Høysteinen

Site 19939 · Kvinnherad municipality · Production area 3, Karmøy til Sotra

Near the lice limit, week 39Operated by Mowi Seawater Norway AS · group Mowi

0.46Adult female lice per fishLimit 0.50 · near the limitWeek 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026

0Weeks above the limit in 2026of 25 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026

5Lice treatments in 2026Latest: Thermal delousing, week 39, 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

11Wellboat visits in 2026by 3 different vessels · latest 07 Aug 2026Derived from AIS · Norwegian Coastal Administration (AIS) · updated 01 Oct 2026

1Escapes reported5 salmon, November 2016Since 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	unknown	0.5	Not reported
13	unknown	0.5	Not reported
14	unknown	0.5	Not reported
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	0.01	0.5	Below the limit
24	0.09	0.5	Below the limit
25	0.20	0.5	Below the limit
26	0.30	0.5	Below the limit
27	0.47	0.5	Near the limit
28	0.06	0.5	Below the limit
29	0.04	0.5	Below the limit
30	0.11	0.5	Below the limit
31	0.39	0.5	Below the limit
32	0.14	0.5	Below the limit
33	0.08	0.5	Below the limit
34	0.05	0.5	Below the limit
35	0.09	0.5	Below the limit
36	0.18	0.5	Below the limit
37	0.19	0.5	Below the limit
38	0.47	0.5	Near the limit
39	0.46	0.5	Near the limit

Earlier years

20250 of 11 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	0.43	0.5	Near the limit
2	0.43	0.5	Near the limit
3	0.41	0.5	Near the limit
4	0.36	0.5	Below the limit
5	0.06	0.5	Below the limit
6	0.17	0.5	Below the limit
7	0.06	0.5	Below the limit
8	0.24	0.5	Below the limit
9	0.27	0.5	Below the limit
10	0.10	0.5	Below the limit
11	0.33	0.5	Below the limit
12	unknown	0.5	Reported without a count
13	unknown	0.5	Reported without a count
14	unknown	0.5	Reported without a count
15	unknown	0.5	Not reported
16	unknown	0.2	Not reported
17	unknown	0.2	Not reported
18	unknown	0.2	Not reported
19	unknown	0.2	Not reported
20	unknown	0.2	Not reported
21	unknown	0.2	Not reported
22	unknown	0.5	Not reported
23	unknown	0.5	Not reported
24	unknown	0.5	Not reported
25	unknown	0.5	Not reported
26	unknown	0.5	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

20240 of 38 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	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	0.10	0.5	Below the limit
23	0.07	0.5	Below the limit
24	0.05	0.5	Below the limit
25	0.07	0.5	Below the limit
26	0.16	0.5	Below the limit
27	0.33	0.5	Below the limit
28	0.35	0.5	Below the limit
29	0.07	0.5	Below the limit
30	0.12	0.5	Below the limit
31	0.09	0.5	Below the limit
32	0.14	0.5	Below the limit
33	0.48	0.5	Near the limit
34	0.47	0.5	Near the limit
35	0.29	0.5	Below the limit
36	0.36	0.5	Below the limit
37	0.35	0.5	Below the limit
38	0.29	0.5	Below the limit
39	0.29	0.5	Below the limit
40	0.37	0.5	Below the limit
41	0.35	0.5	Below the limit
42	0.48	0.5	Near the limit
43	0.36	0.5	Below the limit
44	0.12	0.5	Below the limit
45	0.33	0.5	Below the limit
46	0.25	0.5	Below the limit
47	0.36	0.5	Below the limit
48	0.40	0.5	Near the limit
49	0.07	0.5	Below the limit
50	0.31	0.5	Below the limit
51	0.24	0.5	Below the limit
52	0.35	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 39, 2026
Thermal delousing2 pens
Week 32, 2026
Thermal delousing2 pens
Week 31, 2026
Mechanical delousing2 pens
Week 28, 2026
Mechanical delousing3 pens

Show all 18

Week 27, 2026
Mechanical delousing2 pens
Week 3, 2025
Thermal delousing1 pen
Week 2, 2025
Thermal delousing1 pen
Week 48, 2024
Medicinal bath5 pens · Azamethiphos
Week 46, 2024
Mechanical delousing1 pen
Week 44, 2024
Thermal delousing3 pens
Week 43, 2024
Mechanical delousing2 pens
Week 42, 2024
Thermal delousing1 pen
Week 35, 2024
Thermal delousing2 pens
Week 34, 2024
Thermal delousing3 pens
Week 29, 2024
Mechanical delousing3 pens
Week 28, 2024
Mechanical delousing2 pens
Week 20, 2024
Medicinal feedWhole site · Emamectin benzoat
Week 19, 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

26 Nov 2016
5 salmon escapedCause: Annet · recaptured 1 · Directorate of Fisheries

Wellboat visits

11 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
07 Aug 2026	Froy Jarl	Bjørlykkestranda	11 h 28 min
06 Aug 2026	Froy Jarl	Bjørlykkestranda	11 h 1 min
04 Aug 2026	Froy Jarl	Bjørlykkestranda	2 h 18 min
03 Aug 2026	Froy Jarl	Bjørlykkestranda	11 h 10 min
02 Aug 2026	Froy Jarl	Bjørlykkestranda	8 h 59 min
01 Aug 2026	Froy Jarl	Bjørlykkestranda	9 h 42 min
06 Jul 2026	Ronja Mistral	Bjørlykkestranda	38 h 28 min
10 Apr 2026	Ronja Maloy	Åkre	2 h 25 min
09 Apr 2026	Froy Jarl	Munkholmen	1 h 34 min
09 Apr 2026	Ronja Maloy	Åkre	1 h 29 min
08 Apr 2026	Froy Jarl	Munkholmen	1 h 38 min
03 Apr 2025	Ronja Merdoe	Kobbavika	4 h 17 min

Show 44 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
02 Apr 2025	Tauranga	Kobbavika	8 h 17 min
01 Apr 2025	Ronja Merdoe	Kobbavika	6 h 9 min
26 Mar 2025	Ronja Merdoe	Kobbavika	5 h 58 min
23 Mar 2025	Ronja Merdoe	Djupevik	6 h 32 min
09 Mar 2025	Ronja Merdoe	Kjeahola	9 h 53 min
02 Mar 2025	Ronja Merdoe	Skipningsdalen	8 h 4 min
27 Feb 2025	Ronja Merdoe	Skipningsdalen	3 h 23 min
26 Feb 2025	Tauranga	Skipningsdalen	8 h 17 min
03 Feb 2025	Tauranga	Munkholmen	7 h 42 min
30 Jan 2025	Ronja Merdoe	Munkholmen	8 h 21 min
18 Jan 2025	Ronja Maloy	Trommo	15 h 57 min
17 Jan 2025	Ronja Maloy	Trommo	4 h 56 min
05 Jan 2025	Ronja Maloy	Trommo	11 h 14 min
04 Jan 2025	Ronja Maloy	Trommo	10 h 33 min
02 Jan 2025	Ronja Maloy	Trommo	19 h 17 min
29 Nov 2024	Ronja Maloy	Pinnen	5 h 29 min
28 Nov 2024	Ronja Maloy	Pinnen	5 h 5 min
28 Nov 2024	Ronja Maloy	Pinnen	4 h 32 min
28 Nov 2024	Ronja Maloy	Pinnen	7 h 11 min
27 Nov 2024	Ronja Maloy	Pinnen	8 h 4 min
27 Nov 2024	Ronja Maloy	Pinnen	5 h 27 min
26 Nov 2024	Ronja Maloy	Pinnen	6 h 58 min
26 Nov 2024	Ronja Maloy	Pinnen	5 h 22 min
25 Nov 2024	Ronja Maloy	Pinnen	1 h 18 min
25 Nov 2024	Ronja Maloy	Pinnen	4 h 47 min
17 Nov 2024	Ronja Queen	Øklandsvågen	5 h 10 min
01 Nov 2024	Freyja	Skipningsdalen	14 h 23 min
30 Oct 2024	Freyja	Skipningsdalen	11 h 27 min
29 Oct 2024	Freyja	Skipningsdalen	13 h 24 min
17 Oct 2024	Ronja Boroy	Bjørlykkestranda	10 h 41 min
16 Oct 2024	Ronja Boroy	Bjørlykkestranda	7 h 19 min
28 Aug 2024	Freyja	Aldalen	22 h 37 min
27 Aug 2024	Freyja	Aldalen	10 h 38 min
24 Aug 2024	Freyja	Aldalen	11 h 18 min
23 Aug 2024	Freyja	Aldalen	4 h 44 min
18 Jul 2024	Ronja Azul	Skorpeosen	9 h 13 min
17 Jul 2024	Ronja Azul	Skorpeosen	10 h 44 min
16 Jul 2024	Ronja Azul	Skorpeosen	9 h 19 min
14 Jul 2024	Ronja Azul	Skorpeosen	34 h 43 min
09 Apr 2024	Ronja Maloy	Trommo	3 h 21 min
08 Apr 2024	Ronja Mistral	Vikane 1	1 h 39 min
07 Apr 2024	Ronja Maloy	Trommo	1 h 28 min
07 Apr 2024	Ronja Mistral	Vikane 1	1 h 42 min
06 Apr 2024	Ronja Maloy	Trommo	5 h 32 min

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

Licences

Site MAB: 3,120 tonnes

Licence	Type	Capacity	Holder
H E 0005	Kommersiell / matfiskSalmon, Rainbow trout, Trout	689 t	Mowi Seawater Norway AS
H F 0007	Kommersiell / matfiskSalmon, Rainbow trout, Trout	689 t	Mowi Seawater Norway AS
H F 0008	Kommersiell / matfiskSalmon, Rainbow trout, Trout	2,068 t	Mowi Seawater Norway AS
H F 0009	Kommersiell / matfiskSalmon, Rainbow trout, Trout	2,068 t	Mowi Seawater Norway AS
H F 0010	Kommersiell / matfiskSalmon, Rainbow trout, Trout	689 t	Mowi Seawater Norway AS
H F 0011	Kommersiell / matfiskSalmon, Rainbow trout, Trout	689 t	Mowi Seawater Norway AS
H J 0004	Kommersiell / matfiskSalmon, Rainbow trout, Trout	689 t	Mowi Seawater Norway AS
H J 0005	Kommersiell / matfiskSalmon, Rainbow trout, Trout	689 t	Mowi Seawater Norway AS
H K 0028	Kommersiell / matfiskSalmon, Rainbow trout, Trout	1,447 t	Mowi Seawater Norway AS
H K 0037	Kommersiell / matfiskSalmon, Rainbow trout, Trout	689 t	Mowi Seawater Norway AS
H K 0039	Kommersiell / matfiskSalmon, Rainbow trout, Trout	689 t	Mowi Seawater Norway AS

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