Krossholmen

Site 11633 · Bømlo municipality · Production area 3, Karmøy til Sotra

Below the lice limit, week 39Operated by Seashore Sjø AS · group unknown

0.11Adult 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 13 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

2Wellboat visits in 2026by 1 vessel · latest 05 Jul 2026Derived from AIS · Norwegian Coastal Administration (AIS) · updated 01 Oct 2026

1Escapes reported2,753 salmon, May 2017Since 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	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	0.00	0.5	Below the limit
28	0.00	0.5	Below the limit
29	0.00	0.5	Below the limit
30	0.00	0.5	Below the limit
31	0.00	0.5	Below the limit
32	0.00	0.5	Below the limit
33	0.07	0.5	Below the limit
34	0.02	0.5	Below the limit
35	0.03	0.5	Below the limit
36	0.07	0.5	Below the limit
37	0.15	0.5	Below the limit
38	0.15	0.5	Below the limit
39	0.11	0.5	Below the limit

Earlier years

20254 of 39 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	0.34	0.5	Below the limit
2	0.20	0.5	Below the limit
3	0.19	0.5	Below the limit
4	0.20	0.5	Below the limit
5	0.25	0.5	Below the limit
6	0.37	0.5	Below the limit
7	0.45	0.5	Near the limit
8	0.10	0.5	Below the limit
9	0.09	0.5	Below the limit
10	0.13	0.5	Below the limit
11	0.12	0.5	Below the limit
12	0.11	0.5	Below the limit
13	0.19	0.5	Below the limit
14	0.25	0.5	Below the limit
15	0.26	0.5	Below the limit
16	0.13	0.2	Below the limit
17	0.02	0.2	Below the limit
18	0.01	0.2	Below the limit
19	0.02	0.2	Below the limit
20	0.01	0.2	Below the limit
21	0.05	0.2	Below the limit
22	0.23	0.5	Below the limit
23	0.70	0.5	Above the limit
24	1.44	0.5	Above the limit
25	0.18	0.5	Below the limit
26	0.25	0.5	Below the limit
27	0.30	0.5	Below the limit
28	0.41	0.5	Near the limit
29	0.23	0.5	Below the limit
30	0.35	0.5	Below the limit
31	0.52	0.5	Above the limit
32	1.70	0.5	Above the limit
33	0.20	0.5	Below the limit
34	0.29	0.5	Below the limit
35	0.42	0.5	Near the limit
36	0.38	0.5	Below the limit
37	0.11	0.5	Below the limit
38	0.38	0.5	Below the limit
39	0.31	0.5	Below the limit
40	unknown	0.5	Reported without a count
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

20241 of 16 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	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	0.00	0.5	Below the limit
38	0.00	0.5	Below the limit
39	0.00	0.5	Below the limit
40	0.00	0.5	Below the limit
41	0.05	0.5	Below the limit
42	0.14	0.5	Below the limit
43	0.25	0.5	Below the limit
44	0.41	0.5	Near the limit
45	0.18	0.5	Below the limit
46	0.21	0.5	Below the limit
47	0.40	0.5	Near the limit
48	0.38	0.5	Below the limit
49	0.39	0.5	Below the limit
50	0.47	0.5	Near the limit
51	0.52	0.5	Above the limit
52	0.35	0.5	Below the limit

20231 of 3 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	0.88	0.5	Above the limit
41	0.00	0.5	Below the limit
42	0.00	0.5	Below the limit
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

Treatments

Norwegian Food Safety Authority

Week 36, 2025
Other treatment1 pen · FLS Ferskvann
Week 33, 2025
Mechanical delousing2 pens
Week 28, 2025
Other treatment1 pen · Freshtherm
Week 25, 2025
Other treatment1 pen · FLS Ferskvann

Show all 12

Week 24, 2025
Other treatment, Mechanical delousing2 pens · FLS Ferskvann
Week 16, 2025
Other treatmentWhole site · Freshtherm
Week 8, 2025
Thermal delousing3 pens
Week 7, 2025
Thermal delousing1 pen
Week 52, 2024
Medicinal bathWhole site · Azamethiphos
Week 45, 2024
Other treatment2 pens · FLS Ferskvann
Week 43, 2024
Other treatment2 pens · FLS Ferskvann
Week 40, 2023
Mechanical delousingWhole site

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

02 May 2017
2,753 salmon escapedCause: Annet · recaptured 1 · Directorate of Fisheries

Wellboat visits

2 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
05 Jul 2026	Ronja Queen	Nordeimsøyna	3 h 16 min
04 Jul 2026	Ronja Queen	Nordeimsøyna	3 h 0 min
30 Sep 2025	Ronja Superior	Øklandsvågen	2 h 6 min
30 Sep 2025	Ronja Superior	Hjartholmosen	1 h 41 min
22 Sep 2025	Langsund	Øklandsvågen	1 h 17 min
22 Sep 2025	Langsund	Øklandsvågen	1 h 47 min
08 Sep 2025	Ronja Queen	Øklandsvågen	7 h 13 min
07 Sep 2025	Ronja Queen	Øklandsvågen	7 h 29 min
03 Sep 2025	Ronja Queen	Svollandsneset	4 h 5 min
17 Aug 2025	Ronja Queen	Øklandsvågen	4 h 36 min
15 Aug 2025	Ronja Queen	Øklandsvågen	8 h 53 min
13 Aug 2025	Ronja Queen	Mjåneset	5 h 16 min

Show 30 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
29 Jul 2025	Ronja Queen	Øklandsvågen	2 h 42 min
27 Jul 2025	Ronja Vest	Trettholmosen	18 h 25 min
27 Jul 2025	Ronja Queen	Gissøysundet S	4 h 21 min
14 Jul 2025	Ronja Vest	Øklandsvågen	1 h 36 min
13 Jul 2025	Ronja Vest	Øklandsvågen	8 h 3 min
12 Jul 2025	Ronja Vest	Øklandsvågen	10 h 39 min
17 Jun 2025	Ronja Queen	no other farm	5 h 37 min
16 Jun 2025	Ronja Queen	no other farm	14 h 41 min
15 Jun 2025	Ronja Queen	no other farm	1 h 49 min
14 Jun 2025	Ronja Queen	no other farm	4 h 6 min
14 Jun 2025	Ronja Queen	no other farm	16 h 20 min
20 Apr 2025	Ronja Vest	Skaganeset	7 h 42 min
19 Apr 2025	Ronja Vest	Skaganeset	16 h 40 min
18 Apr 2025	Ronja Vest	Skaganeset	17 h 42 min
17 Apr 2025	Ronja Vest	Skaganeset	4 h 11 min
16 Apr 2025	Ronja Vest	Skaganeset	11 h 36 min
18 Feb 2025	Ronja Vest	Mjåneset	9 h 30 min
17 Feb 2025	Ronja Vest	Mjåneset	15 h 52 min
27 Dec 2024	Ronja Vest	Skrubbo	23 h 45 min
26 Dec 2024	Ronja Vest	Skrubbo	10 h 1 min
10 Nov 2024	Navoey	Sauaneset I	2 h 51 min
07 Nov 2024	Ronja Queen	Sølvøyane	26 h 15 min
26 Oct 2024	Ronja Queen	Fusavika	12 h 36 min
25 Oct 2024	Ronja Queen	Fusavika	3 h 35 min
08 Oct 2024	Mowi Star	Langøy	47 min
07 Oct 2024	Mowi Star	Langøy	45 min
17 Sep 2024	Ronja Mistral	Kjeura	3 h 41 min
15 Sep 2024	Ronja Mistral	Kjeura	20 h 27 min
14 Sep 2024	Ronja Mistral	Kjeura	2 h 1 min
13 Sep 2024	Ronja Mistral	Kjeura	5 h 39 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
H B 0002	Kommersiell / matfiskSalmon, Rainbow trout, Trout	689 t	Seashore Sjø AS
H B 0005	Kommersiell / matfiskSalmon, Rainbow trout, Trout	4,825 t	Seashore Sjø AS
H B 0012	Kommersiell / matfiskSalmon, Rainbow trout, Trout	689 t	Seashore Sjø AS
H B 0022	Kommersiell / matfiskSalmon, Rainbow trout, Trout	689 t	Seashore Sjø AS
H B 0036	Kommersiell / matfiskSalmon, Rainbow trout, Trout	689 t	Seashore Sjø AS
H FS 0014	Kommersiell / matfiskSalmon, Rainbow trout, Trout	703 t	Bolaks Sjø AS

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