Sortevika

Site 35318 · Dyrøy municipality · Production area 10, Andøya til Senja

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

unknownAdult female lice per fishNo count in week 39. Latest: 0.16 in week 32, 2026Week 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026

1Weeks above the limit in 2026of 32 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026

1Lice treatments in 2026Latest: Mechanical delousing, week 30, 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

11Wellboat visits in 2026by 2 different vessels · latest 27 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

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Adult female lice per fish per week, 2026
Week	Adult female lice per fish	Lice limit	Status
1	0.26	0.5	Below the limit
2	0.19	0.5	Below the limit
3	0.20	0.5	Below the limit
4	0.18	0.5	Below the limit
5	0.16	0.5	Below the limit
6	0.15	0.5	Below the limit
7	0.16	0.5	Below the limit
8	0.13	0.5	Below the limit
9	0.14	0.5	Below the limit
10	0.11	0.5	Below the limit
11	0.12	0.5	Below the limit
12	0.11	0.5	Below the limit
13	0.10	0.5	Below the limit
14	0.09	0.5	Below the limit
15	0.08	0.5	Below the limit
16	0.08	0.5	Below the limit
17	0.09	0.5	Below the limit
18	0.08	0.5	Below the limit
19	0.06	0.5	Below the limit
20	0.06	0.5	Below the limit
21	0.05	0.2	Below the limit
22	0.04	0.2	Below the limit
23	0.04	0.2	Below the limit
24	0.05	0.2	Below the limit
25	0.06	0.2	Below the limit
26	0.10	0.2	Below the limit
27	0.16	0.5	Below the limit
28	0.19	0.5	Below the limit
29	0.56	0.5	Above the limit
30	0.08	0.5	Below the limit
31	0.11	0.5	Below the limit
32	0.16	0.5	Below the limit
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 31 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	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	Reported without a count
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	0.00	0.5	Below the limit
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	0.00	0.5	Below the limit
35	0.07	0.5	Below the limit
36	0.27	0.5	Below the limit
37	0.03	0.5	Below the limit
38	0.10	0.5	Below the limit
39	0.30	0.5	Below the limit
40	0.03	0.5	Below the limit
41	0.03	0.5	Below the limit
42	0.00	0.5	Below the limit
43	0.13	0.5	Below the limit
44	0.13	0.5	Below the limit
45	0.37	0.5	Below the limit
46	0.02	0.5	Below the limit
47	0.00	0.5	Below the limit
48	0.35	0.5	Below the limit
49	0.24	0.5	Below the limit
50	0.49	0.5	Near the limit
51	0.41	0.5	Near the limit
52	0.29	0.5	Below the limit

20244 of 39 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	0.13	0.5	Below the limit
3	unknown	0.5	Reported without a count
4	0.10	0.5	Below the limit
5	unknown	0.5	Reported without a count
6	0.07	0.5	Below the limit
7	unknown	0.5	Reported without a count
8	0.22	0.5	Below the limit
9	unknown	0.5	Reported without a count
10	0.15	0.5	Below the limit
11	unknown	0.5	Reported without a count
12	0.20	0.5	Below the limit
13	unknown	0.5	Reported without a count
14	0.25	0.5	Below the limit
15	unknown	0.5	Reported without a count
16	0.40	0.5	Near the limit
17	unknown	0.5	Reported without a count
18	0.19	0.5	Below the limit
19	0.35	0.5	Below the limit
20	0.05	0.5	Below the limit
21	0.04	0.2	Below the limit
22	0.07	0.2	Below the limit
23	0.08	0.2	Below the limit
24	0.09	0.2	Below the limit
25	0.07	0.2	Below the limit
26	0.03	0.2	Below the limit
27	0.10	0.5	Below the limit
28	0.06	0.5	Below the limit
29	0.11	0.5	Below the limit
30	0.09	0.5	Below the limit
31	0.13	0.5	Below the limit
32	0.09	0.5	Below the limit
33	0.27	0.5	Below the limit
34	0.29	0.5	Below the limit
35	0.49	0.5	Near the limit
36	0.60	0.5	Above the limit
37	3.81	0.5	Above the limit
38	unknown	0.5	Reported without a count
39	0.02	0.5	Below the limit
40	0.06	0.5	Below the limit
41	1.23	0.5	Above the limit
42	3.18	0.5	Above the limit
43	0.26	0.5	Below the limit
44	0.40	0.5	Near the limit
45	0.40	0.5	Near the limit
46	0.42	0.5	Near the limit
47	0.43	0.5	Near the limit
48	0.45	0.5	Near 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

20230 of 5 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	0.03	0.5	Below the limit
49	0.07	0.5	Below the limit
50	0.03	0.5	Below the limit
51	0.05	0.5	Below the limit
52	0.02	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 30, 2026
Mechanical delousing3 pens
Week 46, 2025
Thermal delousing3 pens
Week 42, 2025
Other treatment2 pens · Ferskvann og thermolicer
Week 41, 2025
Other treatment1 pen · Ferskvann og thermolicer

Show all 12

Week 37, 2025
Other treatmentWhole site · Ferskvann og thermolicer
Week 29, 2025
Medicinal feedWhole site · Emamectin benzoat
Week 28, 2025
Medicinal feedWhole site · Emamectin benzoat
Week 27, 2025
Medicinal feedWhole site · Emamectin benzoat
Week 43, 2024
Thermal delousing2 pens
Week 39, 2024
Medicinal bath2 pens · Azamethiphos
Week 38, 2024
Medicinal bath1 pen · Azamethiphos
Week 20, 2024
Other treatment3 pens · Behandling med termisk i kombinasjon med optiflush.

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

11 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
27 Aug 2026	Ronja Vita	Børøya Slaktemerd	2 h 10 min
25 Aug 2026	Ronja Vita	Børøya Slaktemerd	4 h 12 min
24 Aug 2026	Ronja Vita	Børøya Slaktemerd	2 h 43 min
13 Aug 2026	Ronja Vita	Børøya Slaktemerd	2 h 24 min
12 Aug 2026	Ronja Vita	Børøya Slaktemerd	3 h 14 min
11 Aug 2026	Ronja Vita	Børøya Slaktemerd	2 h 9 min
10 Aug 2026	Ronja Vita	Børøya Slaktemerd	3 h 2 min
09 Aug 2026	Ronja Vita	Børøya Slaktemerd	2 h 55 min
08 Aug 2026	Ronja Vita	Børøya Slaktemerd	2 h 46 min
25 Jul 2026	Bjorg Pauline	Litjevika	7 h 2 min
23 Jul 2026	Bjorg Pauline	Litjevika	39 h 35 min
13 Nov 2025	Harald Martin	Børøya Slaktemerd	38 h 49 min

Show 25 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
13 Oct 2025	Harald Martin	Børøya Slaktemerd	11 h 22 min
12 Oct 2025	Harald Martin	Børøya Slaktemerd	9 h 10 min
09 Sep 2025	Harald Martin	Litjevika	9 h 22 min
25 May 2025	Bjorg Pauline	Stormneset	1 h 57 min
15 Dec 2024	Caspian	Breivoll	2 h 58 min
02 Dec 2024	Ro Arctic	Solheim	7 h 17 min
01 Nov 2024	Viknatrans	Brattberg	2 h 56 min
26 Oct 2024	Skrova	Brattberg	4 h 24 min
19 Oct 2024	Grotanger	Jennskarbotn	2 h 46 min
29 Sep 2024	Grotanger	Kjeiprød	1 h 25 min
29 Sep 2024	Grotanger	Kjeiprød	3 h 59 min
29 Sep 2024	Grotanger	Kjeiprød	4 h 42 min
23 Sep 2024	Grotanger	Brattberg	1 h 9 min
23 Sep 2024	Grotanger	Brattberg	5 h 30 min
23 Sep 2024	Grotanger	Brattberg	3 h 43 min
18 Sep 2024	Grotanger	Jennskarbotn	50 min
17 Sep 2024	Grotanger	Jennskarbotn	10 h 24 min
24 Aug 2024	Grotanger	Myrlandshaug	2 h 26 min
16 Aug 2024	Skrova	Brattberg	2 h 39 min
16 Aug 2024	Skrova	Brattberg	2 h 23 min
28 Jul 2024	Skrova	Brattberg	3 h 23 min
22 Jul 2024	Skrova	Ånderkleiva	2 h 58 min
22 Jul 2024	Skrova	Ånderkleiva	2 h 8 min
12 Jul 2024	Grotanger	Kråkøy Slakteri	2 h 51 min
18 May 2024	Ro Fortune	Vorterøyskagen	25 h 26 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
Gratanglaks AS	Week 48, 2023	Week 48, 2024
Nordlaks Havbruk AS	Week 21, 2025	Week 32, 2026

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

Licences

Site MAB: 2,700 tonnes

Licence	Type	Capacity	Holder
T K 0029	Kommersiell / matfiskSalmon, Rainbow trout, Trout	974 t	Nordlaks Havbruk AS
T KF 0008	Kommersiell / matfiskSalmon, Rainbow trout, Trout	974 t	Nordlaks Havbruk AS
T KN 0007	Kommersiell / matfiskSalmon, Rainbow trout, Trout	974 t	Nordlaks Havbruk AS
T S 0001	Kommersiell / matfiskSalmon, Rainbow trout, Trout	974 t	Nordlaks Havbruk AS
T SK 0004	Kommersiell / matfiskSalmon, Rainbow trout, Trout	974 t	Nordlaks Havbruk AS
T T 0005	Kommersiell / matfiskSalmon, Rainbow trout, Trout	1,051 t	Gratanglaks AS

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