Mikkelsøya

Site 34277 · Bø i Nordland municipality · Production area 9, Vestfjorden og Vesterålen

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

unknownAdult female lice per fishNo count in week 39. Latest: 0.04 in week 23, 2025Week 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026

unknownWeeks above the limit in 2026No weeks with a count in 2026Calculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026

unknownLice treatments in 2026No lice reports in 20262026 · Norwegian Food Safety Authority · updated 01 Oct 2026

0Active disease casesNone active · 1 earlierRegister since 26 Nov 2024 · Norwegian Food Safety Authority · updated 01 Oct 2026

0Wellboat visits in 2026Latest visit 18 Dec 2024Derived 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.

2025

Source: Norwegian Food Safety Authority, weekly lice counts reported by the companies · Limit: Regulation on sea lice control § 8 · Updated 01 Oct 2026

Show as table

Adult female lice per fish per week, 2025
Week	Adult female lice per fish	Lice limit	Status
1	0.10	0.5	Below the limit
2	0.02	0.5	Below the limit
3	0.04	0.5	Below the limit
4	0.02	0.5	Below the limit
5	0.00	0.5	Below the limit
6	0.02	0.5	Below the limit
7	0.08	0.5	Below the limit
8	0.04	0.5	Below the limit
9	0.12	0.5	Below the limit
10	0.12	0.5	Below the limit
11	0.16	0.5	Below the limit
12	0.07	0.5	Below the limit
13	0.16	0.5	Below the limit
14	0.18	0.5	Below the limit
15	0.14	0.5	Below the limit
16	0.12	0.5	Below the limit
17	0.02	0.5	Below the limit
18	0.06	0.5	Below the limit
19	0.08	0.5	Below the limit
20	0.03	0.5	Below the limit
21	0.01	0.2	Below the limit
22	0.03	0.2	Below the limit
23	0.04	0.2	Below the limit
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	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

Earlier years

20240 of 20 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

Show as table

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	0.5	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	0.00	0.5	Below the limit
34	0.00	0.5	Below the limit
35	0.05	0.5	Below the limit
36	0.00	0.5	Below the limit
37	0.33	0.5	Below the limit
38	0.35	0.5	Below the limit
39	0.40	0.5	Near the limit
40	0.40	0.5	Near the limit
41	0.02	0.5	Below the limit
42	0.08	0.5	Below the limit
43	0.09	0.5	Below the limit
44	0.24	0.5	Below the limit
45	0.37	0.5	Below the limit
46	0.38	0.5	Below the limit
47	0.45	0.5	Near the limit
48	0.33	0.5	Below the limit
49	0.21	0.5	Below the limit
50	0.43	0.5	Near the limit
51	0.06	0.5	Below the limit
52	0.06	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 51, 2024
Thermal delousingWhole site
Week 44, 2024
Medicinal feed3 pens · Emamectin benzoat
Week 43, 2024
Medicinal feed2 pens · Emamectin benzoat
Week 41, 2024
Thermal delousing2 pens

Disease

Norwegian Food Safety Authority

24 Oct 2025
Infectious salmon anaemia (ISA): closedstarted 19 May 2025 · Norwegian Food Safety Authority

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
18 Dec 2024	Grotanger	Skatleia	5 h 4 min
17 Dec 2024	Grotanger	Skatleia	16 h 58 min
09 Oct 2024	Grotanger	Hysjorda	7 h 53 min

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

Licences

Site MAB: 1,560 tonnes

Licence	Type	Capacity	Holder
N BØ 0004	Kommersiell / matfiskSalmon, Rainbow trout, Trout	796 t	Egil Kristoffersen & Sønner AS
N BØ 0016	Kommersiell / matfiskSalmon, Rainbow trout, Trout	796 t	Egil Kristoffersen & Sønner AS

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