Maradalen

Site 12134 · Kvinnherad municipality · Production area 3, Karmøy til Sotra

Status unknown: not reported in week 39Operated by Nordsjø Fjordbruk AS · group unknown

unknownAdult female lice per fishNo count in week 39. Latest: 0.48 in week 30, 2026Week 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026

2Weeks above the limit in 2026of 30 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026

5Lice treatments in 2026Latest: Mechanical delousing, week 26, 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

33Wellboat visits in 2026by 3 different vessels · latest 09 Aug 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	0.04	0.5	Below the limit
2	0.04	0.5	Below the limit
3	0.03	0.5	Below the limit
4	0.04	0.5	Below the limit
5	0.03	0.5	Below the limit
6	0.03	0.5	Below the limit
7	0.06	0.5	Below the limit
8	0.05	0.5	Below the limit
9	0.15	0.5	Below the limit
10	0.18	0.5	Below the limit
11	0.47	0.5	Near the limit
12	1.21	0.5	Above the limit
13	0.14	0.5	Below the limit
14	0.34	0.5	Below the limit
15	0.12	0.5	Below the limit
16	0.13	0.2	Below the limit
17	0.19	0.2	Near the limit
18	0.09	0.2	Below the limit
19	0.16	0.2	Below the limit
20	0.18	0.2	Near the limit
21	0.18	0.2	Near the limit
22	0.20	0.5	Below the limit
23	0.48	0.5	Near the limit
24	0.45	0.5	Near the limit
25	1.18	0.5	Above the limit
26	0.16	0.5	Below the limit
27	0.28	0.5	Below the limit
28	0.08	0.5	Below the limit
29	0.25	0.5	Below the limit
30	0.48	0.5	Near the limit
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 40 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	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	0.00	0.5	Below the limit
14	0.00	0.5	Below the limit
15	0.00	0.5	Below the limit
16	0.00	0.2	Below the limit
17	0.00	0.2	Below the limit
18	0.00	0.2	Below the limit
19	0.00	0.2	Below the limit
20	0.12	0.2	Below the limit
21	0.16	0.2	Below the limit
22	0.13	0.5	Below the limit
23	0.20	0.5	Below the limit
24	0.07	0.5	Below the limit
25	0.08	0.5	Below the limit
26	0.08	0.5	Below the limit
27	0.24	0.5	Below the limit
28	0.48	0.5	Near the limit
29	0.04	0.5	Below the limit
30	0.00	0.5	Below the limit
31	0.05	0.5	Below the limit
32	0.44	0.5	Near the limit
33	0.47	0.5	Near the limit
34	0.43	0.5	Near the limit
35	0.25	0.5	Below the limit
36	0.12	0.5	Below the limit
37	0.06	0.5	Below the limit
38	0.02	0.5	Below the limit
39	0.05	0.5	Below the limit
40	0.09	0.5	Below the limit
41	0.02	0.5	Below the limit
42	0.02	0.5	Below the limit
43	0.00	0.5	Below the limit
44	0.00	0.5	Below the limit
45	0.01	0.5	Below the limit
46	0.02	0.5	Below the limit
47	0.03	0.5	Below the limit
48	0.09	0.5	Below the limit
49	0.40	0.5	Near the limit
50	0.48	0.5	Near the limit
51	1.47	0.5	Above the limit
52	0.45	0.5	Near 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	0.01	0.5	Below the limit
2	0.01	0.5	Below the limit
3	0.01	0.5	Below the limit
4	0.00	0.5	Below the limit
5	0.08	0.5	Below the limit
6	0.08	0.5	Below the limit
7	0.07	0.5	Below the limit
8	0.08	0.5	Below the limit
9	0.15	0.5	Below the limit
10	0.18	0.5	Below the limit
11	0.26	0.5	Below the limit
12	0.18	0.5	Below the limit
13	0.16	0.5	Below the limit
14	0.31	0.5	Below the limit
15	0.27	0.5	Below the limit
16	0.14	0.2	Below the limit
17	0.14	0.2	Below the limit
18	0.18	0.2	Near the limit
19	0.18	0.2	Near the limit
20	0.16	0.2	Below the limit
21	0.15	0.2	Below the limit
22	0.23	0.5	Below the limit
23	0.40	0.5	Near the limit
24	0.48	0.5	Near the limit
25	0.48	0.5	Near the limit
26	0.15	0.5	Below the limit
27	0.38	0.5	Below the limit
28	0.28	0.5	Below the limit
29	0.33	0.5	Below the limit
30	0.33	0.5	Below the limit
31	unknown	0.5	Reported without a count
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
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

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

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Adult female lice per fish per week, 2023
Week	Adult female lice per fish	Lice limit	Status
40	0.00	0.5	Below the limit
41	0.00	0.5	Below the limit
42	0.00	0.5	Below the limit
43	0.01	0.5	Below the limit
44	0.00	0.5	Below the limit
45	0.00	0.5	Below the limit
46	0.03	0.5	Below the limit
47	0.04	0.5	Below the limit
48	0.11	0.5	Below the limit
49	0.19	0.5	Below the limit
50	0.01	0.5	Below the limit
51	0.00	0.5	Below the limit
52	0.00	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 26, 2026
Mechanical delousingWhole site
Week 25, 2026
Mechanical delousing1 pen
Week 13, 2026
Medicinal bath5 pens · Azamethiphos
Week 12, 2026
Medicinal bath1 pen · Azamethiphos

Show all 10

Week 1, 2026
Thermal delousing, Freshwater treatment4 pens
Week 52, 2025
Freshwater treatment, Thermal delousing10 pens
Week 51, 2025
Thermal delousing, Freshwater treatment2 pens
Week 29, 2025
Thermal delousingWhole site
Week 26, 2024
Mechanical delousingWhole site
Week 50, 2023
Other treatmentWhole site · Ferskvann + optilicer

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

33 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
09 Aug 2026	Kristoffer Tronds	Sunde	3 h 8 min
27 Jul 2026	Kristoffer Tronds	Sunde	2 h 43 min
26 Jul 2026	Kristoffer Tronds	Sunde	4 h 38 min
24 Jun 2026	Namsos	Skavhella	7 h 58 min
24 Jun 2026	Namsos	Skavhella	6 h 20 min
23 Jun 2026	Namsos	Skavhella	20 h 50 min
14 Jun 2026	Kristoffer Tronds	Klungervikneset	3 h 50 min
10 Jun 2026	Namsos	Djupedalen	3 h 16 min
05 Jun 2026	Namsos	Skaganeset	3 h 41 min
31 May 2026	Kristoffer Tronds	Sunde	4 h 31 min
22 May 2026	Kristoffer Tronds	Sunde	3 h 6 min
20 May 2026	Kristoffer Tronds	Sunde	3 h 12 min

Show 40 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
24 Apr 2026	Kristoffer Tronds	Langøyna Ø	2 h 47 min
18 Apr 2026	Kristoffer Tronds	Håøya Nø	5 h 2 min
29 Mar 2026	Kristoffer Tronds	Sunde	1 h 42 min
28 Mar 2026	Kristoffer Tronds	Sunde	5 h 15 min
28 Mar 2026	Kristoffer Tronds	Sunde	6 h 31 min
27 Mar 2026	Kristoffer Tronds	Sunde	5 h 43 min
27 Mar 2026	Kristoffer Tronds	Sunde	4 h 38 min
27 Mar 2026	Kristoffer Tronds	Sunde	1 h 48 min
26 Mar 2026	Kristoffer Tronds	Sunde	5 h 4 min
26 Mar 2026	Kristoffer Tronds	Sunde	6 h 7 min
25 Mar 2026	Kristoffer Tronds	Sunde	5 h 38 min
22 Mar 2026	Kristoffer Tronds	Ebne	2 h 47 min
22 Mar 2026	Kristoffer Tronds	Ebne	5 h 35 min
21 Mar 2026	Kristoffer Tronds	Ebne	2 h 14 min
21 Mar 2026	Kristoffer Tronds	Ebne	3 h 12 min
03 Jan 2026	Kristoffer Tronds	Sunde	13 h 19 min
02 Jan 2026	Kristoffer Tronds	Sunde	2 h 7 min
01 Jan 2026	Kristoffer Tronds	Sunde	15 h 56 min
30 Dec 2025	Navoey	Ebne	2 h 56 min
29 Dec 2025	Kristoffer Tronds	Ihlholmen	8 h 44 min
29 Dec 2025	Kristoffer Tronds	Ihlholmen	1 h 28 min
28 Dec 2025	Kristoffer Tronds	Ihlholmen	3 h 16 min
28 Dec 2025	Kristoffer Tronds	Ihlholmen	10 h 31 min
25 Dec 2025	Kristoffer Tronds	Ihlholmen	26 h 43 min
23 Dec 2025	Kristoffer Tronds	Ihlholmen	20 h 17 min
22 Dec 2025	Kristoffer Tronds	Ihlholmen	16 h 17 min
18 Jul 2025	Kristoffer Tronds	Ebne	29 h 20 min
17 Jul 2025	Kristoffer Tronds	Ebne	21 h 51 min
06 Apr 2025	Kristoffer Tronds	Ebne	5 h 27 min
01 Apr 2025	Navoey	Flornes	4 h 8 min
28 Jul 2024	Kristoffer Tronds	Sunde	2 h 44 min
28 Jul 2024	Kristoffer Tronds	Flornes	2 h 53 min
15 Jun 2024	Kristoffer Tronds	Sunde	2 h 23 min
15 Jun 2024	Kristoffer Tronds	Nappeholmane	2 h 21 min
21 May 2024	Kristoffer Tronds	Sunde	4 h 6 min
20 May 2024	Kristoffer Tronds	Sunde	3 h 31 min
05 May 2024	Kristoffer Tronds	Nappeholmane	4 h 5 min
04 Apr 2024	Kristoffer Tronds	Mælen	6 h 10 min
03 Apr 2024	Navoey	Haugsnesvåg	6 h 10 min
31 Mar 2024	Kristoffer Tronds	Sunde	8 h 50 min

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

Who has reported

The companies that have submitted lice counts for this site, with the first and last week.

Company	From	To
Fjelberg Fjordbruk AS	Week 40, 2023	Week 47, 2025
Nordsjø Fjordbruk AS	Week 13, 2025	Week 30, 2026

Source: Norwegian Food Safety Authority (organisation number on each lice report)

Licences

Site MAB: 3,900 tonnes

Licence	Type	Capacity	Holder
H B 0006	Kommersiell / matfiskSalmon, Rainbow trout, Trout	696 t	Nordsjø Fjordbruk AS
H B 0029	Kommersiell / matfiskSalmon, Rainbow trout, Trout	696 t	Nordsjø Fjordbruk AS
H E 0001	Kommersiell / matfiskSalmon, Rainbow trout, Trout	696 t	Nordsjø Fjordbruk AS
H K 0013	Kommersiell / matfiskSalmon, Rainbow trout, Trout	696 t	Fjelberg Fjordbruk AS
H K 0035	Kommersiell / matfiskSalmon, Rainbow trout, Trout	696 t	Fjelberg Fjordbruk AS
H T 0003	Kommersiell / matfiskSalmon, Rainbow trout, Trout	696 t	Nordsjø Fjordbruk AS
H T 0006	Kommersiell / matfiskSalmon, Rainbow trout, Trout	696 t	Nordsjø Fjordbruk AS
H T 0016	Kommersiell / matfiskSalmon, Rainbow trout, Trout	696 t	Nordsjø Fjordbruk AS
H T 0020	Kommersiell / matfiskSalmon, Rainbow trout, Trout	695 t	Nordsjø Fjordbruk AS

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