Hilderkleiva

Site 31177 · Kvæfjord municipality · Production area 10, Andøya til Senja

Below the lice limit, week 39Operated by Gratanglaks 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 39 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026

1Lice treatments in 2026Latest: Medicinal feed, week 24, 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

0Wellboat visits in 2026Latest visit 14 Nov 2025Derived 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 21–26 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	0.00	0.5	Below the limit
3	0.01	0.5	Below the limit
4	0.00	0.5	Below the limit
5	0.04	0.5	Below the limit
6	0.01	0.5	Below the limit
7	0.02	0.5	Below the limit
8	0.02	0.5	Below the limit
9	0.15	0.5	Below the limit
10	0.21	0.5	Below the limit
11	0.26	0.5	Below the limit
12	0.32	0.5	Below the limit
13	0.38	0.5	Below the limit
14	0.33	0.5	Below the limit
15	0.36	0.5	Below the limit
16	0.40	0.5	Near the limit
17	0.21	0.5	Below the limit
18	0.01	0.5	Below the limit
19	0.00	0.5	Below the limit
20	0.02	0.5	Below the limit
21	0.02	0.2	Below the limit
22	0.02	0.2	Below the limit
23	0.01	0.2	Below the limit
24	0.00	0.2	Below the limit
25	0.00	0.2	Below the limit
26	0.00	0.2	Below the limit
27	0.00	0.5	Below the limit
28	0.01	0.5	Below the limit
29	0.02	0.5	Below the limit
30	0.04	0.5	Below the limit
31	0.06	0.5	Below the limit
32	0.10	0.5	Below the limit
33	0.19	0.5	Below the limit
34	0.13	0.5	Below the limit
35	0.14	0.5	Below the limit
36	0.10	0.5	Below the limit
37	0.08	0.5	Below the limit
38	0.07	0.5	Below the limit
39	0.11	0.5	Below the limit

Earlier years

20251 of 15 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	0.00	0.5	Below the limit
2	0.12	0.5	Below the limit
3	0.21	0.5	Below the limit
4	0.10	0.5	Below the limit
5	0.14	0.5	Below the limit
6	0.20	0.5	Below the limit
7	0.16	0.5	Below the limit
8	0.35	0.5	Below the limit
9	2.67	0.5	Above the limit
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	0.5	Not reported
17	unknown	0.5	Not reported
18	unknown	0.5	Not reported
19	unknown	0.5	Not reported
20	unknown	0.5	Not reported
21	unknown	0.2	Not reported
22	unknown	0.2	Not reported
23	unknown	0.2	Not reported
24	unknown	0.2	Not reported
25	unknown	0.2	Not reported
26	unknown	0.2	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
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	Reported without a count
47	0.00	0.5	Below the limit
48	0.00	0.5	Below the limit
49	0.03	0.5	Below the limit
50	0.00	0.5	Below the limit
51	0.00	0.5	Below the limit
52	0.00	0.5	Below the limit

20246 of 48 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	0.00	0.5	Below the limit
2	0.00	0.5	Below the limit
3	unknown	0.5	Reported without a count
4	0.00	0.5	Below the limit
5	unknown	0.5	Reported without a count
6	0.00	0.5	Below the limit
7	unknown	0.5	Reported without a count
8	0.00	0.5	Below the limit
9	unknown	0.5	Reported without a count
10	0.00	0.5	Below the limit
11	0.00	0.5	Below the limit
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	0.5	Below the limit
17	0.00	0.5	Below the limit
18	0.00	0.5	Below the limit
19	0.00	0.5	Below the limit
20	0.03	0.5	Below the limit
21	0.00	0.2	Below the limit
22	0.00	0.2	Below the limit
23	0.00	0.2	Below the limit
24	0.00	0.2	Below the limit
25	0.00	0.2	Below the limit
26	0.00	0.2	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	0.00	0.5	Below the limit
31	0.00	0.5	Below the limit
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	0.12	0.5	Below the limit
37	0.12	0.5	Below the limit
38	0.35	0.5	Below the limit
39	0.70	0.5	Above the limit
40	0.53	0.5	Above the limit
41	0.86	0.5	Above the limit
42	0.06	0.5	Below the limit
43	0.15	0.5	Below the limit
44	0.43	0.5	Near the limit
45	1.21	0.5	Above the limit
46	1.11	0.5	Above the limit
47	0.97	0.5	Above the limit
48	0.00	0.5	Below the limit
49	0.06	0.5	Below the limit
50	0.08	0.5	Below the limit
51	0.03	0.5	Below the limit
52	0.02	0.5	Below the limit

20230 of 1 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	unknown	0.5	Not reported
50	unknown	0.5	Not reported
51	unknown	0.5	Not reported
52	0.00	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 24, 2026
Medicinal feedWhole site · Emamectin benzoat
Week 48, 2024
Thermal delousing, Freshwater treatmentWhole site
Week 42, 2024
Thermal delousingWhole site
Week 25, 2024
Medicinal feedWhole site · 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

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
14 Nov 2025	Doennland	Grøttøy	1 h 33 min
14 Nov 2025	Doennland	Grøttøy	34 min
13 Nov 2025	Doennland	Grøttøy	5 h 17 min
16 Mar 2025	Caspian	Gregusvika	2 h 31 min
15 Mar 2025	Caspian	Breivoll	2 h 23 min
14 Mar 2025	Caspian	Rotvika	4 h 51 min
11 Mar 2025	Caspian	Alsvåg	2 h 48 min
26 Nov 2024	Grotanger	Gryllefjord	21 h 19 min
25 Nov 2024	Grotanger	Svartskjær	10 h 38 min
24 Nov 2024	Grotanger	Svartskjær	14 h 23 min

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

Licences

Site MAB: 1,200 tonnes

Licence	Type	Capacity	Holder
T G 0007	Kommersiell / matfisk-grønn konvertertSalmon, Rainbow trout, Trout	974 t	Gratanglaks AS
T T 0005	Kommersiell / matfiskSalmon, Rainbow trout, Trout	1,051 t	Gratanglaks AS

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