Trommo

Site 10332 · Kvinnherad municipality · Production area 3, Karmøy til Sotra

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

0.04Adult 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 31 weeks with a countCalculated 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

8Wellboat visits in 2026by 3 different vessels · latest 08 Sep 2026Derived from AIS · Norwegian Coastal Administration (AIS) · updated 01 Oct 2026

1Escapes reported3 salmon, March 2021Since 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	0.00	0.5	Below the limit
11	0.00	0.5	Below the limit
12	0.00	0.5	Below the limit
13	0.00	0.5	Below the limit
14	0.00	0.5	Below the limit
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	0.02	0.2	Below the limit
22	0.01	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	0.00	0.5	Below the limit
27	0.01	0.5	Below the limit
28	0.00	0.5	Below the limit
29	0.01	0.5	Below the limit
30	0.03	0.5	Below the limit
31	0.48	0.5	Near the limit
32	0.08	0.5	Below the limit
33	0.02	0.5	Below the limit
34	0.03	0.5	Below the limit
35	0.01	0.5	Below the limit
36	0.00	0.5	Below the limit
37	0.09	0.5	Below the limit
38	0.03	0.5	Below the limit
39	0.04	0.5	Below the limit
40	0.02	0.5	Below the limit

Earlier years

20250 of 15 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	0.27	0.5	Below the limit
2	0.30	0.5	Below the limit
3	0.00	0.5	Below the limit
4	0.05	0.5	Below the limit
5	0.18	0.5	Below the limit
6	0.10	0.5	Below the limit
7	0.28	0.5	Below the limit
8	0.00	0.5	Below the limit
9	0.00	0.5	Below the limit
10	0.03	0.5	Below the limit
11	0.01	0.5	Below the limit
12	0.03	0.5	Below the limit
13	0.08	0.5	Below the limit
14	0.03	0.5	Below the limit
15	0.08	0.5	Below the limit
16	unknown	0.2	Reported without a count
17	unknown	0.2	Reported without a count
18	unknown	0.2	Reported without a count
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 40 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	0.00	0.5	Below the limit
14	0.00	0.5	Below the limit
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	0.06	0.5	Below the limit
23	0.12	0.5	Below the limit
24	0.11	0.5	Below the limit
25	0.03	0.5	Below the limit
26	0.03	0.5	Below the limit
27	0.02	0.5	Below the limit
28	0.11	0.5	Below the limit
29	0.06	0.5	Below the limit
30	0.12	0.5	Below the limit
31	0.08	0.5	Below the limit
32	0.01	0.5	Below the limit
33	0.04	0.5	Below the limit
34	0.02	0.5	Below the limit
35	0.02	0.5	Below the limit
36	0.00	0.5	Below the limit
37	0.00	0.5	Below the limit
38	0.02	0.5	Below the limit
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	0.05	0.5	Below the limit
43	0.04	0.5	Below the limit
44	0.09	0.5	Below the limit
45	0.14	0.5	Below the limit
46	0.11	0.5	Below the limit
47	0.40	0.5	Near the limit
48	0.40	0.5	Near the limit
49	0.18	0.5	Below the limit
50	0.32	0.5	Below the limit
51	0.20	0.5	Below the limit
52	0.25	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 8, 2025
Thermal delousingWhole site
Week 3, 2025
Thermal delousing1 pen
Week 2, 2025
Thermal delousing1 pen
Week 52, 2024
Thermal delousing1 pen

Show all 6

Week 49, 2024
Medicinal bath1 pen · Azamethiphos
Week 48, 2024
Medicinal bath1 pen · Azamethiphos

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

16 Mar 2021
3 salmon escapedCause: menneskelig svikt ombord brønnbåt - kluss med åpne/lukke ventiler · recaptured 1 · Directorate of Fisheries

Wellboat visits

8 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
08 Sep 2026	Tauranga	Munkholmen	11 h 21 min
24 May 2026	Mowi Star	Nystølvågen	3 h 52 min
23 May 2026	Mowi Star	Nystølvågen	46 min
08 Mar 2026	Ronja Maloy	Slåttenes	3 h 46 min
07 Mar 2026	Ronja Maloy	Slåttenes	3 h 7 min
06 Mar 2026	Ronja Maloy	Slåttenes	2 h 8 min
04 Mar 2026	Ronja Maloy	Slåttenes	3 h 4 min
03 Mar 2026	Ronja Maloy	Slåttenes	4 h 36 min
04 May 2025	Ronja Merdoe	Ringja	6 h 32 min
01 May 2025	Ronja Merdoe	Ringja	6 h 48 min
29 Apr 2025	Ronja Merdoe	Ringja	5 h 27 min
27 Apr 2025	Ronja Merdoe	Ringja	8 h 40 min

Show 32 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
23 Apr 2025	Ronja Merdoe	Ringja	8 h 27 min
13 Apr 2025	Ronja Merdoe	Vassvik	8 h 7 min
23 Feb 2025	Ronja Maloy	Smedholmen	15 h 13 min
22 Feb 2025	Ronja Maloy	Smedholmen	19 h 2 min
20 Feb 2025	Ronja Maloy	Smedholmen	26 h 34 min
19 Feb 2025	Ronja Maloy	Smedholmen	5 h 35 min
19 Feb 2025	Ronja Maloy	Smedholmen	52 min
18 Feb 2025	Ronja Maloy	Smedholmen	14 h 43 min
17 Feb 2025	Ronja Maloy	Smedholmen	12 h 56 min
12 Jan 2025	Ronja Maloy	Høysteinen	6 h 25 min
11 Jan 2025	Ronja Maloy	Høysteinen	14 h 20 min
31 Dec 2024	Ronja Maloy	Langavika	1 h 48 min
29 Dec 2024	Ronja Maloy	Langavika	30 h 45 min
03 Dec 2024	Ronja Boroy	Eggesbønes	4 h 7 min
02 Dec 2024	Ronja Boroy	Eggesbønes	7 h 48 min
02 Dec 2024	Ronja Boroy	Eggesbønes	6 h 51 min
02 Dec 2024	Ronja Boroy	Eggesbønes	1 h 56 min
29 Nov 2024	Ronja Boroy	Øklandsvågen	3 h 40 min
28 Nov 2024	Ronja Boroy	Skipningsdalen	3 h 58 min
26 Nov 2024	Tauranga	Åkre	8 h 5 min
23 Nov 2024	Tauranga	Buksevika	8 h 11 min
23 Nov 2024	Ronja Skilsoy	Eggesbønes	4 h 0 min
01 Nov 2024	Ronja Skilsoy	Eggesbønes	3 h 0 min
09 Oct 2024	Tauranga	Gulestø	7 h 32 min
24 Aug 2024	Neptun	Åkre	3 h 52 min
25 May 2024	Neptun	Åkre	1 h 12 min
25 May 2024	Navoey	Åkre	1 h 12 min
10 Apr 2024	Ronja Mistral	Høysteinen	1 h 17 min
27 Mar 2024	Ronja Maloy	Slåttenes	1 h 29 min
26 Mar 2024	Ronja Maloy	Slåttenes	1 h 29 min
25 Mar 2024	Ronja Maloy	Slåttenes	1 h 40 min
23 Mar 2024	Ronja Evolution	Kråknes	1 h 55 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