya Slaktemerd	20 h 28 min
30 Jul 2025	Bjorg Pauline	Børøya Slaktemerd	9 h 10 min
27 Nov 2024	Bjorg Pauline	Børøya Slaktemerd	27 h 16 min
26 Oct 2024	Ronja Mistral	Våtvika	3 h 18 min
24 Oct 2024	Ronja Mistral	Våtvika	6 h 50 min
17 Oct 2024	Harald Martin	Børøya Slaktemerd	8 h 27 min
03 Sep 2024	Ronja Vita	Trettevik	2 h 1 min
19 Jun 2024	Bjorg Pauline	Børøya Slaktemerd disease or zone there	5 h 10 min
16 Jun 2024	Bjorg Pauline	Ytre Hadseløya	2 h 45 min
20 May 2024	Bjorg Pauline	Dragnes	5 h 29 min
14 May 2024	Bjorg Pauline	Dragnes	2 h 50 min
12 May 2024	Bjorg Pauline	Sandnes Ø	1 h 58 min
09 May 2024	Bjorg Pauline	Ytre Hadseløya	4 h 42 min
06 May 2024	Bjorg Pauline	Børøya Slaktemerd	5 h 43 min
04 Apr 2024	Harald Martin	Børøya Slaktemerd	1 h 39 min
02 Apr 2024	Bjorg Pauline	Børøya Slaktemerd	3 h 3 min
18 Jan 2024	Harald Martin	Lavika	4 h 17 min

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

Licences

Site MAB: 3,120 tonnes

Licence	Type	Capacity	Holder
N V 0001	Kommersiell / matfiskSalmon, Rainbow trout, Trout	812 t	Nordlaks Havbruk AS
N V 0010	Kommersiell / matfiskSalmon, Rainbow trout, Trout	812 t	Nordlaks Havbruk AS
N V 0016	Kommersiell / matfiskSalmon, Rainbow trout, Trout	812 t	Nordlaks Havbruk AS
N VR 0001	Kommersiell / matfiskSalmon, Rainbow trout, Trout	812 t	Nordlaks Havbruk AS

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