Krabbholmen

Site 30297 · Åfjord municipality · Production area 6, Nordmøre og Sør-Trøndelag

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

0.17Adult 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 19 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 5 different vessels · latest 16 Jul 2026Derived from AIS · Norwegian Coastal Administration (AIS) · updated 01 Oct 2026

1Escapes reported3 salmon, September 2025Since 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	0.10	0.5	Below the limit
2	0.19	0.5	Below the limit
3	0.22	0.5	Below the limit
4	0.15	0.5	Below the limit
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	0.00	0.5	Below the limit
26	0.00	0.5	Below the limit
27	0.00	0.5	Below the limit
28	0.00	0.5	Below the limit
29	0.00	0.5	Below the limit
30	0.01	0.5	Below the limit
31	0.02	0.5	Below the limit
32	0.01	0.5	Below the limit
33	0.01	0.5	Below the limit
34	0.03	0.5	Below the limit
35	0.07	0.5	Below the limit
36	0.11	0.5	Below the limit
37	0.15	0.5	Below the limit
38	0.25	0.5	Below the limit
39	0.17	0.5	Below the limit

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	0.22	0.5	Below the limit
2	0.16	0.5	Below the limit
3	0.11	0.5	Below the limit
4	0.20	0.5	Below the limit
5	0.21	0.5	Below the limit
6	0.24	0.5	Below the limit
7	0.06	0.5	Below the limit
8	0.16	0.5	Below the limit
9	0.06	0.5	Below the limit
10	0.05	0.5	Below the limit
11	0.05	0.5	Below the limit
12	0.09	0.5	Below the limit
13	0.08	0.5	Below the limit
14	0.05	0.5	Below the limit
15	0.11	0.5	Below the limit
16	0.19	0.2	Near the limit
17	0.18	0.2	Near the limit
18	0.13	0.2	Below the limit
19	0.13	0.2	Below the limit
20	0.11	0.2	Below the limit
21	0.10	0.2	Below the limit
22	0.12	0.5	Below the limit
23	0.12	0.5	Below the limit
24	0.11	0.5	Below the limit
25	0.21	0.5	Below the limit
26	0.37	0.5	Below the limit
27	0.09	0.5	Below the limit
28	0.03	0.5	Below the limit
29	0.21	0.5	Below the limit
30	0.26	0.5	Below the limit
31	0.12	0.5	Below the limit
32	0.33	0.5	Below the limit
33	0.49	0.5	Near the limit
34	0.91	0.5	Above the limit
35	0.09	0.5	Below the limit
36	0.43	0.5	Near the limit
37	0.04	0.5	Below the limit
38	0.23	0.5	Below the limit
39	0.05	0.5	Below the limit
40	0.07	0.5	Below the limit
41	0.21	0.5	Below the limit
42	0.40	0.5	Near the limit
43	0.07	0.5	Below the limit
44	0.38	0.5	Below the limit
45	0.30	0.5	Below the limit
46	0.45	0.5	Near the limit
47	0.07	0.5	Below the limit
48	0.20	0.5	Below the limit
49	0.12	0.5	Below the limit
50	0.17	0.5	Below the limit
51	0.09	0.5	Below the limit
52	0.18	0.5	Below the limit

20240 of 21 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	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	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	0.10	0.5	Below the limit
37	0.10	0.5	Below the limit
38	0.04	0.5	Below the limit
39	0.04	0.5	Below the limit
40	0.04	0.5	Below the limit
41	0.07	0.5	Below the limit
42	0.13	0.5	Below the limit
43	0.19	0.5	Below the limit
44	0.41	0.5	Near the limit
45	0.36	0.5	Below the limit
46	0.36	0.5	Below the limit
47	0.32	0.5	Below the limit
48	0.17	0.5	Below the limit
49	0.23	0.5	Below the limit
50	0.31	0.5	Below the limit
51	0.20	0.5	Below the limit
52	0.13	0.5	Below the limit

20230 of 12 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	0.48	0.5	Near the limit
41	0.47	0.5	Near the limit
42	0.10	0.5	Below the limit
43	0.16	0.5	Below the limit
44	0.21	0.5	Below the limit
45	0.45	0.5	Near the limit
46	0.43	0.5	Near the limit
47	0.10	0.5	Below the limit
48	0.23	0.5	Below the limit
49	0.28	0.5	Below the limit
50	0.38	0.5	Below the limit
51	0.38	0.5	Below the limit
52	unknown	0.5	Not reported

Treatments

Norwegian Food Safety Authority

Week 47, 2025
Mechanical delousing5 pens
Week 43, 2025
Mechanical delousing5 pens
Week 40, 2025
Mechanical delousing5 pens
Week 39, 2025
Mechanical delousing2 pens

Show all 14

Week 38, 2025
Mechanical delousing3 pens
Week 37, 2025
Mechanical delousing3 pens
Week 36, 2025
Mechanical delousing2 pens
Week 35, 2025
Mechanical delousing5 pens
Week 31, 2025
Mechanical delousing4 pens
Week 30, 2025
Mechanical delousing1 pen
Week 28, 2025
Mechanical delousing5 pens
Week 27, 2025
Mechanical delousing4 pens
Week 26, 2025
Mechanical delousing1 pen
Week 18, 2025
Mechanical delousing1 pen

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

05 Sep 2025
3 salmon escapedCause: Mistanke om at en propell har vært borti nota. · recaptured 1 · Directorate of Fisheries

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
16 Jul 2026	Ronja Viking	Krabbholmen II	2 h 38 min
14 Jul 2026	Ronja Viking	Hovdenakken	48 min
01 Jul 2026	Ronja Vita	Småvær	3 h 9 min
18 Jun 2026	Ronja Aurora	Øyra	2 h 26 min
24 Jan 2026	Froy Odin	Nordskag	4 h 10 min
19 Jan 2026	Ronja Spirit	Nordskag	4 h 17 min
18 Jan 2026	Ronja Spirit	Nordskag	4 h 9 min
26 Dec 2025	Ronja Spirit	Nordskag	6 h 9 min
19 Dec 2025	Froy Odin	Seterneset	3 h 8 min
06 Dec 2025	Ro Vision	Krabbholmen II	4 h 31 min
18 Nov 2025	Ro Vision	Krabbholmen II	10 h 56 min
18 Nov 2025	Ro Vision	Krabbholmen II	2 h 33 min

Show 10 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
23 Oct 2025	Ronja Princess	Gjæsingen	2 h 49 min
15 Oct 2025	Ro Vision	Krabbholmen II	2 h 45 min
14 Oct 2025	Ro Vision	Kattholmen II	6 h 37 min
06 Sep 2025	Ronja Princess	Lausund	4 h 32 min
01 May 2025	Ro Senja	Krabbholmen II	9 h 38 min
21 Aug 2024	Ronja Vita	Krabbholmen II	6 h 43 min
07 Aug 2024	Ronja Vita	Krabbholmen II	1 h 20 min
09 Jan 2024	Ronja Princess	Nordskag	2 h 1 min
07 Jan 2024	Ronja Princess	Nordskag	5 h 13 min
04 Jan 2024	Ronja Princess	Nordskag	4 h 15 min

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

Licences

Site MAB: 6,240 tonnes

Licence	Type	Capacity	Holder
M VS 0020	Forskning / matfiskSalmon, Rainbow trout, Trout	780 t	Benchmark Genetics Norway AS
ST H 0007	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	AS Knutshaugfisk
ST H 0009	Kommersiell / matfiskSalmon, Rainbow trout, Trout	1,106 t	AS Knutshaugfisk
ST H 0055	Kommersiell / matfiskSalmon, Rainbow trout, Trout	792 t	AS Knutshaugfisk
ST R 0003	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Salmar Oppdrett AS
ST R 0007	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Salmar Oppdrett AS
ST R 0018	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Salmar Oppdrett AS
ST R 0024	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Salmar Oppdrett AS
TR H 0001	Kommersiell / matfiskSalmon, Rainbow trout, Trout	780 t	AS Knutshaugfisk

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