Hjortøya

Site 35197 · Nærøysund municipality · Production area 7, Nord-Trøndelag med Bindal

Below the lice limit, week 39Operated by Salmar Oppdrett AS · group SalMar

0.00Adult 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 9 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 3 different vessels · latest 29 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 16–21 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	0.31	0.5	Below the limit
2	0.34	0.5	Below the limit
3	0.34	0.5	Below the limit
4	0.35	0.5	Below the limit
5	0.41	0.5	Near the limit
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	0.2	Not reported
17	unknown	0.2	Not reported
18	unknown	0.2	Not reported
19	unknown	0.2	Not reported
20	unknown	0.2	Not reported
21	unknown	0.2	Not reported
22	unknown	0.5	Not reported
23	unknown	0.5	Not reported
24	unknown	0.5	Not reported
25	unknown	0.5	Not reported
26	unknown	0.5	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	Reported without a count
36	0.00	0.5	Below the limit
37	0.00	0.5	Below the limit
38	0.05	0.5	Below the limit
39	0.00	0.5	Below the limit

Earlier years

20250 of 52 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	0.07	0.5	Below the limit
2	0.07	0.5	Below the limit
3	0.04	0.5	Below the limit
4	0.06	0.5	Below the limit
5	0.15	0.5	Below the limit
6	0.09	0.5	Below the limit
7	0.11	0.5	Below the limit
8	0.08	0.5	Below the limit
9	0.26	0.5	Below the limit
10	0.13	0.5	Below the limit
11	0.10	0.5	Below the limit
12	0.10	0.5	Below the limit
13	0.23	0.5	Below the limit
14	0.14	0.5	Below the limit
15	0.09	0.5	Below the limit
16	0.01	0.2	Below the limit
17	0.03	0.2	Below the limit
18	0.03	0.2	Below the limit
19	0.13	0.2	Below the limit
20	0.03	0.2	Below the limit
21	0.06	0.2	Below the limit
22	0.03	0.5	Below the limit
23	0.05	0.5	Below the limit
24	0.11	0.5	Below the limit
25	0.26	0.5	Below the limit
26	0.30	0.5	Below the limit
27	0.30	0.5	Below the limit
28	0.18	0.5	Below the limit
29	0.41	0.5	Near the limit
30	0.15	0.5	Below the limit
31	0.33	0.5	Below the limit
32	0.20	0.5	Below the limit
33	0.19	0.5	Below the limit
34	0.35	0.5	Below the limit
35	0.26	0.5	Below the limit
36	0.36	0.5	Below the limit
37	0.33	0.5	Below the limit
38	0.17	0.5	Below the limit
39	0.14	0.5	Below the limit
40	0.31	0.5	Below the limit
41	0.30	0.5	Below the limit
42	0.34	0.5	Below the limit
43	0.33	0.5	Below the limit
44	0.24	0.5	Below the limit
45	0.08	0.5	Below the limit
46	0.31	0.5	Below the limit
47	0.42	0.5	Near the limit
48	0.20	0.5	Below the limit
49	0.14	0.5	Below the limit
50	0.14	0.5	Below the limit
51	0.16	0.5	Below the limit
52	0.36	0.5	Below the limit

20240 of 25 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	0.22	0.5	Below the limit
2	unknown	0.5	Reported without a count
3	0.32	0.5	Below the limit
4	0.25	0.5	Below the limit
5	0.08	0.5	Below the limit
6	0.19	0.5	Below the limit
7	0.22	0.5	Below the limit
8	0.23	0.5	Below the limit
9	0.30	0.5	Below the limit
10	unknown	0.5	Reported without a count
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	0.2	Not reported
17	unknown	0.2	Not reported
18	unknown	0.2	Not reported
19	unknown	0.2	Not reported
20	unknown	0.2	Not reported
21	unknown	0.2	Not reported
22	unknown	0.5	Not reported
23	unknown	0.5	Not reported
24	unknown	0.5	Not reported
25	unknown	0.5	Not reported
26	unknown	0.5	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	Reported without a count
36	0.00	0.5	Below the limit
37	0.00	0.5	Below the limit
38	0.00	0.5	Below the limit
39	0.02	0.5	Below the limit
40	0.00	0.5	Below the limit
41	0.02	0.5	Below the limit
42	0.02	0.5	Below the limit
43	0.04	0.5	Below the limit
44	0.03	0.5	Below the limit
45	0.03	0.5	Below the limit
46	0.03	0.5	Below the limit
47	0.00	0.5	Below the limit
48	0.03	0.5	Below the limit
49	0.07	0.5	Below the limit
50	0.04	0.5	Below the limit
51	0.02	0.5	Below the limit
52	0.02	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	0.17	0.5	Below the limit
41	0.40	0.5	Near the limit
42	0.15	0.5	Below the limit
43	0.28	0.5	Below the limit
44	0.09	0.5	Below the limit
45	0.19	0.5	Below the limit
46	0.18	0.5	Below the limit
47	0.18	0.5	Below the limit
48	0.29	0.5	Below the limit
49	0.22	0.5	Below the limit
50	0.04	0.5	Below the limit
51	0.22	0.5	Below the limit
52	0.20	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 48, 2025
Mechanical delousing8 pens
Week 45, 2025
Mechanical delousing2 pens
Week 44, 2025
Mechanical delousing7 pens
Week 42, 2025
Mechanical delousing9 pens

Show all 25

Week 41, 2025
Mechanical delousing5 pens
Week 40, 2025
Mechanical delousing6 pens
Week 39, 2025
Mechanical delousing1 pen
Week 38, 2025
Mechanical delousing10 pens
Week 37, 2025
Mechanical delousing11 pens
Week 35, 2025
Mechanical delousing11 pens
Week 33, 2025
Mechanical delousing4 pens
Week 32, 2025
Mechanical delousing7 pens
Week 31, 2025
Mechanical delousing2 pens
Week 30, 2025
Mechanical delousing9 pens
Week 28, 2025
Mechanical delousing11 pens
Week 26, 2025
Mechanical delousing13 pens
Week 20, 2025
Other treatment8 pens · FreshWell
Week 15, 2025
Medicinal bathWhole site · Azamethiphos
Week 49, 2023
Other treatment2 pens · Hydrolicer
Week 48, 2023
Other treatment2 pens · Hydrolicer
Week 46, 2023
Other treatment2 pens · Hydrolicer
Week 44, 2023
Other treatment9 pens · Optilicer, Wellfighter
Week 42, 2023
Other treatment8 pens · Hydrolicer
Week 41, 2023
Other treatment3 pens · Optilicer
Week 40, 2023
Other treatment2 pens · Hydrolicer

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
29 Aug 2026	Ronja Viking	Eiterfjorden	4 h 7 min
25 Feb 2026	Aasvaerfjord	Marøya	1 h 29 min
22 Feb 2026	Aasvaerfjord	Marøya	1 h 57 min
13 Feb 2026	Aasvaerfjord	Marøya	1 h 22 min
12 Feb 2026	Aasvaerfjord	Marøya	3 h 22 min
10 Feb 2026	Aasvaerfjord	Marøya	1 h 32 min
09 Feb 2026	Aasvaerfjord	Marøya	1 h 23 min
06 Feb 2026	Ronja Explorer	Marøya	1 h 8 min
05 Feb 2026	Ronja Explorer	Marøya	1 h 10 min
31 Jan 2026	Aasvaerfjord	Marøya	1 h 52 min
29 Jan 2026	Aasvaerfjord	Marøya	1 h 51 min
09 Jan 2026	Ronja Explorer	Marøya	4 h 39 min

Show 27 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
16 Dec 2025	Ronja Explorer	Marøya	1 h 10 min
16 Dec 2025	Ronja Explorer	Marøya	2 h 6 min
15 Dec 2025	Ronja Explorer	Marøya	1 h 52 min
11 Dec 2025	Ronja Explorer	Marøya	1 h 52 min
11 Dec 2025	Ronja Explorer	Marøya	1 h 40 min
10 Dec 2025	Ronja Explorer	Marøya	2 h 1 min
08 Dec 2025	Ronja Explorer	Marøya	2 h 58 min
25 Nov 2025	Ronja Naeroeysund	Purkholmen	49 h 37 min
22 Oct 2025	Ronja Naeroeysund	Skrubbholmen	2 h 16 min
06 Oct 2025	Ronja Ocean	Marøya	27 h 59 min
03 Oct 2025	Ronja Ocean	Otervika	1 h 47 min
02 Oct 2025	Ronja Ocean	Otervika	19 h 59 min
01 Oct 2025	Ronja Ocean	Otervika	6 h 23 min
24 Jun 2025	Ronja Naeroeysund	Lille Kvitholmen	60 h 29 min
23 Sep 2024	Viknatrans	Kråkholmen	7 h 25 min
31 Aug 2024	Robas	Bjørgan	1 h 22 min
30 Aug 2024	Robas	Bjørgan	1 h 13 min
29 Aug 2024	Robas	Bjørgan	1 h 45 min
28 Aug 2024	Robas	Bjørgan	56 min
27 Aug 2024	Robas	Bjørgan	57 min
21 Mar 2024	Ronja Naeroeysund	Marøya	1 h 52 min
19 Mar 2024	Ronja Naeroeysund	Marøya	2 h 37 min
09 Mar 2024	Froy Odin	Nordskag	1 h 32 min
29 Feb 2024	Ronja Aurora	Marøya	1 h 46 min
04 Feb 2024	Ronja Princess	Nordskag	2 h 31 min
04 Feb 2024	Ro Vision	Sandnesbukta	2 h 19 min
05 Jan 2024	Ro Vision	Nordskag	2 h 36 min

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

Licences

Site MAB: 4,680 tonnes

Licence	Type	Capacity	Holder
NT NR 0014	Kommersiell / matfiskSalmon, Rainbow trout, Trout	804 t	Salmar Oppdrett AS
NT NR 0049	Kommersiell / matfiskSalmon, Rainbow trout, Trout	804 t	Salmar Oppdrett AS
NT NR 0056	Kommersiell / matfiskSalmon, Rainbow trout, Trout	804 t	Salmar Oppdrett AS
NT V 0035	Kommersiell / matfiskSalmon, Rainbow trout, Trout	804 t	Salmar Oppdrett AS
NT V 0038	Kommersiell / matfiskSalmon, Rainbow trout, Trout	804 t	Salmar Oppdrett AS
NT V 0041	Visning / matfiskSalmon, Rainbow trout, Trout	780 t	Salmar Farming AS
TR N 0001	Forskning / matfiskSalmon, Rainbow trout, Trout	780 t	Salmar Farming AS
TR N 0002	Forskning / matfiskSalmon, Rainbow trout, Trout	780 t	Salmar Farming AS

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