Tobbeholmane

Site 10054 · Austevoll municipality · Production area 3, Karmøy til Sotra

Below the lice limit, week 39Operated by Sjøtroll Havbruk Sjø AS · group Lerøy Seafood Group

0.06Adult 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 39 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026

5Lice treatments in 2026Latest: Freshwater treatment, week 38, 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

7Wellboat visits in 2026by 1 vessel · latest 01 Sep 2026Derived from AIS · Norwegian Coastal Administration (AIS) · updated 01 Oct 2026

1Escapes reported44 rainbow trout, October 2024Since 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	0.40	0.5	Near the limit
2	0.44	0.5	Near the limit
3	0.41	0.5	Near the limit
4	0.18	0.5	Below the limit
5	0.20	0.5	Below the limit
6	0.23	0.5	Below the limit
7	0.23	0.5	Below the limit
8	0.27	0.5	Below the limit
9	0.27	0.5	Below the limit
10	0.30	0.5	Below the limit
11	0.30	0.5	Below the limit
12	0.33	0.5	Below the limit
13	0.33	0.5	Below the limit
14	0.38	0.5	Below the limit
15	0.15	0.5	Below the limit
16	0.10	0.2	Below the limit
17	0.11	0.2	Below the limit
18	0.02	0.2	Below the limit
19	0.02	0.2	Below the limit
20	0.03	0.2	Below the limit
21	0.05	0.2	Below the limit
22	0.05	0.5	Below the limit
23	0.06	0.5	Below the limit
24	0.09	0.5	Below the limit
25	0.10	0.5	Below the limit
26	0.11	0.5	Below the limit
27	0.12	0.5	Below the limit
28	0.13	0.5	Below the limit
29	0.13	0.5	Below the limit
30	0.13	0.5	Below the limit
31	0.13	0.5	Below the limit
32	0.13	0.5	Below the limit
33	0.15	0.5	Below the limit
34	0.13	0.5	Below the limit
35	0.13	0.5	Below the limit
36	0.08	0.5	Below the limit
37	0.08	0.5	Below the limit
38	0.07	0.5	Below the limit
39	0.06	0.5	Below the limit

Earlier years

20250 of 26 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	0.37	0.5	Below the limit
2	0.42	0.5	Near the limit
3	0.10	0.5	Below the limit
4	0.16	0.5	Below the limit
5	0.23	0.5	Below the limit
6	0.16	0.5	Below the limit
7	0.04	0.5	Below the limit
8	0.01	0.5	Below the limit
9	0.01	0.5	Below the limit
10	0.04	0.5	Below the limit
11	0.08	0.5	Below the limit
12	0.17	0.5	Below the limit
13	0.21	0.5	Below the limit
14	0.17	0.5	Below the limit
15	0.15	0.5	Below the limit
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	Reported without a count
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	0.04	0.5	Below the limit
46	0.11	0.5	Below the limit
47	0.23	0.5	Below the limit
48	0.32	0.5	Below the limit
49	0.44	0.5	Near the limit
50	0.48	0.5	Near the limit
51	0.35	0.5	Below the limit
52	0.41	0.5	Near the limit

20243 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, 2024
Week	Adult female lice per fish	Lice limit	Status
1	0.00	0.5	Below the limit
2	0.00	0.5	Below the limit
3	0.01	0.5	Below the limit
4	0.00	0.5	Below the limit
5	0.01	0.5	Below the limit
6	0.01	0.5	Below the limit
7	0.03	0.5	Below the limit
8	0.04	0.5	Below the limit
9	0.04	0.5	Below the limit
10	0.12	0.5	Below the limit
11	0.05	0.5	Below the limit
12	0.06	0.5	Below the limit
13	0.18	0.5	Below the limit
14	0.09	0.5	Below the limit
15	0.09	0.5	Below the limit
16	0.10	0.2	Below the limit
17	0.08	0.2	Below the limit
18	0.11	0.2	Below the limit
19	0.06	0.2	Below the limit
20	0.05	0.2	Below the limit
21	0.08	0.2	Below the limit
22	0.10	0.5	Below the limit
23	0.09	0.5	Below the limit
24	0.08	0.5	Below the limit
25	0.14	0.5	Below the limit
26	0.24	0.5	Below the limit
27	0.17	0.5	Below the limit
28	0.27	0.5	Below the limit
29	0.35	0.5	Below the limit
30	0.13	0.5	Below the limit
31	0.17	0.5	Below the limit
32	0.20	0.5	Below the limit
33	2.83	0.5	Above the limit
34	1.24	0.5	Above the limit
35	0.35	0.5	Below the limit
36	0.19	0.5	Below the limit
37	0.23	0.5	Below the limit
38	0.38	0.5	Below the limit
39	0.31	0.5	Below the limit
40	0.76	0.5	Above the limit
41	0.29	0.5	Below the limit
42	0.02	0.5	Below the limit
43	0.07	0.5	Below the limit
44	0.25	0.5	Below the limit
45	0.48	0.5	Near the limit
46	0.13	0.5	Below the limit
47	0.17	0.5	Below the limit
48	0.38	0.5	Below the limit
49	0.48	0.5	Near the limit
50	0.20	0.5	Below the limit
51	0.14	0.5	Below the limit
52	0.11	0.5	Below the limit

20230 of 4 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	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	Reported without a count
49	0.00	0.5	Below the limit
50	0.00	0.5	Below the limit
51	0.00	0.5	Below the limit
52	0.00	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 38, 2026
Thermal delousing, Freshwater treatment2 pens
Week 36, 2026
Freshwater treatment, Thermal delousing2 pens
Week 15, 2026
Freshwater treatment, Thermal delousing8 pens
Week 4, 2026
Thermal delousing, Freshwater treatment6 pens

Show all 23

Week 46, 2025
Medicinal feedWhole site · Emamectin benzoat
Week 7, 2025
Thermal delousing1 pen
Week 6, 2025
Thermal delousing4 pens
Week 3, 2025
Thermal delousing2 pens
Week 2, 2025
Thermal delousing4 pens
Week 50, 2024
Thermal delousing2 pens
Week 49, 2024
Thermal delousing3 pens
Week 45, 2024
Thermal delousing6 pens
Week 42, 2024
Thermal delousing3 pens
Week 41, 2024
Thermal delousing, Mechanical delousing6 pens
Week 40, 2024
Mechanical delousing3 pens
Week 38, 2024
Thermal delousing4 pens
Week 35, 2024
Thermal delousing4 pens
Week 34, 2024
Thermal delousingWhole site
Week 30, 2024
Thermal delousing4 pens
Week 29, 2024
Thermal delousing2 pens
Week 27, 2024
Thermal delousingWhole site
Week 23, 2024
Thermal delousingWhole site
Week 6, 2024
Medicinal feedWhole site · Emamectin benzoat

Disease

Norwegian Food Safety Authority

18 Jul 2025
Pancreas disease (PD): closedSubtype SAV3 · started 03 Jul 2024 · Norwegian Food Safety Authority

Escapes

Directorate of Fisheries

03 Oct 2024
44 rainbow trout escapedCause: Utløpsrenna flommet over pga en rist sperret utløpet. Fisk utover på dekk på båten og videre havnet noe på sjøen. · recaptured 1 · Directorate of Fisheries

Wellboat visits

7 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	Seigrunn	Hestabyneset	3 h 14 min
26 Apr 2026	Seigrunn	Ramsøy S	15 h 51 min
25 Apr 2026	Seigrunn	Ramsøy S	4 h 7 min
08 Apr 2026	Seigrunn	Sagen 2	19 h 53 min
07 Apr 2026	Seigrunn	Sagen 2	8 h 3 min
21 Jan 2026	Seigrunn	Sagen 2	3 h 3 min
20 Jan 2026	Seigrunn	Sagen 2	13 h 12 min
16 Dec 2025	Seifjell	Storebø	1 h 59 min
16 Dec 2025	Seifjell	Storebø	9 h 54 min
15 Dec 2025	Seifjell	Storebø	1 h 37 min
13 Oct 2025	Seifjell	Djupevika	9 h 3 min
12 Oct 2025	Seifjell	Djupevika	10 h 24 min

Show 8 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
11 Oct 2025	Seifjell	Djupevika	56 min
11 Oct 2025	Seifjell	Djupevika	1 h 25 min
11 Oct 2025	Seifjell	Djupevika	37 min
11 Oct 2025	Seifjell	Djupevika	50 min
29 Feb 2024	Navoey	Haugsnesvåg	2 h 39 min
28 Feb 2024	Navoey	Haugsnesvåg	10 h 19 min
27 Feb 2024	Navoey	Haugsnesvåg	8 h 23 min
26 Feb 2024	Navoey	Haugsnesvåg	3 h 17 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 AV 0011	Kommersiell / matfiskSalmon, Rainbow trout, Trout	1,378 t	Sjøtroll Havbruk Sjø AS
H AV 0014	Kommersiell / matfiskSalmon, Rainbow trout, Trout	689 t	Sjøtroll Havbruk Sjø AS
H AV 0020	Kommersiell / matfiskSalmon, Rainbow trout, Trout	689 t	Lerøy Vest Sjø AS
H AV 0021	Kommersiell / matfiskSalmon, Rainbow trout, Trout	689 t	Sjøtroll Havbruk Sjø AS
H AV 0024	Kommersiell / matfiskSalmon, Rainbow trout, Trout	689 t	Lerøy Vest Sjø AS
H AV 0040	Kommersiell / matfiskSalmon, Rainbow trout, Trout	689 t	Sjøtroll Havbruk Sjø AS
H O 0002	Kommersiell / matfiskSalmon, Rainbow trout, Trout	689 t	Lerøy Vest Sjø AS
H O 0010	Kommersiell / matfiskSalmon, Rainbow trout, Trout	689 t	Lerøy Vest Sjø AS

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