Kverhelleskjeret

Site 39197 · Solund municipality · Production area 4, Nordhordland til Stadt

Below the lice limit, week 39Operated by Engesund Fiskeoppdrett AS · group unknown

0.30Adult 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 28 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026

3Lice treatments in 2026Latest: Medicinal feed, week 18, 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

1Wellboat visits in 2026by 1 vessel · latest 28 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	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	0.00	0.5	Below the limit
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	0.00	0.2	Below the limit
21	0.00	0.2	Below the limit
22	0.00	0.5	Below the limit
23	0.00	0.5	Below the limit
24	0.00	0.5	Below the limit
25	0.00	0.5	Below the limit
26	0.02	0.5	Below the limit
27	0.00	0.5	Below the limit
28	0.03	0.5	Below the limit
29	0.07	0.5	Below the limit
30	0.05	0.5	Below the limit
31	0.20	0.5	Below the limit
32	0.20	0.5	Below the limit
33	0.13	0.5	Below the limit
34	0.13	0.5	Below the limit
35	0.27	0.5	Below the limit
36	0.13	0.5	Below the limit
37	0.17	0.5	Below the limit
38	0.27	0.5	Below the limit
39	0.30	0.5	Below the limit

Earlier years

20250 of 36 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	0.28	0.5	Below the limit
2	0.28	0.5	Below the limit
3	0.32	0.5	Below the limit
4	0.35	0.5	Below the limit
5	0.43	0.5	Near the limit
6	0.45	0.5	Near the limit
7	0.33	0.5	Below the limit
8	0.12	0.5	Below the limit
9	0.12	0.5	Below the limit
10	0.12	0.5	Below the limit
11	0.17	0.5	Below the limit
12	0.22	0.5	Below the limit
13	0.20	0.5	Below the limit
14	0.22	0.5	Below the limit
15	0.05	0.5	Below the limit
16	0.12	0.2	Below the limit
17	0.12	0.2	Below the limit
18	0.17	0.2	Near the limit
19	0.17	0.2	Near the limit
20	0.05	0.2	Below the limit
21	0.07	0.2	Below the limit
22	0.05	0.5	Below the limit
23	0.10	0.5	Below the limit
24	0.00	0.5	Below the limit
25	0.00	0.5	Below the limit
26	0.05	0.5	Below the limit
27	0.08	0.5	Below the limit
28	0.00	0.5	Below the limit
29	0.00	0.5	Below the limit
30	0.05	0.5	Below the limit
31	0.13	0.5	Below the limit
32	unknown	0.5	Reported without a count
33	0.22	0.5	Below the limit
34	0.15	0.5	Below the limit
35	0.20	0.5	Below the limit
36	0.20	0.5	Below the limit
37	0.45	0.5	Near the limit
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

20241 of 36 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	0.00	0.2	Below the limit
18	0.00	0.2	Below the limit
19	0.00	0.2	Below the limit
20	0.00	0.2	Below the limit
21	0.00	0.2	Below the limit
22	0.00	0.5	Below the limit
23	0.00	0.5	Below the limit
24	0.10	0.5	Below the limit
25	0.05	0.5	Below the limit
26	0.10	0.5	Below the limit
27	0.05	0.5	Below the limit
28	0.15	0.5	Below the limit
29	0.15	0.5	Below the limit
30	0.10	0.5	Below the limit
31	0.15	0.5	Below the limit
32	0.15	0.5	Below the limit
33	0.17	0.5	Below the limit
34	0.17	0.5	Below the limit
35	0.17	0.5	Below the limit
36	0.28	0.5	Below the limit
37	0.57	0.5	Above the limit
38	0.00	0.5	Below the limit
39	0.15	0.5	Below the limit
40	0.32	0.5	Below the limit
41	0.05	0.5	Below the limit
42	0.10	0.5	Below the limit
43	0.17	0.5	Below the limit
44	0.17	0.5	Below the limit
45	0.20	0.5	Below the limit
46	0.23	0.5	Below the limit
47	0.00	0.5	Below the limit
48	0.00	0.5	Below the limit
49	0.05	0.5	Below the limit
50	0.10	0.5	Below the limit
51	0.17	0.5	Below the limit
52	0.17	0.5	Below the limit

20230 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	0.20	0.5	Below the limit
41	0.40	0.5	Near the limit
42	0.40	0.5	Near 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 18, 2026
Medicinal feedEmamectin benzoat
Week 17, 2026
Medicinal feedWhole site · Emamectin benzoat
Week 16, 2026
Medicinal feedEmamectin benzoat
Week 15, 2025
Thermal delousing2 pens

Show all 6

Week 41, 2024
Thermal delousingWhole site
Week 38, 2024
Thermal 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

No escapes reported from this site since 2006.

Wellboat visits

1 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
28 Mar 2026	Ro Chief	no other farm	52 min
10 Apr 2025	Hordagut	Skreda	14 h 15 min
18 Feb 2025	Horda Pioneer	Rekeviki	4 h 11 min
20 Nov 2024	Hordagut	Skreda	14 h 51 min
09 Oct 2024	Hordagut	Austneståa disease or zone there	11 h 39 min
18 Sep 2024	Hordagut	Sagen 2	12 h 32 min
08 Aug 2024	Langsund	Søreide	54 min
24 Apr 2024	Langsund	Ådnekvamme	45 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
Engesund Fiskeoppdrett AS	Week 40, 2023	Week 39, 2026
Sandnes Fiskeoppdrett AS	Week 6, 2025	Week 13, 2025

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

Licences

Site MAB: 1,560 tonnes

Licence	Type	Capacity	Holder
H AV 0093	Kommersiell / matfiskSalmon, Rainbow trout, Trout	710 t	Troland Lakseoppdrett AS
H FJ 0010	Kommersiell / matfiskSalmon, Rainbow trout, Trout	648 t	Engesund Fiskeoppdrett AS
SF FL 0008	Kommersiell / matfiskSalmon, Rainbow trout, Trout	648 t	Sandnes Fiskeoppdrett AS
SF SU 0001	Kommersiell / matfiskSalmon, Rainbow trout, Trout	648 t	Sulefisk AS
SF SU 0008	Kommersiell / matfiskSalmon, Rainbow trout, Trout	648 t	Sulefisk AS
SF SU 0009	Kommersiell / matfiskSalmon, Rainbow trout, Trout	648 t	Sulefisk AS
SF SU 0023	Kommersiell / matfiskSalmon, Rainbow trout, Trout	648 t	Erko Seafood AS
SF SU 0030	Kommersiell / matfiskSalmon, Rainbow trout, Trout	648 t	Sulefisk AS

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