Gaukværøy

Site 38757 · Bø i Nordland municipality · Production area 9, Vestfjorden og Vesterålen

Status unknown: not reported in week 39Operated by Egil Kristoffersen & Sønner AS Avd Produksjon · group Egil Kristoffersen & Sønner

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unknownAdult female lice per fishNo count in week 39. Latest: 0.06 in week 28, 2026Week 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

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

10Wellboat visits in 2026by 2 different vessels · latest 17 Jul 2026Derived from AIS · Norwegian Coastal Administration (AIS) · updated 01 Oct 2026

1Escapes reported15 salmon, July 2024Since 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	0.11	0.5	Below the limit
2	0.01	0.5	Below the limit
3	0.09	0.5	Below the limit
4	0.07	0.5	Below the limit
5	0.02	0.5	Below the limit
6	0.01	0.5	Below the limit
7	0.01	0.5	Below the limit
8	0.03	0.5	Below the limit
9	0.01	0.5	Below the limit
10	0.02	0.5	Below the limit
11	0.05	0.5	Below the limit
12	0.02	0.5	Below the limit
13	0.00	0.5	Below the limit
14	0.00	0.5	Below the limit
15	0.01	0.5	Below the limit
16	0.02	0.5	Below the limit
17	0.01	0.5	Below the limit
18	0.03	0.5	Below the limit
19	0.02	0.5	Below the limit
20	0.00	0.5	Below the limit
21	0.07	0.2	Below the limit
22	0.01	0.2	Below the limit
23	0.04	0.2	Below the limit
24	0.03	0.2	Below the limit
25	0.03	0.2	Below the limit
26	0.06	0.2	Below the limit
27	0.10	0.5	Below the limit
28	0.06	0.5	Below the limit
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

Earlier years

20250 of 33 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	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	0.00	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	0.02	0.2	Below the limit
27	0.04	0.5	Below the limit
28	0.04	0.5	Below the limit
29	0.14	0.5	Below the limit
30	0.02	0.5	Below the limit
31	0.06	0.5	Below the limit
32	0.04	0.5	Below the limit
33	0.07	0.5	Below the limit
34	0.07	0.5	Below the limit
35	0.10	0.5	Below the limit
36	0.10	0.5	Below the limit
37	0.08	0.5	Below the limit
38	0.06	0.5	Below the limit
39	0.04	0.5	Below the limit
40	0.08	0.5	Below the limit
41	0.01	0.5	Below the limit
42	0.02	0.5	Below the limit
43	0.04	0.5	Below the limit
44	0.01	0.5	Below the limit
45	0.00	0.5	Below the limit
46	0.05	0.5	Below the limit
47	0.10	0.5	Below the limit
48	0.07	0.5	Below the limit
49	0.16	0.5	Below the limit
50	0.13	0.5	Below the limit
51	0.08	0.5	Below the limit
52	0.09	0.5	Below the limit

20242 of 35 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	0.18	0.5	Below the limit
2	0.13	0.5	Below the limit
3	0.17	0.5	Below the limit
4	unknown	0.5	Reported without a count
5	0.06	0.5	Below the limit
6	0.08	0.5	Below the limit
7	0.08	0.5	Below the limit
8	0.06	0.5	Below the limit
9	0.06	0.5	Below the limit
10	0.07	0.5	Below the limit
11	0.06	0.5	Below the limit
12	0.04	0.5	Below the limit
13	0.06	0.5	Below the limit
14	0.03	0.5	Below the limit
15	0.02	0.5	Below the limit
16	0.03	0.5	Below the limit
17	0.04	0.5	Below the limit
18	0.03	0.5	Below the limit
19	0.00	0.5	Below the limit
20	0.00	0.5	Below the limit
21	0.02	0.2	Below the limit
22	0.01	0.2	Below the limit
23	0.01	0.2	Below the limit
24	0.05	0.2	Below the limit
25	0.12	0.2	Below the limit
26	0.18	0.2	Near the limit
27	0.23	0.5	Below the limit
28	0.15	0.5	Below the limit
29	0.11	0.5	Below the limit
30	0.26	0.5	Below the limit
31	0.44	0.5	Near the limit
32	0.46	0.5	Near the limit
33	0.48	0.5	Near the limit
34	0.36	0.5	Below the limit
35	1.13	0.5	Above the limit
36	1.00	0.5	Above the limit
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 19 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
34	0.10	0.5	Below the limit
35	0.27	0.5	Below the limit
36	0.26	0.5	Below the limit
37	0.24	0.5	Below the limit
38	0.29	0.5	Below the limit
39	0.24	0.5	Below the limit
40	0.20	0.5	Below the limit
41	0.14	0.5	Below the limit
42	0.12	0.5	Below the limit
43	0.06	0.5	Below the limit
44	0.10	0.5	Below the limit
45	0.08	0.5	Below the limit
46	0.13	0.5	Below the limit
47	0.15	0.5	Below the limit
48	0.22	0.5	Below the limit
49	0.19	0.5	Below the limit
50	0.20	0.5	Below the limit
51	0.19	0.5	Below the limit
52	0.16	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 41, 2025
Mechanical delousing1 pen
Week 39, 2025
Thermal delousing4 pens
Week 32, 2025
Medicinal feedWhole site · Emamectin benzoat
Week 28, 2024
Medicinal bath6 pens · Azamethiphos

Show all 8

Week 27, 2024
Medicinal bath2 pens · Azamethiphos
Week 1, 2024
Freshwater treatment2 pens
Week 43, 2023
Thermal delousing4 pens
Week 41, 2023
Thermal delousing3 pens

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

25 Jul 2024
15 salmon escapedCause: ukjent · recaptured 1 · Directorate of Fisheries

Wellboat visits

10 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
17 Jul 2026	Caspian	Brattberg	2 h 19 min
09 Jul 2026	Caspian	Brattberg	2 h 15 min
04 Jul 2026	Grotanger	Børøya Slaktemerd	2 h 21 min
18 Jun 2026	Caspian	Finnkjerka	4 h 0 min
10 Jun 2026	Caspian	Brattberg	2 h 35 min
02 Jun 2026	Grotanger	Holmen	2 h 52 min
26 May 2026	Grotanger	Rotvika	1 h 53 min
11 May 2026	Grotanger	Brattberg	2 h 53 min
04 May 2026	Grotanger	Rotvika	4 h 3 min
16 Mar 2026	Caspian	Rotvika	6 h 47 min
12 Nov 2025	Grotanger	Breivoll	11 h 46 min
29 Sep 2025	Grotanger	Brattberg	10 h 30 min

Show 16 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
28 Sep 2025	Grotanger	Brattberg	16 h 17 min
05 May 2025	Caspian	Salangslia	2 h 14 min
04 May 2025	Caspian	Salangslia	2 h 32 min
16 Sep 2024	Grotanger	Hallvardsøya	3 h 27 min
02 Sep 2024	Grotanger	Værnes	2 h 0 min
28 Aug 2024	Grotanger	Sortevika	2 h 4 min
18 Aug 2024	Grotanger	Breivoll	2 h 33 min
10 Aug 2024	Grotanger	Hallvardsøya	3 h 24 min
25 Jul 2024	Grotanger	Mjøsund Vest	5 h 5 min
19 Jun 2024	Grotanger	Rotvika	3 h 5 min
13 Jun 2024	Grotanger	Kjeiprød	1 h 28 min
01 Jun 2024	Grotanger	Skatleia	1 h 37 min
12 May 2024	Grotanger	Jennskarbotn	6 h 41 min
11 May 2024	Grotanger	Trollvika	4 h 55 min
04 Jan 2024	Grotanger	Breivoll	16 h 33 min
03 Jan 2024	Grotanger	Breivoll	3 h 19 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
Egil Kristoffersen & Sønner AS	Week 34, 2023	Week 1, 2026
Egil Kristoffersen & Sønner AS Avd Produksjon	Week 2, 2026	Week 28, 2026

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

Licences

Site MAB: 4,680 tonnes

Licence	Type	Capacity	Holder
N BØ 0003	Kommersiell / matfiskSalmon, Rainbow trout, Trout	796 t	Egil Kristoffersen & Sønner AS
N BØ 0004	Kommersiell / matfiskSalmon, Rainbow trout, Trout	796 t	Egil Kristoffersen & Sønner AS
N BØ 0009	Kommersiell / matfiskSalmon, Rainbow trout, Trout	796 t	Egil Kristoffersen & Sønner AS
N BØ 0021	Kommersiell / matfiskSalmon, Rainbow trout, Trout	796 t	Egil Kristoffersen & Sønner AS
N L 0004	Kommersiell / matfiskSalmon, Rainbow trout, Trout	1,362 t	Lovundlaks Sjø AS

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