Kråkholmen

Site 21676 · Flatanger municipality · Production area 7, Nord-Trøndelag med Bindal

Status unknown: not reported in week 39Operated by Bjørøya AS

unknownAdult female lice per fishNo count in week 39. Latest: 0.40 in week 7, 2026Week 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026

0Weeks above the limit in 2026of 7 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

7Wellboat visits in 2026by 2 different vessels · latest 03 Mar 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

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Adult female lice per fish per week, 2026
Week	Adult female lice per fish	Lice limit	Status
1	0.00	0.5	Below the limit
2	0.23	0.5	Below the limit
3	0.29	0.5	Below the limit
4	0.30	0.5	Below the limit
5	0.35	0.5	Below the limit
6	0.37	0.5	Below the limit
7	0.40	0.5	Near 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	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

20251 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	0.17	0.5	Below the limit
2	0.23	0.5	Below the limit
3	0.14	0.5	Below the limit
4	0.38	0.5	Below the limit
5	0.19	0.5	Below the limit
6	0.28	0.5	Below the limit
7	0.22	0.5	Below the limit
8	0.18	0.5	Below the limit
9	0.12	0.5	Below the limit
10	0.06	0.5	Below the limit
11	0.09	0.5	Below the limit
12	0.17	0.5	Below the limit
13	0.03	0.5	Below the limit
14	0.13	0.5	Below the limit
15	0.12	0.5	Below the limit
16	0.12	0.2	Below the limit
17	0.14	0.2	Below the limit
18	0.16	0.2	Below the limit
19	0.11	0.2	Below the limit
20	0.07	0.2	Below the limit
21	0.05	0.2	Below the limit
22	0.08	0.5	Below the limit
23	0.22	0.5	Below the limit
24	0.06	0.5	Below the limit
25	0.09	0.5	Below the limit
26	0.17	0.5	Below the limit
27	0.28	0.5	Below the limit
28	0.39	0.5	Below the limit
29	0.37	0.5	Below the limit
30	0.24	0.5	Below the limit
31	0.25	0.5	Below the limit
32	0.33	0.5	Below the limit
33	0.47	0.5	Near the limit
34	0.46	0.5	Near the limit
35	0.40	0.5	Near the limit
36	0.47	0.5	Near the limit
37	0.49	0.5	Near the limit
38	0.58	0.5	Above the limit
39	0.38	0.5	Below the limit
40	0.42	0.5	Near the limit
41	0.49	0.5	Near the limit
42	0.27	0.5	Below the limit
43	0.35	0.5	Below the limit
44	0.42	0.5	Near the limit
45	0.47	0.5	Near the limit
46	0.44	0.5	Near the limit
47	0.24	0.5	Below the limit
48	0.30	0.5	Below the limit
49	0.35	0.5	Below the limit
50	0.38	0.5	Below the limit
51	0.03	0.5	Below the limit
52	0.05	0.5	Below the limit

20240 of 30 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	0.44	0.5	Near the limit
3	0.03	0.5	Below the limit
4	0.11	0.5	Below the limit
5	0.07	0.5	Below the limit
6	0.30	0.5	Below the limit
7	0.40	0.5	Near the limit
8	0.13	0.5	Below the limit
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	0.00	0.5	Below the limit
31	0.00	0.5	Below the limit
32	0.02	0.5	Below the limit
33	0.08	0.5	Below the limit
34	0.03	0.5	Below the limit
35	0.06	0.5	Below the limit
36	0.09	0.5	Below the limit
37	0.12	0.5	Below the limit
38	0.11	0.5	Below the limit
39	0.13	0.5	Below the limit
40	0.07	0.5	Below the limit
41	0.05	0.5	Below the limit
42	0.07	0.5	Below the limit
43	0.31	0.5	Below the limit
44	0.20	0.5	Below the limit
45	0.20	0.5	Below the limit
46	0.23	0.5	Below the limit
47	0.14	0.5	Below the limit
48	0.07	0.5	Below the limit
49	unknown	0.5	Not reported
50	0.09	0.5	Below the limit
51	0.14	0.5	Below the limit
52	0.19	0.5	Below the limit

20230 of 4 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	unknown	0.5	Not reported
49	0.43	0.5	Near the limit
50	0.23	0.5	Below the limit
51	0.35	0.5	Below the limit
52	0.15	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 51, 2025
Mechanical delousingWhole site
Week 47, 2025
Mechanical delousingWhole site
Week 42, 2025
Mechanical delousing2 pens
Week 39, 2025
Mechanical delousing6 pens

Show all 16

Week 35, 2025
Mechanical delousing6 pens
Week 31, 2025
Mechanical delousing2 pens
Week 30, 2025
Mechanical delousing6 pens
Week 29, 2025
Mechanical delousing1 pen
Week 24, 2025
Mechanical delousingWhole site
Week 20, 2025
Mechanical delousing2 pens
Week 19, 2025
Mechanical delousing6 pens
Week 10, 2025
Medicinal feed2 pens · Emamectin benzoat
Week 9, 2025
Medicinal feed2 pens · Emamectin benzoat
Week 8, 2025
Medicinal feed2 pens · Emamectin benzoat
Week 7, 2025
Medicinal bath6 pens · Azamethiphos
Week 38, 2024
Medicinal feed6 pens · Emamectin benzoat

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

7 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
03 Mar 2026	Aasvaerfjord	Marøya	1 h 19 min
01 Mar 2026	Aasvaerfjord	Marøya	7 h 6 min
28 Feb 2026	Aasvaerfjord	Marøya	12 h 29 min
27 Feb 2026	Aasvaerfjord	Marøya	2 h 1 min
26 Feb 2026	Aasvaerfjord	Marøya	3 h 46 min
21 Jan 2026	Ronja Explorer	Marøya	3 h 17 min
20 Jan 2026	Ronja Explorer	Marøya	5 h 29 min
16 Oct 2025	Ronja Naeroeysund	Marøya	3 h 28 min
15 Oct 2025	Ronja Naeroeysund	Marøya	3 h 56 min
07 Oct 2025	Ronja Naeroeysund	Kråkøya	2 h 51 min
01 Oct 2025	Ronja Explorer	Marøya	3 h 7 min
30 Sep 2025	Ronja Explorer	Marøya	2 h 0 min

Show 18 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
22 Sep 2025	Njord Kya	Eldviktaren	46 h 33 min
19 Sep 2025	Ronja Naeroeysund	Marøya	1 h 43 min
18 Sep 2025	Ronja Naeroeysund	Marøya	1 h 55 min
28 Aug 2025	Njord Kya	Knubben	2 h 7 min
25 Aug 2025	Njord Kya	Djuptaren	49 h 27 min
22 Sep 2024	Viknatrans	Harbakholmen	5 h 40 min
23 Jul 2024	Viknatrans	Tosen	1 h 14 min
22 Jul 2024	Viknatrans	Tosen	3 h 28 min
22 Jul 2024	Viknatrans	Tosen	2 h 35 min
06 Mar 2024	Ronja Explorer	Øksningen	2 h 51 min
05 Mar 2024	Ronja Ocean	Marøya	2 h 44 min
26 Feb 2024	Ronja Aurora	Klubben	2 h 10 min
25 Feb 2024	Ronja Aurora	Klubben	4 h 5 min
21 Jan 2024	Aasvaerfjord	Klubben	4 h 19 min
16 Jan 2024	Ronja Explorer	Kråkøya	3 h 28 min
04 Jan 2024	Ronja Explorer	Varholmen	1 h 42 min
02 Jan 2024	Ronja Naeroeysund	no other farm	3 h 28 min
02 Jan 2024	Ronja Explorer	no other farm	2 h 45 min

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

Licences

Site MAB: 6,740 tonnes

Licence	Type	Capacity	Holder
NT F 0027	Visning / matfiskSalmon, Rainbow trout, Trout	780 t	Bjørøya AS
NT F 0028	Kommersiell / matfiskSalmon, Rainbow trout, Trout	804 t	Bjørøya AS
NT F 0029	Kommersiell / matfiskSalmon, Rainbow trout, Trout	804 t	Bjørøya AS
NT F 0033	Kommersiell / matfisk-grønn bSalmon, Rainbow trout, Trout	804 t	Bjørøya AS

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