Mjølsvik
Site 26435 · Høyanger municipality · Production area 4, Nordhordland til Stadt
Below the lice limit, week 39Operated by Osland Seafood AS · group Osland
Broodstock site: the limit may differ from the general one.
0.11Adult female lice per fishLimit 0.50 · below the limit
0Weeks above the limit in 2026of 22 weeks with a count · broodstock: limit may differ
1Lice treatments in 2026Latest: Thermal delousing, week 28, 2026
0Active disease casesNone recorded
5Wellboat visits in 2026by 2 different vessels · latest 31 Aug 2026
0Escapes reportedNone reported
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
Show as table
| Week | Adult female lice per fish | Lice limit | Status |
|---|---|---|---|
| 1 | 0.05 | 0.5 | Below the limit |
| 2 | unknown | 0.5 | Reported without a count |
| 3 | unknown | 0.5 | Reported without a count |
| 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 | 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 | 0.00 | 0.5 | Below the limit |
| 23 | 0.00 | 0.5 | Below the limit |
| 24 | 0.03 | 0.5 | Below the limit |
| 25 | 0.30 | 0.5 | Below the limit |
| 26 | 0.13 | 0.5 | Below the limit |
| 27 | 0.46 | 0.5 | Near the limit |
| 28 | 0.03 | 0.5 | Below the limit |
| 29 | 0.03 | 0.5 | Below the limit |
| 30 | 0.07 | 0.5 | Below the limit |
| 31 | 0.30 | 0.5 | Below the limit |
| 32 | 0.18 | 0.5 | Below the limit |
| 33 | 0.10 | 0.5 | Below the limit |
| 34 | 0.13 | 0.5 | Below the limit |
| 35 | 0.05 | 0.5 | Below the limit |
| 36 | 0.14 | 0.5 | Below the limit |
| 37 | 0.08 | 0.5 | Below the limit |
| 38 | 0.13 | 0.5 | Below the limit |
| 39 | 0.11 | 0.5 | Below the limit |
Earlier years
20250 of 52 weeks with a count above the limit
Show as table
| Week | Adult female lice per fish | Lice limit | Status |
|---|---|---|---|
| 1 | 0.33 | 0.5 | Below the limit |
| 2 | 0.21 | 0.5 | Below the limit |
| 3 | 0.40 | 0.5 | Near the limit |
| 4 | 0.19 | 0.5 | Below the limit |
| 5 | 0.14 | 0.5 | Below the limit |
| 6 | 0.18 | 0.5 | Below the limit |
| 7 | 0.19 | 0.5 | Below the limit |
| 8 | 0.23 | 0.5 | Below the limit |
| 9 | 0.30 | 0.5 | Below the limit |
| 10 | 0.39 | 0.5 | Below the limit |
| 11 | 0.16 | 0.5 | Below the limit |
| 12 | 0.18 | 0.5 | Below the limit |
| 13 | 0.20 | 0.5 | Below the limit |
| 14 | 0.17 | 0.5 | Below the limit |
| 15 | 0.19 | 0.5 | Below the limit |
| 16 | 0.08 | 0.2 | Below the limit |
| 17 | 0.08 | 0.2 | Below the limit |
| 18 | 0.13 | 0.2 | Below the limit |
| 19 | 0.08 | 0.2 | Below the limit |
| 20 | 0.11 | 0.2 | Below the limit |
| 21 | 0.14 | 0.2 | Below the limit |
| 22 | 0.15 | 0.5 | Below the limit |
| 23 | 0.17 | 0.5 | Below the limit |
| 24 | 0.25 | 0.5 | Below the limit |
| 25 | 0.30 | 0.5 | Below the limit |
| 26 | 0.13 | 0.5 | Below the limit |
| 27 | 0.19 | 0.5 | Below the limit |
| 28 | 0.30 | 0.5 | Below the limit |
| 29 | 0.24 | 0.5 | Below the limit |
| 30 | 0.25 | 0.5 | Below the limit |
| 31 | 0.32 | 0.5 | Below the limit |
| 32 | 0.34 | 0.5 | Below the limit |
| 33 | 0.33 | 0.5 | Below the limit |
| 34 | 0.34 | 0.5 | Below the limit |
| 35 | 0.10 | 0.5 | Below the limit |
| 36 | 0.15 | 0.5 | Below the limit |
| 37 | 0.47 | 0.5 | Near the limit |
| 38 | 0.38 | 0.5 | Below the limit |
| 39 | 0.17 | 0.5 | Below the limit |
| 40 | 0.35 | 0.5 | Below the limit |
| 41 | 0.43 | 0.5 | Near the limit |
| 42 | 0.05 | 0.5 | Below the limit |
| 43 | 0.43 | 0.5 | Near the limit |
| 44 | 0.28 | 0.5 | Below the limit |
| 45 | 0.03 | 0.5 | Below the limit |
| 46 | 0.15 | 0.5 | Below the limit |
| 47 | 0.40 | 0.5 | Near the limit |
| 48 | 0.30 | 0.5 | Below the limit |
| 49 | 0.47 | 0.5 | Near the limit |
| 50 | 0.10 | 0.5 | Below the limit |
| 51 | 0.15 | 0.5 | Below the limit |
| 52 | 0.00 | 0.5 | Below the limit |
20240 of 40 weeks with a count above the limit
Show as table
| Week | Adult female lice per fish | Lice limit | Status |
|---|---|---|---|
| 1 | 0.13 | 0.5 | Below the limit |
| 2 | 0.28 | 0.5 | Below the limit |
| 3 | 0.20 | 0.5 | Below the limit |
| 4 | 0.40 | 0.5 | Near the limit |
| 5 | 0.07 | 0.5 | Below the limit |
| 6 | 0.00 | 0.5 | Below the limit |
| 7 | 0.10 | 0.5 | Below the limit |
| 8 | unknown | 0.5 | Reported without a count |
| 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 | unknown | 0.2 | Not reported |
| 19 | unknown | 0.2 | Not reported |
| 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 | 0.05 | 0.5 | Below the limit |
| 26 | 0.07 | 0.5 | Below the limit |
| 27 | 0.10 | 0.5 | Below the limit |
| 28 | 0.02 | 0.5 | Below the limit |
| 29 | 0.07 | 0.5 | Below the limit |
| 30 | 0.35 | 0.5 | Below the limit |
| 31 | 0.25 | 0.5 | Below the limit |
| 32 | 0.28 | 0.5 | Below the limit |
| 33 | 0.40 | 0.5 | Near the limit |
| 34 | 0.26 | 0.5 | Below the limit |
| 35 | 0.18 | 0.5 | Below the limit |
| 36 | 0.24 | 0.5 | Below the limit |
| 37 | 0.02 | 0.5 | Below the limit |
| 38 | 0.17 | 0.5 | Below the limit |
| 39 | 0.38 | 0.5 | Below the limit |
| 40 | 0.14 | 0.5 | Below the limit |
| 41 | 0.13 | 0.5 | Below the limit |
| 42 | 0.23 | 0.5 | Below the limit |
| 43 | 0.37 | 0.5 | Below the limit |
| 44 | 0.03 | 0.5 | Below the limit |
| 45 | 0.19 | 0.5 | Below the limit |
| 46 | 0.20 | 0.5 | Below the limit |
| 47 | 0.03 | 0.5 | Below the limit |
| 48 | 0.42 | 0.5 | Near the limit |
| 49 | 0.38 | 0.5 | Below the limit |
| 50 | 0.36 | 0.5 | Below the limit |
| 51 | 0.07 | 0.5 | Below the limit |
| 52 | 0.21 | 0.5 | Below the limit |
20230 of 13 weeks with a count above the limit (data from week 40)
Show as table
| Week | Adult female lice per fish | Lice limit | Status |
|---|---|---|---|
| 40 | 0.11 | 0.5 | Below the limit |
| 41 | 0.01 | 0.5 | Below the limit |
| 42 | 0.09 | 0.5 | Below the limit |
| 43 | 0.25 | 0.5 | Below the limit |
| 44 | 0.43 | 0.5 | Near the limit |
| 45 | 0.00 | 0.5 | Below the limit |
| 46 | 0.00 | 0.5 | Below the limit |
| 47 | 0.05 | 0.5 | Below the limit |
| 48 | 0.08 | 0.5 | Below the limit |
| 49 | 0.00 | 0.5 | Below the limit |
| 50 | 0.02 | 0.5 | Below the limit |
| 51 | 0.10 | 0.5 | Below the limit |
| 52 | 0.22 | 0.5 | Below the limit |
Treatments
Norwegian Food Safety Authority- Week 28, 2026Thermal delousingWhole site
- Week 51, 2025Thermal delousing1 pen
- Week 50, 2025Thermal delousing1 pen
- Week 48, 2025Thermal delousing1 pen
Show all 37
- Week 45, 2025Thermal delousing2 pens
- Week 44, 2025Thermal delousing1 pen
- Week 41, 2025Thermal delousingWhole site
- Week 35, 2025Thermal delousing2 pens
- Week 32, 2025Thermal delousing1 pen
- Week 26, 2025Thermal delousing1 pen
- Week 22, 2025Thermal delousing1 pen
- Week 21, 2025Thermal delousing1 pen
- Week 18, 2025Thermal delousing1 pen
- Week 16, 2025Thermal delousing1 pen
- Week 15, 2025Thermal delousing3 pens
- Week 13, 2025Thermal delousing1 pen
- Week 11, 2025Thermal delousing1 pen
- Week 8, 2025Thermal delousing2 pens
- Week 5, 2025Thermal delousing1 pen
- Week 3, 2025Thermal delousing3 pens
- Week 51, 2024Thermal delousing2 pens
- Week 50, 2024Medicinal feed2 pens · Emamectin benzoat
- Week 49, 2024Medicinal feed, Thermal delousing7 pens · Emamectin benzoat · Diflubenzuron
- Week 48, 2024Medicinal feed4 pens · Diflubenzuron
- Week 47, 2024Medicinal feed, Thermal delousing8 pens · Diflubenzuron
- Week 46, 2024Thermal delousing1 pen
- Week 45, 2024Thermal delousing1 pen
- Week 44, 2024Thermal delousing3 pens
- Week 43, 2024Thermal delousing2 pens
- Week 41, 2024Thermal delousing1 pen
- Week 40, 2024Thermal delousing1 pen
- Week 37, 2024Thermal delousing2 pens
- Week 33, 2024Thermal delousing1 pen
- Week 5, 2024Thermal delousing1 pen
- Week 49, 2023Thermal delousing2 pens
- Week 45, 2023Thermal delousing3 pens
- Week 40, 2023Thermal delousing3 pens
Disease
Norwegian Food Safety AuthorityNo cases in the Food Safety Authority's register of notifiable diseases (since 26 Nov 2024).
Escapes
Directorate of FisheriesNo escapes reported from this site since 2006.
Wellboat visits
5 visits in 2026Visits 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 |
|---|---|---|---|
| 31 Aug 2026 | Langsund | Røysa | 1 h 57 min |
| 03 Aug 2026 | Langsund | Rekvika | 1 h 53 min |
| 14 Jul 2026 | Langsund | Ospeneset | 2 h 8 min |
| 06 May 2026 | Langsund | Måren | 1 h 42 min |
| 11 Jan 2026 | Robris | Hågardsneset | 1 h 19 min |
| 28 Dec 2025 | Langsund | Rotøy | 1 h 0 min |
| 28 Dec 2025 | Langsund | Rotøy | 1 h 26 min |
| 30 Nov 2025 | Robris | Kastevika | 1 h 43 min |
| 26 Nov 2025 | Robris | Instefjord | 1 h 47 min |
| 26 Nov 2025 | Robris | Lyngholmane disease or zone there | 1 h 40 min |
| 15 Nov 2025 | Robris | Langevågen | 1 h 34 min |
| 26 Oct 2025 | Rohav | Bakjestranda | 2 h 17 min |
Show 29 older visits
| Arrival | Vessel | Previous farm (14 days) | Duration |
|---|---|---|---|
| 14 Oct 2025 | Rohav | Isane | 1 h 39 min |
| 16 Sep 2025 | Ro Fjord | Juvika B | 1 h 59 min |
| 13 Aug 2025 | Rostein | Kastevika | 1 h 8 min |
| 09 Aug 2025 | Rostein | Øklandsvågen | 3 h 12 min |
| 08 Aug 2025 | Rostein | Øklandsvågen | 1 h 26 min |
| 05 Aug 2025 | Robas | Instefjord | 1 h 30 min |
| 21 Jul 2025 | Rostein | Instefjord | 1 h 45 min |
| 20 Jul 2025 | Rostein | Instefjord | 1 h 0 min |
| 20 Jul 2025 | Rostein | Instefjord | 2 h 8 min |
| 20 Jul 2025 | Rostein | Skaganeset | 1 h 11 min |
| 06 Jul 2025 | Rostein | Hesteneset | 1 h 33 min |
| 06 Jul 2025 | Rostein | Hesteneset | 2 h 19 min |
| 29 Jun 2025 | Ro Server | Dyvika disease or zone there | 2 h 54 min |
| 23 Jun 2025 | Ro Server | Skigelstrand | 12 h 26 min |
| 27 Apr 2025 | Rostein | Skaganeset | 1 h 45 min |
| 09 Apr 2025 | Smola Vag | Oslandsurda | 9 h 25 min |
| 07 Apr 2025 | Smola Vag | no other farm | 9 h 10 min |
| 07 Dec 2024 | Ro Server | Aldeøyna | 2 h 18 min |
| 12 Nov 2024 | Rostein | Usholmsvika | 2 h 10 min |
| 10 Nov 2024 | Ro Server | Veiesund | 5 h 54 min |
| 09 Oct 2024 | Langsund | Hyseneset | 2 h 14 min |
| 07 Oct 2024 | Ro Server | Sørevik | 3 h 54 min |
| 06 Aug 2024 | Langsund | Hesteneset | 57 min |
| 08 May 2024 | Langsund | Rekvika | 54 min |
| 21 Feb 2024 | Robris | Langevågen | 2 h 28 min |
| 18 Feb 2024 | Rohav | Instefjord | 1 h 51 min |
| 01 Feb 2024 | Ro Server | Hesteneset | 4 h 1 min |
| 29 Jan 2024 | Rohav | Hella | 3 h 20 min |
| 14 Jan 2024 | Rohav | Skaganeset | 1 h 24 min |
Who has reported
The companies that have submitted lice counts for this site, with the first and last week.
| Company | From | To |
|---|---|---|
| Osland Seafood AS | Week 40, 2023 | Week 39, 2026 |
| Osland Genetics AS | Week 23, 2024 | Week 3, 2026 |
Licences
Site MAB: 4,680 tonnes| Licence | Type | Capacity | Holder |
|---|---|---|---|
| H AV 0093 | Kommersiell / matfiskSalmon, Rainbow trout, Trout | 710 t | Troland Lakseoppdrett AS |
| R V 0023 | Kommersiell / stamfiskRainbow trout | 780 t | Osland Genetics AS |
| R V 0027 | Kommersiell / stamfiskRainbow trout | 780 t | Osland Genetics AS |
| SF A 0010 | Kommersiell / matfiskSalmon, Rainbow trout, Trout | 648 t | Steinvik Fiskefarm AS |
| SF A 0011 | Kommersiell / matfiskSalmon, Rainbow trout, Trout | 648 t | Steinvik Fiskefarm AS |
| SF HØ 0001 | Kommersiell / matfiskSalmon, Rainbow trout, Trout | 1,350 t | Osland Seafood AS |
| SF HØ 0009 | Kommersiell / matfiskSalmon, Rainbow trout, Trout | 648 t | Osland Seafood AS |
| SF HØ 0018 | Kommersiell / matfiskSalmon, Rainbow trout, Trout | 648 t | Osland Seafood AS |
| SF HØ 0020 | Kommersiell / stamfiskRainbow trout | 780 t | Osland Genetics AS |
| SF HØ 0024 | Kommersiell / stamfiskRainbow trout | 780 t | Osland Genetics AS |
| SF HØ 0913 | Kommersiell / alger til fôr/konsumSukkertare (oppdrett) | unknown | Osland Seafood AS |
| SF HØ 0914 | Kommersiell / alger til fôr/konsumButare | unknown | Osland Seafood AS |
| SF HØ 0915 | Kommersiell / alger til fôr/konsumFingertare | unknown | Osland Seafood AS |