Gråtnes

Site 11907 · Sandnes municipality · Production area 2, Ryfylke

Status unknown: not reported in week 39Operated by Ewos Innovation AS · group unknown

unknownAdult female lice per fishNo count in week 39. Latest: 0.12 in week 38, 2026Week 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026

2Weeks above the limit in 2026of 38 weeks with a countCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026

3Lice treatments in 2026Latest: Other treatment, week 26, 20262026 · Norwegian Food Safety Authority · updated 01 Oct 2026

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

16Wellboat visits in 2026by 5 different vessels · latest 13 Aug 2026Derived from AIS · Norwegian Coastal Administration (AIS) · updated 01 Oct 2026

1Escapes reported1 torsk, October 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	0.06	0.5	Below the limit
2	0.09	0.5	Below the limit
3	0.17	0.5	Below the limit
4	0.31	0.5	Below the limit
5	0.16	0.5	Below the limit
6	0.40	0.5	Near the limit
7	0.39	0.5	Below the limit
8	0.28	0.5	Below the limit
9	0.21	0.5	Below the limit
10	0.24	0.5	Below the limit
11	0.26	0.5	Below the limit
12	0.19	0.5	Below the limit
13	0.23	0.5	Below the limit
14	0.18	0.5	Below the limit
15	0.22	0.5	Below the limit
16	0.32	0.2	Above the limit
17	0.06	0.2	Below the limit
18	0.08	0.2	Below the limit
19	0.08	0.2	Below the limit
20	0.04	0.2	Below the limit
21	0.05	0.2	Below the limit
22	0.10	0.5	Below the limit
23	0.47	0.5	Near the limit
24	0.44	0.5	Near the limit
25	0.46	0.5	Near the limit
26	0.12	0.5	Below the limit
27	0.09	0.5	Below the limit
28	0.10	0.5	Below the limit
29	0.26	0.5	Below the limit
30	0.47	0.5	Near the limit
31	0.47	0.5	Near the limit
32	0.84	0.5	Above the limit
33	0.09	0.5	Below the limit
34	0.03	0.5	Below the limit
35	0.02	0.5	Below the limit
36	0.02	0.5	Below the limit
37	0.10	0.5	Below the limit
38	0.12	0.5	Below the limit
39	unknown	0.5	Not reported

Earlier years

20251 of 33 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	0.36	0.5	Below the limit
3	0.31	0.5	Below the limit
4	0.48	0.5	Near the limit
5	0.59	0.5	Above the limit
6	0.10	0.5	Below the limit
7	0.02	0.5	Below the limit
8	0.04	0.5	Below the limit
9	0.01	0.5	Below the limit
10	0.02	0.5	Below the limit
11	0.04	0.5	Below the limit
12	0.07	0.5	Below the limit
13	0.11	0.5	Below the limit
14	0.13	0.5	Below the limit
15	0.14	0.5	Below the limit
16	0.15	0.2	Below the limit
17	0.18	0.2	Near the limit
18	0.17	0.2	Near the limit
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	0.00	0.5	Below the limit
35	0.00	0.5	Below the limit
36	0.00	0.5	Below the limit
37	0.00	0.5	Below the limit
38	0.00	0.5	Below the limit
39	0.00	0.5	Below the limit
40	unknown	0.5	Not reported
41	unknown	0.5	Not reported
42	0.00	0.5	Below the limit
43	unknown	0.5	Not reported
44	0.00	0.5	Below the limit
45	0.01	0.5	Below the limit
46	0.02	0.5	Below the limit
47	0.02	0.5	Below the limit
48	unknown	0.5	Not reported
49	0.01	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

20245 of 36 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	0.00	0.5	Below the limit
16	0.00	0.2	Below the limit
17	0.00	0.2	Below the limit
18	unknown	0.2	Not reported
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	0.01	0.5	Below the limit
23	0.05	0.5	Below the limit
24	0.03	0.5	Below the limit
25	0.04	0.5	Below the limit
26	0.13	0.5	Below the limit
27	0.40	0.5	Near the limit
28	0.04	0.5	Below the limit
29	0.04	0.5	Below the limit
30	0.24	0.5	Below the limit
31	0.35	0.5	Below the limit
32	0.30	0.5	Below the limit
33	1.36	0.5	Above the limit
34	1.25	0.5	Above the limit
35	1.98	0.5	Above the limit
36	0.27	0.5	Below the limit
37	0.24	0.5	Below the limit
38	0.26	0.5	Below the limit
39	0.44	0.5	Near the limit
40	0.46	0.5	Near the limit
41	0.46	0.5	Near the limit
42	0.80	0.5	Above the limit
43	0.73	0.5	Above the limit
44	0.18	0.5	Below the limit
45	unknown	0.5	Not reported
46	0.18	0.5	Below the limit
47	0.13	0.5	Below the limit
48	0.10	0.5	Below the limit
49	0.17	0.5	Below the limit
50	0.20	0.5	Below the limit
51	0.17	0.5	Below the limit
52	0.35	0.5	Below the limit

Treatments

Norwegian Food Safety Authority

Week 26, 2026
Other treatmentWhole site · Termolicer
Week 17, 2026
Freshwater treatment6 pens
Week 9, 2026
Medicinal bath6 pens · Azamethiphos
Week 6, 2025
Freshwater treatmentWhole site

Show all 6

Week 36, 2024
Mechanical delousingWhole site
Week 28, 2024
Thermal delousingWhole site

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

06 Oct 2021
1 torsk escapedCause: Maskebrudd i håv gjorde at 1 stk mindre fisk ca 150-200 gram gikk gjennom hullet, fisken ble forsøkt og håvet etter umiddelbart uten hell. Hullet ble fikset · recaptured 1 · Directorate of Fisheries

Wellboat visits

16 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
13 Aug 2026	Ronja Azul	Tollaksholmen	1 h 49 min
12 Aug 2026	Ronja Azul	Tollaksholmen	18 h 0 min
11 Aug 2026	Ronja Azul	Tollaksholmen	2 h 26 min
11 Aug 2026	Ronja Azul	Tollaksholmen	12 h 16 min
10 Aug 2026	Ronja Azul	Tollaksholmen	16 h 14 min
06 Aug 2026	Rostein	Langevågen	2 h 43 min
04 Aug 2026	Rostein	Djupeleget	1 h 31 min
29 Jul 2026	Rostein	Dyrholmen V	1 h 30 min
03 Jul 2026	Robas	Øklandsvågen	4 h 41 min
02 Jul 2026	Robas	Kastevika	1 h 21 min
26 Jun 2026	Rostein	Skaganeset	2 h 28 min
24 Jun 2026	Ro Venture	Tollaksholmen	24 h 25 min

Show 24 older visits

Arrival	Vessel	Previous farm (14 days)	Duration
22 Apr 2026	Ronja Azul	Ommundsteigen	27 h 54 min
24 Feb 2026	Ro Chief	Grytøyraholmen	2 h 41 min
23 Feb 2026	Ro Chief	Grytøyraholmen	3 h 31 min
23 Feb 2026	Ro Chief	Grytøyraholmen	2 h 5 min
16 Aug 2025	Langsund	Sørevik	8 h 23 min
18 May 2025	Rostein	Skaganeset	3 h 46 min
11 May 2025	Rostein	Langevågen	1 h 11 min
04 May 2025	Rostein	Djupevik	2 h 22 min
28 Apr 2025	Robas	Kvaløy Ø	1 h 27 min
27 Apr 2025	Robas	no other farm	1 h 13 min
26 Apr 2025	Rostein	Skaganeset	2 h 11 min
22 Apr 2025	Robris	Instefjord	54 min
12 Apr 2025	Rostein	Hesteneset	1 h 49 min
05 Apr 2025	Rostein	Smørdalen	1 h 27 min
04 Mar 2025	Rostein	Fyllingsnes S	52 min
19 Feb 2025	Rostein	Langevågen	1 h 24 min
12 Feb 2025	Rostein	Hondskår	3 h 2 min
03 Feb 2025	Ronja Azul	Rennaren	33 h 21 min
03 Feb 2025	Ronja Azul	Rennaren	11 h 57 min
02 Feb 2025	Ronja Azul	Rennaren	16 h 41 min
21 Jan 2025	Robas	Rotøy	1 h 20 min
20 Dec 2024	Robas	no other farm	1 h 20 min
29 Oct 2024	Ronja Azul	Store Teistholmen Ø	20 h 25 min
11 Apr 2024	Ro Chief	Nebbo	12 h 11 min

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

Licences

Site MAB: 1,000 tonnes

Licence	Type	Capacity	Holder
R G 0010	Forskning / matfiskSalmon, Rainbow trout, Trout	780 t	Ewos Innovation AS
R G 0013	Forskning / matfiskSalmon, Rainbow trout, Trout	780 t	Ewos Innovation AS

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