Buholmen

Site 33537 · Åfjord municipality · Production area 6, Nordmøre og Sør-Trøndelag

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

unknownAdult female lice per fishNo count in week 39. Latest: 0.18 in week 29, 2026Week 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026

0Weeks above the limit in 2026of 29 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026

4Lice treatments in 2026Latest: Mechanical delousing, week 27, 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

22Wellboat visits in 2026by 4 different vessels · latest 17 Jul 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	0.12	0.5	Below the limit
2	0.13	0.5	Below the limit
3	0.14	0.5	Below the limit
4	0.15	0.5	Below the limit
5	0.15	0.5	Below the limit
6	0.16	0.5	Below the limit
7	0.16	0.5	Below the limit
8	0.18	0.5	Below the limit
9	0.18	0.5	Below the limit
10	0.16	0.5	Below the limit
11	0.18	0.5	Below the limit
12	0.19	0.5	Below the limit
13	0.18	0.5	Below the limit
14	0.20	0.5	Below the limit
15	0.23	0.5	Below the limit
16	0.18	0.2	Near the limit
17	0.16	0.2	Below the limit
18	0.16	0.2	Below the limit
19	0.03	0.2	Below the limit
20	0.08	0.2	Below the limit
21	0.03	0.2	Below the limit
22	0.03	0.5	Below the limit
23	0.04	0.5	Below the limit
24	0.07	0.5	Below the limit
25	0.17	0.5	Below the limit
26	0.22	0.5	Below the limit
27	0.26	0.5	Below the limit
28	0.32	0.5	Below the limit
29	0.18	0.5	Below the limit
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

20250 of 29 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

Show as table

Adult female lice per fish per week, 2025
Week	Adult female lice per fish	Lice limit	Status
1	0.20	0.5	Below the limit
2	0.20	0.5	Below the limit
3	0.18	0.5	Below the limit
4	0.13	0.5	Below the limit
5	0.08	0.5	Below the limit
6	0.13	0.5	Below the limit
7	0.15	0.5	Below the limit
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	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	0.00	0.5	Below the limit
36	0.00	0.5	Below the limit
37	0.01	0.5	Below the limit
38	0.01	0.5	Below the limit
39	0.01	0.5	Below the limit
40	0.01	0.5	Below the limit
41	0.03	0.5	Below the limit
42	0.02	0.5	Below the limit
43	0.04	0.5	Below the limit
44	0.07	0.5	Below the limit
45	0.08	0.5	Below the limit
46	0.11	0.5	Below the limit
47	0.13	0.5	Below the limit
48	0.12	0.5	Below the limit
49	0.13	0.5	Below the limit
50	0.15	0.5	Below the limit
51	0.12	0.5	Below the limit
52	0.12	0.5	Below the limit

20243 of 22 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

Show as table

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	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	1.22	0.5	Above the limit
32	0.67	0.5	Above the limit
33	0.47	0.5	Near the limit
34	0.49	0.5	Near the limit
35	2.18	0.5	Above the limit
36	0.23	0.5	Below the limit
37	0.25	0.5	Below the limit
38	0.39	0.5	Below the limit
39	0.40	0.5	Near the limit
40	0.24	0.5	Below the limit
41	0.43	0.5	Near the limit
42	0.35	0.5	Below the limit
43	0.44	0.5	Near the limit
44	0.44	0.5	Near the limit
45	0.40	0.5	Near the limit
46	0.35	0.5	Below the limit
47	0.21	0.5	Below the limit
48	0.10	0.5	Below the limit
49	0.25	0.5	Below the limit
50	0.11	0.5	Below the limit
51	0.12	0.5	Below the limit
52	0.17	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 27, 2026
Mechanical delousing2 pens
Week 26, 2026
Mechanical delousing1 pen
Week 19, 2026
Mechanical delousing4 pens
Week 16, 2026
Mechanical delousing2 pens

Show all 13

Week 47, 2024
Mechanical delousing5 pens
Week 42, 2024
Mechanical delousing4 pens
Week 39, 2024
Mechanical delousing1 pen
Week 38, 2024
Other treatment4 pens · Hydrolicer
Week 36, 2024
Other treatment4 pens · Skamik
Week 35, 2024
Other treatment5 pens · Hydrolicer
Week 33, 2024
Other treatment2 pens · Hydrolicer
Week 32, 2024
Other treatment3 pens · Hydrolicer
Week 31, 2024
Other treatment4 pens · 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

22 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
17 Jul 2026	Froy Odin	Nordskag	1 h 56 min
17 Jul 2026	Froy Odin	Nordskag	3 h 17 min
15 Jul 2026	Froy Odin	Nordskag	2 h 42 min
14 Jul 2026	Froy Odin	Smælingen	2 h 40 min
13 Jul 2026	Ronja Princess	Nordskag	1 h 5 min
13 Jul 2026	Ronja Princess	Nordskag	2 h 36 min
07 Jul 2026	Froy Odin	Nordskag	2 h 58 min
06 Jul 2026	Froy Odin	Nordskag	6 h 22 min
01 Jul 2026	Ronja Princess	Smineset N	16 h 29 min
30 Jun 2026	Ronja Princess	Smineset N	7 h 17 min
29 Jun 2026	Ronja Princess	Smineset N	8 h 26 min
25 Jun 2026	Ro Vision	Farmannsøya	2 h 31 min

Show 24 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
24 Jun 2026	Ro Vision	Farmannsøya	10 h 38 min
18 Jun 2026	Aasvaerfjord	Nordskag	1 h 12 min
16 Jun 2026	Aasvaerfjord	Hendneset	1 h 5 min
14 Jun 2026	Aasvaerfjord	Hendneset	2 h 37 min
22 May 2026	Aasvaerfjord	Korsnes	1 h 31 min
06 May 2026	Ro Vision	Ruggstein disease or zone there	51 h 19 min
23 Apr 2026	Ro Vision	Korshamn	3 h 10 min
16 Apr 2026	Ro Vision	Singsholmen	8 h 14 min
15 Apr 2026	Ro Vision	Singsholmen	13 h 35 min
13 Apr 2026	Ronja Princess	no other farm	9 h 42 min
04 Aug 2025	Ro Spirit	Singsholmen	2 h 21 min
02 Aug 2025	Ro Spirit	Store Lerresfjord	2 h 37 min
17 Feb 2025	Ro Vision	Nordskag	1 h 43 min
17 Feb 2025	Ro Vision	Nordskag	2 h 5 min
15 Feb 2025	Ro Vision	Nordskag	2 h 40 min
22 Jan 2025	Ronja Princess	Nordskag	2 h 58 min
01 Jan 2025	Froy Odin	Nordskag	1 h 57 min
23 Dec 2024	Froy Odin	Gjæsingen	3 h 8 min
12 Dec 2024	Ro Vision	Nordskag	1 h 59 min
03 Aug 2024	Ro Senja	Seiskjæra	4 h 6 min
02 Aug 2024	Ro Senja	Seiskjæra	4 h 58 min
01 Aug 2024	Ro Senja	Værøya Ø	1 h 31 min
31 Jul 2024	Ro Senja	Værøya Ø	4 h 46 min
31 Jul 2024	Ro Senja	Værøya Ø	3 h 55 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
ST AA 0005	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Salmar Oppdrett AS
ST AA 0007	Kommersiell / matfisk-grønn konvertertSalmon, Rainbow trout, Trout	788 t	Salmar Oppdrett AS
ST AA 0014	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Salmar Oppdrett AS
ST AA 0017	Kommersiell / matfisk-grønn konvertertSalmon, Rainbow trout, Trout	788 t	Salmar Oppdrett AS
ST AA 0026	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Salmar Oppdrett AS
ST AA 0033	Kommersiell / matfisk-grønn bSalmon, Rainbow trout, Trout	788 t	Salmar Oppdrett AS
ST AA 0034	Kommersiell / matfisk-grønn bSalmon, Rainbow trout, Trout	788 t	Salmar Oppdrett AS
ST F 0018	Kommersiell / matfisk-grønn konvertertSalmon, Rainbow trout, Trout	788 t	Salmar Oppdrett AS
ST F 0019	Kommersiell / matfisk-grønn konvertertSalmon, Rainbow trout, Trout	788 t	Salmar Oppdrett AS
ST F 0061	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Salmar Oppdrett AS
ST F 0069	Kommersiell / matfisk-grønn bSalmon, Rainbow trout, Trout	788 t	Salmar Oppdrett AS
ST F 0070	Kommersiell / matfisk-grønn bSalmon, Rainbow trout, Trout	788 t	Salmar Oppdrett AS
ST Ø 0001	Kommersiell / matfisk-grønn konvertertSalmon, Rainbow trout, Trout	788 t	Salmar Oppdrett AS

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