Barøya

Site 31877 · Namsos municipality · Production area 7, Nord-Trøndelag med Bindal

Status unknown: not reported in week 39Operated by Salmar Oppdrett AS · group SalMar

unknownAdult female lice per fishNo count in week 39. Latest: 0.48 in week 33, 2024Week 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026

unknownWeeks above the limit in 2026No weeks with a count in 2026Calculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026

unknownLice treatments in 2026No lice reports in 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

0Wellboat visits in 2026Latest visit 30 Aug 2024Derived from AIS · Norwegian Coastal Administration (AIS) · updated 01 Oct 2026

1Escapes reportedNumber unknown, October 2023Since 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.

2024

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, 2024
Week	Adult female lice per fish	Lice limit	Status
1	0.33	0.5	Below the limit
2	0.13	0.5	Below the limit
3	0.13	0.5	Below the limit
4	0.23	0.5	Below the limit
5	0.28	0.5	Below the limit
6	0.35	0.5	Below the limit
7	0.15	0.5	Below the limit
8	0.15	0.5	Below the limit
9	0.25	0.5	Below the limit
10	0.47	0.5	Near the limit
11	0.15	0.5	Below the limit
12	0.15	0.5	Below the limit
13	0.22	0.5	Below the limit
14	0.15	0.5	Below the limit
15	0.17	0.5	Below the limit
16	0.15	0.2	Below the limit
17	0.06	0.2	Below the limit
18	0.03	0.2	Below the limit
19	0.15	0.2	Below the limit
20	0.08	0.2	Below the limit
21	0.15	0.2	Below the limit
22	0.03	0.5	Below the limit
23	0.02	0.5	Below the limit
24	0.32	0.5	Below the limit
25	0.28	0.5	Below the limit
26	0.06	0.5	Below the limit
27	0.32	0.5	Below the limit
28	0.40	0.5	Near the limit
29	0.32	0.5	Below the limit
30	0.38	0.5	Below the limit
31	2.32	0.5	Above the limit
32	2.88	0.5	Above the limit
33	0.48	0.5	Near the limit
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

Earlier years

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

Show as table

Adult female lice per fish per week, 2023
Week	Adult female lice per fish	Lice limit	Status
40	0.09	0.5	Below the limit
41	0.23	0.5	Below the limit
42	0.17	0.5	Below the limit
43	0.45	0.5	Near the limit
44	0.08	0.5	Below the limit
45	0.08	0.5	Below the limit
46	0.28	0.5	Below the limit
47	0.05	0.5	Below the limit
48	0.07	0.5	Below the limit
49	0.07	0.5	Below the limit
50	0.12	0.5	Below the limit
51	0.18	0.5	Below the limit
52	0.23	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 32, 2024
Other treatment2 pens · Hydrolicer
Week 29, 2024
Other treatment3 pens · Wellfighter
Week 26, 2024
Other treatment3 pens · Hydrolicer
Week 22, 2024
Other treatment3 pens · Hydrolicer

Show all 11

Week 17, 2024
Other treatment2 pens · Wellfighter
Week 11, 2024
Other treatment2 pens · Optiflush
Week 7, 2024
Other treatment3 pens · Wellfighter
Week 2, 2024
Medicinal bath3 pens · Azamethiphos
Week 47, 2023
Other treatment3 pens · Hydrolicer
Week 44, 2023
Other treatment3 pens · Hydrolicer
Week 40, 2023
Other treatment3 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

21 Oct 2023
Escape of salmon, number unknownCause: Pr nå er det uklart til årsak · Directorate of Fisheries

Wellboat visits

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
30 Aug 2024	Froy Odin	Nordskag	3 h 38 min
24 Aug 2024	Froy Odin	Myrane	3 h 45 min
15 Aug 2024	Ro Senja	Nordskag	1 h 3 min
14 Aug 2024	Ro Senja	Nordskag	57 min
04 Aug 2024	Ronja Explorer	Helligholmen	2 h 57 min
18 Jul 2024	Ronja Ocean	Varholmen	36 h 27 min
25 Apr 2024	Ronja Ocean	Årnes	14 h 53 min
12 Mar 2024	Ro Senja	Salatskjæra	20 h 23 min
16 Feb 2024	Ronja Ocean	no other farm	27 h 25 min
09 Jan 2024	Ro Vision	Nordskag	44 h 5 min

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

Licences

Site MAB: 2,860 tonnes

Licence	Type	Capacity	Holder
NT F 0003	Kommersiell / matfiskSalmon, Rainbow trout, Trout	860 t	Salmar Oppdrett AS
NT F 0010	Kommersiell / matfiskSalmon, Rainbow trout, Trout	860 t	Salmar Oppdrett AS
NT F 0016	Kommersiell / matfiskSalmon, Rainbow trout, Trout	860 t	Salmar Oppdrett AS
NT F 0021	Kommersiell / matfiskSalmon, Rainbow trout, Trout	860 t	Salmar Oppdrett AS

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