Ytterflesa

Site 45032 · Nærøysund municipality · Production area 7, Nord-Trøndelag med Bindal

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

0.28Adult 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 26 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026

7Lice treatments in 2026Latest: Other treatment, week 39, 20262026 · Norwegian Food Safety Authority · updated 01 Oct 2026

0Active disease casesNone active · 1 earlierRegister since 26 Nov 2024 · Norwegian Food Safety Authority · updated 01 Oct 2026

10Wellboat visits in 2026by 5 different vessels · latest 06 Sep 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	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	Reported without a count
14	0.00	0.5	Below the limit
15	0.00	0.5	Below the limit
16	0.00	0.2	Below the limit
17	0.00	0.2	Below the limit
18	0.00	0.2	Below the limit
19	0.00	0.2	Below the limit
20	0.00	0.2	Below the limit
21	0.00	0.2	Below the limit
22	0.00	0.5	Below the limit
23	0.00	0.5	Below the limit
24	0.04	0.5	Below the limit
25	0.01	0.5	Below the limit
26	0.11	0.5	Below the limit
27	0.09	0.5	Below the limit
28	0.12	0.5	Below the limit
29	0.08	0.5	Below the limit
30	0.07	0.5	Below the limit
31	0.09	0.5	Below the limit
32	0.09	0.5	Below the limit
33	0.17	0.5	Below the limit
34	0.22	0.5	Below the limit
35	0.36	0.5	Below the limit
36	0.35	0.5	Below the limit
37	0.26	0.5	Below the limit
38	0.23	0.5	Below the limit
39	0.28	0.5	Below the limit

Earlier years

20250 of 28 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	0.25	0.5	Below the limit
2	0.29	0.5	Below the limit
3	0.37	0.5	Below the limit
4	0.49	0.5	Near the limit
5	0.48	0.5	Near the limit
6	0.10	0.5	Below the limit
7	0.09	0.5	Below the limit
8	0.03	0.5	Below the limit
9	0.09	0.5	Below the limit
10	0.18	0.5	Below the limit
11	0.22	0.5	Below the limit
12	0.25	0.5	Below the limit
13	0.28	0.5	Below the limit
14	0.28	0.5	Below the limit
15	0.38	0.5	Below the limit
16	0.19	0.2	Near the limit
17	0.08	0.2	Below the limit
18	0.09	0.2	Below the limit
19	0.14	0.2	Below the limit
20	0.12	0.2	Below the limit
21	0.19	0.2	Near the limit
22	0.36	0.5	Below the limit
23	0.48	0.5	Near the limit
24	0.46	0.5	Near the limit
25	0.29	0.5	Below the limit
26	0.40	0.5	Near the limit
27	0.42	0.5	Near the limit
28	0.48	0.5	Near the limit
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	unknown	0.5	Not reported
49	unknown	0.5	Not reported
50	unknown	0.5	Not reported
51	unknown	0.5	Not reported
52	unknown	0.5	Not reported

20240 of 34 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	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	0.2	Not reported
17	unknown	0.2	Not reported
18	0.00	0.2	Below the limit
19	unknown	0.2	Reported without a count
20	0.00	0.2	Below the limit
21	0.00	0.2	Below the limit
22	0.00	0.5	Below the limit
23	0.00	0.5	Below the limit
24	0.00	0.5	Below the limit
25	0.00	0.5	Below the limit
26	0.01	0.5	Below the limit
27	0.01	0.5	Below the limit
28	0.01	0.5	Below the limit
29	0.00	0.5	Below the limit
30	0.06	0.5	Below the limit
31	0.36	0.5	Below the limit
32	0.34	0.5	Below the limit
33	0.13	0.5	Below the limit
34	0.17	0.5	Below the limit
35	0.38	0.5	Below the limit
36	0.48	0.5	Near the limit
37	0.49	0.5	Near the limit
38	0.11	0.5	Below the limit
39	0.11	0.5	Below the limit
40	0.42	0.5	Near the limit
41	0.09	0.5	Below the limit
42	0.14	0.5	Below the limit
43	0.19	0.5	Below the limit
44	0.18	0.5	Below the limit
45	0.27	0.5	Below the limit
46	0.14	0.5	Below the limit
47	0.24	0.5	Below the limit
48	0.22	0.5	Below the limit
49	0.24	0.5	Below the limit
50	0.21	0.5	Below the limit
51	0.19	0.5	Below the limit
52	0.23	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 39, 2026
Other treatment1 pen · Ferskvann/Optiflush
Week 38, 2026
Other treatment8 pens · Ferskvann/Optiflush
Week 37, 2026
Mechanical delousing6 pens
Week 36, 2026
Mechanical delousing3 pens

Show all 17

Week 31, 2026
Mechanical delousingWhole site
Week 29, 2026
Mechanical delousing6 pens
Week 28, 2026
Mechanical delousing3 pens
Week 25, 2025
Mechanical delousing1 pen
Week 24, 2025
Mechanical delousing5 pens
Week 17, 2025
Mechanical delousing6 pens
Week 16, 2025
Mechanical delousing8 pens
Week 6, 2025
Mechanical delousing10 pens
Week 47, 2024
Mechanical delousing1 pen
Week 46, 2024
Mechanical delousing3 pens
Week 45, 2024
Mechanical delousing3 pens
Week 41, 2024
Mechanical delousing7 pens
Week 38, 2024
Other treatmentWhole site · FreshWell

Disease

Norwegian Food Safety Authority

20 Nov 2025
Infectious salmon anaemia (ISA): closedstarted 28 May 2025 · Norwegian Food Safety Authority

Escapes

Directorate of Fisheries

No escapes reported from this site since 2006.

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
06 Sep 2026	Ro Vision	Lille Kvitholmen	36 h 41 min
31 Jul 2026	Ro Fjell	Lille Kvitholmen	29 h 42 min
13 Jul 2026	Ro Fjell	Lille Kvitholmen	25 h 47 min
12 Jul 2026	Ro Fjell	Lille Kvitholmen	7 h 29 min
22 Apr 2026	Viknatrans	Lille Kvitholmen	5 h 36 min
21 Apr 2026	Viknatrans	Lille Kvitholmen	34 min
20 Apr 2026	Ronja Aurora	Flesa	2 h 13 min
10 Apr 2026	Viknatrans	Lille Kvitholmen	2 h 30 min
08 Apr 2026	Viknatrans	Lille Kvitholmen	9 h 51 min
27 Mar 2026	Ronja Vita	Lille Kvitholmen	1 h 55 min
25 Jul 2025	Ronja Explorer	Marøya	4 h 33 min
24 Jul 2025	Ronja Explorer	Marøya	4 h 9 min

Show 29 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
23 Jul 2025	Ronja Explorer	Marøya	5 h 0 min
22 Jul 2025	Ronja Explorer	Marøya	3 h 38 min
21 Jul 2025	Ronja Explorer	Marøya	1 h 13 min
18 Jul 2025	Ronja Explorer	Marøya	3 h 42 min
17 Jul 2025	Ronja Explorer	Marøya	2 h 18 min
16 Jul 2025	Ronja Explorer	Marøya	5 h 22 min
15 Jul 2025	Ronja Explorer	Marøya	8 h 22 min
14 Jul 2025	Ronja Explorer	Marøya	5 h 10 min
13 Jul 2025	Ronja Explorer	Marøya	4 h 5 min
12 Jul 2025	Ronja Explorer	Marøya	10 h 26 min
11 Jul 2025	Ronja Explorer	Marøya	5 h 41 min
10 Jul 2025	Ronja Explorer	Marøya	1 h 29 min
10 Jul 2025	Ronja Explorer	Marøya	5 h 21 min
09 Jul 2025	Ronja Explorer	Marøya	5 h 40 min
08 Jul 2025	Ronja Explorer	Marøya	3 h 58 min
07 Jul 2025	Ronja Explorer	Marøya	3 h 0 min
22 Apr 2025	Ronja Naeroeysund	Lille Kvitholmen	2 h 51 min
21 Apr 2025	Ronja Naeroeysund	Lille Kvitholmen	23 h 17 min
19 Apr 2025	Ronja Naeroeysund	Lille Kvitholmen	37 h 52 min
18 Apr 2025	Ronja Naeroeysund	Lille Kvitholmen	59 min
08 Feb 2025	Ro Senja	Storskjeret	30 h 38 min
07 Feb 2025	Ro Senja	Storskjeret	17 h 50 min
05 Feb 2025	Ro Senja	Storskjeret	20 h 25 min
18 Sep 2024	Ronja Naeroeysund	Klungset	12 h 23 min
17 Sep 2024	Ronja Naeroeysund	Klungset	6 h 15 min
16 Sep 2024	Ronja Naeroeysund	Klungset	27 h 4 min
03 May 2024	Ronja Explorer	Kvitskjæret	1 h 25 min
02 May 2024	Ronja Aurora	Lybergsvika	2 h 37 min
01 May 2024	Ronja Aurora	Lybergsvika	7 h 42 min

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

Licences

Site MAB: 5,460 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 0002	Kommersiell / matfiskSalmon, Rainbow trout, Trout	804 t	Salmar Oppdrett AS
NT V 0003	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
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