Heggvika

Site 13503 · Hitra municipality · Production area 6, Nordmøre og Sør-Trøndelag

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

0.01Adult 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 26 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026

2Lice treatments in 2026Latest: Thermal delousing, week 1, 20262026 · Norwegian Food Safety Authority · updated 01 Oct 2026

0Active disease casesNone active · 2 earlierRegister since 26 Nov 2024 · Norwegian Food Safety Authority · updated 01 Oct 2026

12Wellboat visits in 2026by 3 different vessels · latest 06 Sep 2026Derived from AIS · Norwegian Coastal Administration (AIS) · updated 01 Oct 2026

1Escapes reported4,800 salmon, August 2019Since 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	0.09	0.5	Below the limit
2	0.09	0.5	Below the limit
3	0.07	0.5	Below the limit
4	0.09	0.5	Below the limit
5	0.08	0.5	Below the limit
6	0.08	0.5	Below the limit
7	0.09	0.5	Below the limit
8	0.05	0.5	Below the limit
9	0.04	0.5	Below the limit
10	0.08	0.5	Below the limit
11	0.09	0.5	Below the limit
12	0.08	0.5	Below the limit
13	0.11	0.5	Below the limit
14	0.12	0.5	Below the limit
15	0.15	0.5	Below the limit
16	0.17	0.2	Near the limit
17	0.19	0.2	Near the limit
18	0.19	0.2	Near 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	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	0.00	0.5	Below the limit
36	0.00	0.5	Below the limit
37	0.01	0.5	Below the limit
38	0.01	0.5	Below the limit
39	0.01	0.5	Below the limit

Earlier years

20254 of 52 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	0.01	0.5	Below the limit
2	0.01	0.5	Below the limit
3	0.01	0.5	Below the limit
4	0.01	0.5	Below the limit
5	0.01	0.5	Below the limit
6	0.01	0.5	Below the limit
7	0.02	0.5	Below the limit
8	0.03	0.5	Below the limit
9	0.04	0.5	Below the limit
10	0.04	0.5	Below the limit
11	0.02	0.5	Below the limit
12	0.04	0.5	Below the limit
13	0.03	0.5	Below the limit
14	0.05	0.5	Below the limit
15	0.08	0.5	Below the limit
16	0.01	0.2	Below the limit
17	0.09	0.2	Below the limit
18	0.11	0.2	Below the limit
19	0.12	0.2	Below the limit
20	0.12	0.2	Below the limit
21	0.12	0.2	Below the limit
22	0.12	0.5	Below the limit
23	0.12	0.5	Below the limit
24	0.18	0.5	Below the limit
25	0.19	0.5	Below the limit
26	0.34	0.5	Below the limit
27	0.24	0.5	Below the limit
28	0.22	0.5	Below the limit
29	0.37	0.5	Below the limit
30	0.33	0.5	Below the limit
31	0.26	0.5	Below the limit
32	0.31	0.5	Below the limit
33	0.49	0.5	Near the limit
34	1.02	0.5	Above the limit
35	2.21	0.5	Above the limit
36	1.24	0.5	Above the limit
37	0.30	0.5	Below the limit
38	0.36	0.5	Below the limit
39	0.33	0.5	Below the limit
40	0.22	0.5	Below the limit
41	1.83	0.5	Above the limit
42	0.49	0.5	Near the limit
43	0.37	0.5	Below the limit
44	0.26	0.5	Below the limit
45	0.02	0.5	Below the limit
46	0.10	0.5	Below the limit
47	0.10	0.5	Below the limit
48	0.05	0.5	Below the limit
49	0.11	0.5	Below the limit
50	0.07	0.5	Below the limit
51	0.05	0.5	Below the limit
52	0.08	0.5	Below the limit

20240 of 14 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	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	0.00	0.5	Below the limit
40	0.00	0.5	Below the limit
41	0.00	0.5	Below the limit
42	0.00	0.5	Below the limit
43	0.00	0.5	Below the limit
44	0.00	0.5	Below the limit
45	0.00	0.5	Below the limit
46	0.00	0.5	Below the limit
47	0.00	0.5	Below the limit
48	0.01	0.5	Below the limit
49	0.00	0.5	Below the limit
50	0.05	0.5	Below the limit
51	0.01	0.5	Below the limit
52	0.01	0.5	Below the limit

20230 of 12 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	0.14	0.5	Below the limit
41	0.36	0.5	Below the limit
42	0.32	0.5	Below the limit
43	0.14	0.5	Below the limit
44	0.27	0.5	Below the limit
45	0.34	0.5	Below the limit
46	0.19	0.5	Below the limit
47	0.31	0.5	Below the limit
48	0.28	0.5	Below the limit
49	0.24	0.5	Below the limit
50	0.44	0.5	Near the limit
51	0.35	0.5	Below the limit
52	unknown	0.5	Not reported

Treatments

Norwegian Food Safety Authority

Week 1, 2026
Mechanical delousing, Thermal delousing2 pens
Week 48, 2025
Mechanical delousingWhole site
Week 45, 2025
Thermal delousingWhole site
Week 43, 2025
Mechanical delousingWhole site

Show all 21

Week 42, 2025
Mechanical delousing3 pens
Week 41, 2025
Mechanical delousing4 pens
Week 40, 2025
Mechanical delousing7 pens
Week 39, 2025
Mechanical delousing5 pens
Week 37, 2025
Thermal delousing, Mechanical delousing6 pens
Week 36, 2025
Mechanical delousing6 pens
Week 35, 2025
Mechanical delousing1 pen
Week 34, 2025
Mechanical delousing4 pens
Week 32, 2025
Mechanical delousing1 pen
Week 31, 2025
Mechanical delousing1 pen
Week 30, 2025
Mechanical delousing4 pens
Week 27, 2025
Thermal delousing2 pens
Week 26, 2025
Thermal delousing1 pen
Week 46, 2023
Mechanical delousing3 pens
Week 43, 2023
Mechanical delousing4 pens
Week 42, 2023
Mechanical delousing2 pens
Week 40, 2023
Mechanical delousing3 pens

Disease

Norwegian Food Safety Authority

03 Aug 2026
Bacterial kidney disease (BKD): closedstarted 23 Mar 2026 · Norwegian Food Safety Authority
03 Aug 2026
Pancreas disease (PD): closedSubtype SAV2 · started 19 Jan 2026 · Norwegian Food Safety Authority

Escapes

Directorate of Fisheries

08 Aug 2019
4,800 salmon escapedCause: Håndtering · recaptured 1 · Directorate of Fisheries

Wellboat visits

12 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
06 Sep 2026	Ronja Evolution	Kåholmen	1 h 23 min
06 Sep 2026	Ronja Mistral	Eggesbønes	2 h 1 min
05 Sep 2026	Ronja Mistral	Eggesbønes	3 h 17 min
05 Sep 2026	Ronja Evolution	Kåholmen	4 h 28 min
03 Sep 2026	Ronja Mistral	Eggesbønes	2 h 56 min
03 Sep 2026	Ronja Evolution	Kåholmen	3 h 35 min
01 Sep 2026	Ronja Mistral	Eggesbønes	1 h 47 min
01 Sep 2026	Ronja Evolution	Kåholmen	2 h 59 min
27 Aug 2026	Ronja Evolution	Varden	2 h 33 min
26 Aug 2026	Ronja Evolution	Varden	3 h 2 min
04 Jan 2026	Froy Saga	no other farm	23 h 12 min
03 Jan 2026	Froy Saga	Korsholman	10 h 21 min

Show 26 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
03 Nov 2025	Froy Saga	Kåholmen	6 h 5 min
14 Sep 2025	Froy Saga	Kveitskjeret	19 h 14 min
13 Sep 2025	Froy Saga	Kveitskjeret	17 h 25 min
09 Sep 2025	Froy Saga	Kveitskjeret	13 h 31 min
08 Sep 2025	Froy Saga	Kveitskjeret	15 h 49 min
02 Sep 2025	Froy Jarl	Havsundet	5 h 49 min
01 Sep 2025	Froy Jarl	Havsundet	3 h 30 min
04 Aug 2025	Froy Saga	Kveitskjeret	23 h 30 min
04 Aug 2025	Froy Saga	Kveitskjeret	44 min
03 Aug 2025	Froy Saga	Kveitskjeret	12 h 53 min
02 Aug 2025	Froy Saga	Kveitskjeret	22 h 41 min
01 Aug 2025	Froy Saga	Kveitskjeret	12 h 18 min
31 Jul 2025	Froy Saga	Kveitskjeret	6 h 38 min
02 Jul 2025	Froy Saga	Lønngrunnen	3 h 5 min
02 Jul 2025	Froy Saga	Lønngrunnen	5 h 57 min
01 Jul 2025	Froy Saga	Lønngrunnen	9 h 26 min
01 Jul 2025	Freyja	Mannbruholmen	8 h 54 min
28 Jun 2025	Freyja	Mannbruholmen	3 h 15 min
27 Jun 2025	Freyja	Mannbruholmen	10 h 28 min
15 Jun 2025	Froy Saga	no other farm	22 h 3 min
14 Jun 2025	Froy Saga	no other farm	7 h 59 min
13 Oct 2024	Ronja Evolution	Rundreimstranda	2 h 22 min
11 Oct 2024	Ronja Evolution	Rundreimstranda	4 h 47 min
23 Sep 2024	Ronja Evolution	Smedholmen	2 h 2 min
22 Sep 2024	Ronja Evolution	Smedholmen	4 h 17 min
21 Sep 2024	Ronja Evolution	Smedholmen	3 h 33 min

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

Licences

Site MAB: 4,680 tonnes

Licence	Type	Capacity	Holder
ST F 0029	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Mowi Seawater Norway AS
ST F 0032	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Mowi Seawater Norway AS
ST H 0005	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Mowi Seawater Norway AS
ST H 0014	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Mowi Seawater Norway AS
ST H 0020	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Mowi Seawater Norway AS
ST H 0025	Kommersiell / matfiskSalmon, Rainbow trout, Trout	788 t	Mowi Seawater Norway AS

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