Havsundet

Site 30897 · Ørland municipality · Production area 6, Nordmøre og Sør-Trøndelag

Status unknown: not reported in week 39Operated by Mowi ASA · group Mowi

Broodstock site: the limit may differ from the general one.

unknownAdult female lice per fishNo count in week 39. Latest: 0.00 in week 10, 2026Week 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026

0Weeks above the limit in 2026of 10 weeks with a count · broodstock: limit may differCalculated 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

3Wellboat visits in 2026by 2 different vessels · latest 04 Mar 2026Derived from AIS · Norwegian Coastal Administration (AIS) · updated 01 Oct 2026

1Escapes reported15 salmon, May 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. Broodstock site: the limit may differ from the general one.

2026

Source: Norwegian Food Safety Authority, weekly lice counts reported by the companies · Limit: Regulation on sea lice control § 8 · Updated 01 Oct 2026Broodstock site: the limit may differ from the general one.

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Adult female lice per fish per week, 2026
Week	Adult female lice per fish	Lice limit	Status
1	0.10	0.5	Below the limit
2	0.05	0.5	Below the limit
3	0.10	0.5	Below the limit
4	0.10	0.5	Below the limit
5	0.17	0.5	Below the limit
6	0.15	0.5	Below the limit
7	0.35	0.5	Below the limit
8	0.10	0.5	Below the limit
9	0.10	0.5	Below the limit
10	0.00	0.5	Below the limit
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	unknown	0.5	Not reported

Earlier years

20250 of 52 weeks with a count above the limit

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Adult female lice per fish per week, 2025
Week	Adult female lice per fish	Lice limit	Status
1	0.19	0.5	Below the limit
2	0.04	0.5	Below the limit
3	0.04	0.5	Below the limit
4	0.09	0.5	Below the limit
5	0.09	0.5	Below the limit
6	0.04	0.5	Below the limit
7	0.06	0.5	Below the limit
8	0.06	0.5	Below the limit
9	0.09	0.5	Below the limit
10	0.09	0.5	Below the limit
11	0.12	0.5	Below the limit
12	0.39	0.5	Below the limit
13	0.27	0.5	Below the limit
14	0.03	0.5	Below the limit
15	0.02	0.5	Below the limit
16	0.01	0.2	Below the limit
17	0.01	0.2	Below the limit
18	0.01	0.2	Below the limit
19	0.02	0.2	Below the limit
20	0.04	0.2	Below the limit
21	0.00	0.2	Below the limit
22	0.04	0.5	Below the limit
23	0.05	0.5	Below the limit
24	0.08	0.5	Below the limit
25	0.11	0.5	Below the limit
26	0.07	0.5	Below the limit
27	0.13	0.5	Below the limit
28	0.23	0.5	Below the limit
29	0.46	0.5	Near the limit
30	0.21	0.5	Below the limit
31	0.44	0.5	Near the limit
32	0.45	0.5	Near the limit
33	0.41	0.5	Near the limit
34	0.49	0.5	Near the limit
35	0.31	0.5	Below the limit
36	0.19	0.5	Below the limit
37	0.28	0.5	Below the limit
38	0.21	0.5	Below the limit
39	0.15	0.5	Below the limit
40	0.24	0.5	Below the limit
41	0.11	0.5	Below the limit
42	0.03	0.5	Below the limit
43	0.14	0.5	Below the limit
44	0.28	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	0.00	0.5	Below the limit
49	0.03	0.5	Below the limit
50	0.08	0.5	Below the limit
51	0.05	0.5	Below the limit
52	0.05	0.5	Below the limit

20240 of 35 weeks with a count above the limit

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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	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	0.00	0.5	Below the limit
24	0.00	0.5	Below the limit
25	0.00	0.5	Below the limit
26	0.01	0.5	Below the limit
27	0.00	0.5	Below the limit
28	0.11	0.5	Below the limit
29	0.01	0.5	Below the limit
30	0.04	0.5	Below the limit
31	0.05	0.5	Below the limit
32	0.03	0.5	Below the limit
33	0.02	0.5	Below the limit
34	0.01	0.5	Below the limit
35	0.03	0.5	Below the limit
36	0.07	0.5	Below the limit
37	0.03	0.5	Below the limit
38	0.03	0.5	Below the limit
39	0.03	0.5	Below the limit
40	0.01	0.5	Below the limit
41	0.07	0.5	Below the limit
42	0.10	0.5	Below the limit
43	0.08	0.5	Below the limit
44	0.08	0.5	Below the limit
45	0.07	0.5	Below the limit
46	0.06	0.5	Below the limit
47	0.27	0.5	Below the limit
48	0.12	0.5	Below the limit
49	0.14	0.5	Below the limit
50	0.32	0.5	Below the limit
51	0.23	0.5	Below the limit
52	0.14	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 45, 2025
Thermal delousingWhole site
Week 41, 2025
Mechanical delousingWhole site
Week 38, 2025
Mechanical delousingWhole site
Week 30, 2025
Mechanical delousingWhole site

Show all 7

Week 26, 2025
Mechanical delousingWhole site
Week 14, 2025
Thermal delousingWhole site
Week 2, 2025
Thermal delousing4 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

11 May 2016
15 salmon escapedCause: Slange · recaptured 1 · Directorate of Fisheries

Wellboat visits

3 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
04 Mar 2026	Froy Saga	no other farm	2 h 54 min
22 Feb 2026	Freyja	Rønstad	3 h 5 min
01 Feb 2026	Froy Saga	Leite	1 h 48 min
03 Nov 2025	Freyja	Munkskjæra	11 h 3 min
15 Oct 2025	Freyja	Rundklumpen	3 h 18 min
05 Oct 2025	Njord Kya	Ilsøya 2	1 h 44 min
31 Aug 2025	Froy Jarl	Persflua disease or zone there	13 h 22 min
30 Aug 2025	Froy Jarl	Persflua disease or zone there	8 h 0 min
05 Apr 2025	Ro Fjell	Kråknes	19 h 13 min
04 Apr 2025	Ro Fjell	Kråknes	9 h 32 min
03 Apr 2025	Ro Fjell	Kråknes	11 h 37 min
14 Dec 2024	Freyja	Leite	1 h 11 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
ST B 0008	Kommersiell / stamfiskSalmon	780 t	Mowi ASA
ST B 0014	Kommersiell / stamfiskSalmon	780 t	Mowi ASA
ST B 0015	Kommersiell / stamfiskSalmon	780 t	Mowi ASA

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