Trøan Bjørklibukta

Site 13677 · Heim municipality · Production area 6, Nordmøre og Sør-Trøndelag

Below the lice limit, week 39Operated by Aquagen AS · group unknown

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

0.02Adult female lice per fishLimit 0.50 · below the limitWeek 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026

1Weeks above the limit in 2026of 26 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

1Wellboat visits in 2026by 1 vessel · latest 01 Sep 2026Derived from AIS · Norwegian Coastal Administration (AIS) · updated 01 Oct 2026

2Escapes reported1 salmon, November 2018Since 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.

Show as table

Adult female lice per fish per week, 2026
Week	Adult female lice per fish	Lice limit	Status
1	0.21	0.5	Below the limit
2	0.06	0.5	Below the limit
3	0.05	0.5	Below the limit
4	0.04	0.5	Below the limit
5	0.06	0.5	Below the limit
6	0.05	0.5	Below the limit
7	0.05	0.5	Below the limit
8	0.05	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	0.01	0.5	Below the limit
13	0.03	0.5	Below the limit
14	0.01	0.5	Below the limit
15	0.01	0.5	Below the limit
16	0.00	0.2	Below the limit
17	0.01	0.2	Below the limit
18	0.23	0.2	Above the limit
19	0.03	0.2	Below the limit
20	0.03	0.2	Below the limit
21	0.02	0.2	Below the limit
22	0.04	0.5	Below the limit
23	unknown	0.5	Reported without a count
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	0.00	0.5	Below the limit
37	0.05	0.5	Below the limit
38	0.01	0.5	Below the limit
39	0.02	0.5	Below the limit

Earlier years

20255 of 38 weeks with a count above the limit

Show as table

Adult female lice per fish per week, 2025
Week	Adult female lice per fish	Lice limit	Status
1	0.09	0.5	Below the limit
2	0.18	0.5	Below the limit
3	0.43	0.5	Near the limit
4	0.40	0.5	Near the limit
5	0.14	0.5	Below the limit
6	0.14	0.5	Below the limit
7	0.14	0.5	Below the limit
8	0.20	0.5	Below the limit
9	0.23	0.5	Below the limit
10	0.13	0.5	Below the limit
11	0.19	0.5	Below the limit
12	0.26	0.5	Below the limit
13	0.35	0.5	Below the limit
14	0.20	0.5	Below the limit
15	0.40	0.5	Near the limit
16	0.28	0.2	Above the limit
17	0.23	0.2	Above the limit
18	0.15	0.2	Below the limit
19	0.25	0.2	Above the limit
20	0.45	0.2	Above the limit
21	0.80	0.2	Above the limit
22	0.40	0.5	Near the limit
23	0.40	0.5	Near the limit
24	0.10	0.5	Below the limit
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	0.40	0.5	Near the limit
40	0.45	0.5	Near the limit
41	0.38	0.5	Below the limit
42	0.41	0.5	Near the limit
43	0.41	0.5	Near the limit
44	0.42	0.5	Near the limit
45	0.31	0.5	Below the limit
46	0.10	0.5	Below the limit
47	0.43	0.5	Near the limit
48	0.11	0.5	Below the limit
49	0.14	0.5	Below the limit
50	0.13	0.5	Below the limit
51	0.10	0.5	Below the limit
52	0.12	0.5	Below the limit

202412 of 35 weeks with a count above the limit

Show as table

Adult female lice per fish per week, 2024
Week	Adult female lice per fish	Lice limit	Status
1	0.34	0.5	Below the limit
2	0.38	0.5	Below the limit
3	0.49	0.5	Near the limit
4	0.58	0.5	Above the limit
5	0.48	0.5	Near the limit
6	0.36	0.5	Below the limit
7	0.53	0.5	Above the limit
8	0.41	0.5	Near the limit
9	0.54	0.5	Above the limit
10	0.35	0.5	Below the limit
11	0.65	0.5	Above the limit
12	0.55	0.5	Above the limit
13	0.47	0.5	Near the limit
14	0.34	0.5	Below the limit
15	0.68	0.5	Above the limit
16	0.88	0.2	Above the limit
17	0.83	0.2	Above the limit
18	0.68	0.2	Above the limit
19	0.56	0.2	Above the limit
20	0.53	0.2	Above the limit
21	0.58	0.2	Above the limit
22	unknown	0.5	Reported without a count
23	unknown	0.5	Not reported
24	unknown	0.5	Not reported
25	unknown	0.5	Reported without a count
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	0.14	0.5	Below the limit
40	0.10	0.5	Below the limit
41	0.24	0.5	Below the limit
42	0.36	0.5	Below the limit
43	0.18	0.5	Below the limit
44	0.43	0.5	Near the limit
45	0.34	0.5	Below the limit
46	0.25	0.5	Below the limit
47	0.33	0.5	Below the limit
48	0.12	0.5	Below the limit
49	0.21	0.5	Below the limit
50	0.13	0.5	Below the limit
51	0.19	0.5	Below the limit
52	0.15	0.5	Below the limit

20231 of 4 weeks with a count above the limit (data from week 40)

Show as table

Adult female lice per fish per week, 2023
Week	Adult female lice per fish	Lice limit	Status
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	0.87	0.5	Above the limit
50	0.12	0.5	Below the limit
51	0.32	0.5	Below the limit
52	0.24	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

No treatments recorded since week 40, 2023.

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

09 Nov 2018
1 salmon escapedCause: Håndtering · recaptured 1 · Directorate of Fisheries
15 Feb 2017
1 salmon escapedCause: Ikke avklart · recaptured 1 · Directorate of Fisheries

Wellboat visits

1 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
01 Sep 2026	Njord Kya	Forrahammaren	2 h 53 min
14 Dec 2025	Njord Kya	Forrahammaren	1 h 14 min
27 Mar 2025	Njord Kya	Hårkallbåen	3 h 50 min
12 Oct 2024	Kristiansund	Gunnarøya	1 h 36 min
23 Sep 2024	Namsos	Forrahammaren	1 h 41 min
08 Jun 2024	Smola Vag	Rafdal	3 h 7 min
07 Jun 2024	Smola Vag	Rafdal	3 h 36 min

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

Licences

Site MAB: 780 tonnes

Licence	Type	Capacity	Holder
ST HE 0005	Kommersiell / stamfiskSalmon, Rainbow trout	780 t	Aquagen AS
ST HE 0019	Kommersiell / stamfiskSalmon, Rainbow trout	780 t	Aquagen AS
ST HE 0020	Kommersiell / stamfiskSalmon, Rainbow trout	780 t	Aquagen AS

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