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Grasholmen

Fish health and reported environmental data for site 11690.

Programmatic access to site data (JSON)

Source: Akvakultur og fiskehelse. Retrieved 2026-09-18T21:31:23Z.

Weekly status

aar:
2026
uke:
37
lokalitet:

Open the place page for this point

lokalitetsnummer:
11690
navn:
Grasholmen
kommune:
Alver
lat:
60.595767
lon:
5.159717
laksefisk_tillatelse:
not reported by source
sykdommer:

No results.

luserapport:
hasReported:
yes
isFallow:
no
adultFemaleLice:
average:
0.26
averageOfPreviousWeek:
0.363
trend:
Decreasing
mobileLice:
average:
0.692
averageOfPreviousWeek:
0.913
trend:
Decreasing
stationaryLice:
average:
0.125
averageOfPreviousWeek:
0.15
trend:
Decreasing
totalLice:
average:
1.0769999
averageOfPreviousWeek:
1.426
trend:
Decreasing
seaTemperature:
13.8
behandlinger:
combinationTreatments:

No results.

medicinalTreatments:

No results.

nonMedicinalTreatments:

No results.

bathTreatments:

No results.

cleanerFishTreatment:
not reported by source
inFeedTreatments:

No results.

mechanicalRemovalTreatment:
not reported by source
daysSinceLastChitinSynthesisInhibitorTreatment:
not reported by source
raadata:
locality:
no:
11690
name:
Grasholmen
isOnLand:
no
geometry:
type:
Point
coordinates:

2 results

  1. 5.159717
  2. 60.595767
municipality:
no:
4631
name:
Alver
productionArea:
id:
4
name:
Nordhordaland til Stadt
color:
not reported by source
aquaCultureRegister:
placement:
SJØ
capacity:
3120.0
unit:
TN
licenses:

5 results

  1. licenseNo:
    H OR 0004
    licensee:
    LERØY VEST SJØ AS
    grantDate:
    1973-08-14T00:00:00
    expirationDate:
    not reported by source
    localities:

    4 results

    1. localityNo:
      11649
      name:
      Stolane
      municipality:
      Alver
      isReportingLocality:
      yes
    2. localityNo:
      11687
      name:
      Ramsvik
      municipality:
      Alver
      isReportingLocality:
      yes
    3. localityNo:
      11690
      name:
      Grasholmen
      municipality:
      Alver
      isReportingLocality:
      yes
    4. localityNo:
      13563
      name:
      Angelskår
      municipality:
      Osterøy
      isReportingLocality:
      yes
    capacity:
    648.0
    purpose:
    Kommersiell
    productionType:
    Matfisk
    isGreen:
    no
    species:

    3 results

    1. Laks
    2. Regnbueørret
    3. Ørret
    speciesCategory:
    Laks, regnbueørret og ørret
    unit:
    TN
  2. licenseNo:
    H OR 0026
    licensee:
    LERØY VEST SJØ AS
    grantDate:
    1987-02-19T00:00:00
    expirationDate:
    not reported by source
    localities:

    4 results

    1. localityNo:
      11649
      name:
      Stolane
      municipality:
      Alver
      isReportingLocality:
      yes
    2. localityNo:
      11687
      name:
      Ramsvik
      municipality:
      Alver
      isReportingLocality:
      yes
    3. localityNo:
      11690
      name:
      Grasholmen
      municipality:
      Alver
      isReportingLocality:
      yes
    4. localityNo:
      13563
      name:
      Angelskår
      municipality:
      Osterøy
      isReportingLocality:
      yes
    capacity:
    648.0
    purpose:
    Kommersiell
    productionType:
    Matfisk
    isGreen:
    no
    species:

    3 results

    1. Laks
    2. Regnbueørret
    3. Ørret
    speciesCategory:
    Laks, regnbueørret og ørret
    unit:
    TN
  3. licenseNo:
    H R 0006
    licensee:
    LERØY VEST SJØ AS
    grantDate:
    1973-08-03T00:00:00
    expirationDate:
    not reported by source
    localities:

    5 results

    1. localityNo:
      11649
      name:
      Stolane
      municipality:
      Alver
      isReportingLocality:
      yes
    2. localityNo:
      11687
      name:
      Ramsvik
      municipality:
      Alver
      isReportingLocality:
      yes
    3. localityNo:
      11690
      name:
      Grasholmen
      municipality:
      Alver
      isReportingLocality:
      yes
    4. localityNo:
      13209
      name:
      Bognøy
      municipality:
      Alver
      isReportingLocality:
      yes
    5. localityNo:
      28416
      name:
      Sandvik
      municipality:
      Vaksdal
      isReportingLocality:
      yes
    capacity:
    1080.0
    purpose:
    Kommersiell
    productionType:
    Matfisk
    isGreen:
    no
    species:

    3 results

    1. Laks
    2. Regnbueørret
    3. Ørret
    speciesCategory:
    Laks, regnbueørret og ørret
    unit:
    TN
  4. licenseNo:
    H R 0009
    licensee:
    LERØY VEST SJØ AS
    grantDate:
    1986-06-03T00:00:00
    expirationDate:
    not reported by source
    localities:

    4 results

    1. localityNo:
      11649
      name:
      Stolane
      municipality:
      Alver
      isReportingLocality:
      yes
    2. localityNo:
      11687
      name:
      Ramsvik
      municipality:
      Alver
      isReportingLocality:
      yes
    3. localityNo:
      11690
      name:
      Grasholmen
      municipality:
      Alver
      isReportingLocality:
      yes
    4. localityNo:
      13209
      name:
      Bognøy
      municipality:
      Alver
      isReportingLocality:
      yes
    capacity:
    648.0
    purpose:
    Kommersiell
    productionType:
    Matfisk
    isGreen:
    no
    species:

    3 results

    1. Laks
    2. Regnbueørret
    3. Ørret
    speciesCategory:
    Laks, regnbueørret og ørret
    unit:
    TN
  5. licenseNo:
    H R 0016
    licensee:
    LERØY VEST SJØ AS
    grantDate:
    2004-02-11T00:00:00
    expirationDate:
    not reported by source
    localities:

    3 results

    1. localityNo:
      11649
      name:
      Stolane
      municipality:
      Alver
      isReportingLocality:
      yes
    2. localityNo:
      11690
      name:
      Grasholmen
      municipality:
      Alver
      isReportingLocality:
      yes
    3. localityNo:
      28416
      name:
      Sandvik
      municipality:
      Vaksdal
      isReportingLocality:
      yes
    capacity:
    648.0
    purpose:
    Kommersiell
    productionType:
    Matfisk
    isGreen:
    no
    species:

    3 results

    1. Laks
    2. Regnbueørret
    3. Ørret
    speciesCategory:
    Laks, regnbueørret og ørret
    unit:
    TN
hasGreenLicense:
no
hasSalmonoidLicense:
yes
productionTypes:

1 results

  1. Matfisk
purposes:

1 results

  1. Kommersiell
isSlaughterHoldingCage:
no
organizations:

1 results

  1. name:
    LERØY VEST SJØ AS
    organizationNo:
    930185698
    address:
    ALFABYGGET 1
    postalCode:
    5392
    city:
    STOREBØ
    localities:

    30 results

    1. localityNo:
      13563
      name:
      Angelskår
      municipality:
      Osterøy
      isReportingLocality:
      no
    2. localityNo:
      13209
      name:
      Bognøy
      municipality:
      Alver
      isReportingLocality:
      no
    3. localityNo:
      14799
      name:
      Djupestallen
      municipality:
      Tysnes
      isReportingLocality:
      no
    4. localityNo:
      26595
      name:
      Djupevika
      municipality:
      Tysnes
      isReportingLocality:
      no
    5. localityNo:
      25835
      name:
      Flatøyflu
      municipality:
      Austevoll
      isReportingLocality:
      no
    6. localityNo:
      11690
      name:
      Grasholmen
      municipality:
      Alver
      isReportingLocality:
      no
    7. localityNo:
      24735
      name:
      Gulholmen
      municipality:
      Bjørnafjorden
      isReportingLocality:
      no
    8. localityNo:
      18015
      name:
      Hestabyneset
      municipality:
      Tysnes
      isReportingLocality:
      no
    9. localityNo:
      12035
      name:
      Hondskår
      municipality:
      Kvinnherad
      isReportingLocality:
      no
    10. localityNo:
      32757
      name:
      Horgefjorden
      municipality:
      Austevoll
      isReportingLocality:
      no
    11. localityNo:
      28976
      name:
      Kelvesteinen
      municipality:
      Øygarden
      isReportingLocality:
      no
    12. localityNo:
      12294
      name:
      Kjerstad
      municipality:
      Haram
      isReportingLocality:
      no
    13. localityNo:
      24975
      name:
      Kvernavika
      municipality:
      Tysnes
      isReportingLocality:
      no
    14. localityNo:
      20595
      name:
      Kyrholmen S
      municipality:
      Austevoll
      isReportingLocality:
      no
    15. localityNo:
      11767
      name:
      Langøy
      municipality:
      Solund
      isReportingLocality:
      no
    16. localityNo:
      13541
      name:
      Midtflua
      municipality:
      Tysnes
      isReportingLocality:
      no
    17. localityNo:
      11611
      name:
      Naveide
      municipality:
      Austevoll
      isReportingLocality:
      no
    18. localityNo:
      11687
      name:
      Ramsvik
      municipality:
      Alver
      isReportingLocality:
      no
    19. localityNo:
      11651
      name:
      Ramsøy S
      municipality:
      Askøy
      isReportingLocality:
      no
    20. localityNo:
      29276
      name:
      Rongøy
      municipality:
      Øygarden
      isReportingLocality:
      no
    21. localityNo:
      32137
      name:
      Sagen 2
      municipality:
      Samnanger
      isReportingLocality:
      no
    22. localityNo:
      31677
      name:
      Sandholmane
      municipality:
      Aukra
      isReportingLocality:
      no
    23. localityNo:
      28416
      name:
      Sandvik
      municipality:
      Vaksdal
      isReportingLocality:
      no
    24. localityNo:
      11758
      name:
      Sauøy
      municipality:
      Øygarden
      isReportingLocality:
      no
    25. localityNo:
      32877
      name:
      Skorpo
      municipality:
      Bjørnafjorden
      isReportingLocality:
      no
    26. localityNo:
      11649
      name:
      Stolane
      municipality:
      Alver
      isReportingLocality:
      no
    27. localityNo:
      20776
      name:
      Storoksen
      municipality:
      Askøy
      isReportingLocality:
      no
    28. localityNo:
      10054
      name:
      Tobbeholmane
      municipality:
      Austevoll
      isReportingLocality:
      no
    29. localityNo:
      29336
      name:
      Trælsøyosen
      municipality:
      Austevoll
      isReportingLocality:
      no
    30. localityNo:
      13562
      name:
      Uføro
      municipality:
      Stord
      isReportingLocality:
      no
species:

3 results

  1. Laks
  2. Regnbueørret
  3. Ørret
controlAreas:

No results.

exportRestrictionAreas:

No results.

pdZoneId:
pd
diseases:

No results.

farmedFishEscapes:

No results.

liceReport:
hasReported:
yes
isFallow:
no
adultFemaleLice:
average:
0.26
averageOfPreviousWeek:
0.363
trend:
Decreasing
mobileLice:
average:
0.692
averageOfPreviousWeek:
0.913
trend:
Decreasing
stationaryLice:
average:
0.125
averageOfPreviousWeek:
0.15
trend:
Decreasing
totalLice:
average:
1.0769999
averageOfPreviousWeek:
1.426
trend:
Decreasing
seaTemperature:
13.8
liceTreatments:
combinationTreatments:

No results.

medicinalTreatments:

No results.

nonMedicinalTreatments:

No results.

bathTreatments:

No results.

cleanerFishTreatment:
not reported by source
inFeedTreatments:

No results.

mechanicalRemovalTreatment:
not reported by source
daysSinceLastChitinSynthesisInhibitorTreatment:
not reported by source

Diseasesstatus

4 results

  1. version:
    2
    name:
    PANKREASSYKDOM
    subType:
    SAV3
    status:
    DIAGNOSED
    closureType:
    not reported by source
    suspicionDate:
    2020-08-07T02:00:00+02:00
    diagnosisDate:
    2020-08-28T02:00:00+02:00
    emptiedDate:
    2021-01-03T01:00:00+01:00
    closureDate:
    2021-03-15T01:00:00+01:00
  2. version:
    1
    name:
    PANKREASSYKDOM
    subType:
    not reported by source
    status:
    SUSPECTED
    closureType:
    not reported by source
    suspicionDate:
    2015-02-06T00:00:00+01:00
    diagnosisDate:
    not reported by source
    emptiedDate:
    not reported by source
    closureDate:
    2015-07-30T00:00:00+02:00
  3. version:
    1
    name:
    PANKREASSYKDOM
    subType:
    not reported by source
    status:
    DIAGNOSED
    closureType:
    not reported by source
    suspicionDate:
    not reported by source
    diagnosisDate:
    2013-07-05T00:00:00+02:00
    emptiedDate:
    not reported by source
    closureDate:
    2014-05-23T00:00:00+02:00
  4. version:
    1
    name:
    PANKREASSYKDOM
    subType:
    not reported by source
    status:
    DIAGNOSED
    closureType:
    not reported by source
    suspicionDate:
    not reported by source
    diagnosisDate:
    2020-08-28T00:00:00+02:00
    emptiedDate:
    not reported by source
    closureDate:
    not reported by source

Salmon lice

localityNo:
11690
year:
2026
type:
avgAdultFemaleLice
data:

35 results

  1. week:
    1
    value:
    0.0359928160905838
  2. week:
    2
    value:
    0.08783358335494995
  3. week:
    3
    value:
    0.05434928461909294
  4. week:
    4
    value:
    0.11490218341350555
  5. week:
    5
    value:
    0.08630014955997467
  6. week:
    6
    value:
    0.14117424190044403
  7. week:
    7
    value:
    0.1662662923336029
  8. week:
    8
    value:
    0.16019874811172485
  9. week:
    9
    value:
    0.31452417373657227
  10. week:
    10
    value:
    0.18012265861034393
  11. week:
    11
    value:
    0.2758059501647949
  12. week:
    12
    value:
    0.15000000596046448
  13. week:
    13
    value:
    0.10000000149011612
  14. week:
    14
    value:
    0.03154719993472099
  15. week:
    15
    value:
    0.05371115356683731
  16. week:
    16
    value:
    0.053803950548172
  17. week:
    17
    value:
    0.03906729444861412
  18. week:
    18
    value:
    0.10409698635339737
  19. week:
    19
    value:
    0.04247461259365082
  20. week:
    20
    value:
    0.048238299787044525
  21. week:
    21
    value:
    0.10499999672174454
  22. week:
    22
    value:
    0.11500000208616257
  23. week:
    23
    value:
    0.3490000069141388
  24. week:
    26
    value:
    0.07900000363588333
  25. week:
    27
    value:
    0.07500000298023224
  26. week:
    28
    value:
    0.10000000149011612
  27. week:
    29
    value:
    0.12800000607967377
  28. week:
    30
    value:
    0.11299999803304672
  29. week:
    31
    value:
    0.49000000953674316
  30. week:
    32
    value:
    0.3630000054836273
  31. week:
    33
    value:
    0.3930000066757202
  32. week:
    34
    value:
    0.12800000607967377
  33. week:
    35
    value:
    0.15000000596046448
  34. week:
    36
    value:
    0.3630000054836273
  35. week:
    37
    value:
    0.25999999046325684

Sea temperature

localityNo:
11690
year:
2026
minMaxTemperatureIsSet:
yes
minSeaTemperature:
5.571429
maxSeaTemperature:
13.8
data:

53 results

  1. week:
    1
    seaTemperature:
    9.421429
    hasReported:
    yes
  2. week:
    2
    seaTemperature:
    6.6285715
    hasReported:
    yes
  3. week:
    3
    seaTemperature:
    8.028571
    hasReported:
    yes
  4. week:
    4
    seaTemperature:
    6.7714286
    hasReported:
    yes
  5. week:
    5
    seaTemperature:
    6.3428574
    hasReported:
    yes
  6. week:
    6
    seaTemperature:
    5.571429
    hasReported:
    yes
  7. week:
    7
    seaTemperature:
    5.65
    hasReported:
    yes
  8. week:
    8
    seaTemperature:
    5.8428574
    hasReported:
    yes
  9. week:
    9
    seaTemperature:
    5.885714
    hasReported:
    yes
  10. week:
    10
    seaTemperature:
    6.007143
    hasReported:
    yes
  11. week:
    11
    seaTemperature:
    6.0142856
    hasReported:
    yes
  12. week:
    12
    seaTemperature:
    6.303125
    hasReported:
    yes
  13. week:
    13
    seaTemperature:
    5.928571
    hasReported:
    yes
  14. week:
    14
    seaTemperature:
    5.95
    hasReported:
    yes
  15. week:
    15
    seaTemperature:
    6.042857
    hasReported:
    yes
  16. week:
    16
    seaTemperature:
    7.3714285
    hasReported:
    yes
  17. week:
    17
    seaTemperature:
    8.021428
    hasReported:
    yes
  18. week:
    18
    seaTemperature:
    8.792857
    hasReported:
    yes
  19. week:
    19
    seaTemperature:
    9.272581
    hasReported:
    yes
  20. week:
    20
    seaTemperature:
    9.335714
    hasReported:
    yes
  21. week:
    21
    seaTemperature:
    9.907
    hasReported:
    yes
  22. week:
    22
    seaTemperature:
    11.121
    hasReported:
    yes
  23. week:
    23
    seaTemperature:
    10.979
    hasReported:
    yes
  24. week:
    24
    seaTemperature:
    not reported by source
    hasReported:
    no
  25. week:
    25
    seaTemperature:
    not reported by source
    hasReported:
    no
  26. week:
    26
    seaTemperature:
    12.436
    hasReported:
    yes
  27. week:
    27
    seaTemperature:
    13.121
    hasReported:
    yes
  28. week:
    28
    seaTemperature:
    12.821
    hasReported:
    yes
  29. week:
    29
    seaTemperature:
    13.0
    hasReported:
    yes
  30. week:
    30
    seaTemperature:
    13.136
    hasReported:
    yes
  31. week:
    31
    seaTemperature:
    13.193
    hasReported:
    yes
  32. week:
    32
    seaTemperature:
    12.338
    hasReported:
    yes
  33. week:
    33
    seaTemperature:
    13.021
    hasReported:
    yes
  34. week:
    34
    seaTemperature:
    12.657
    hasReported:
    yes
  35. week:
    35
    seaTemperature:
    12.633
    hasReported:
    yes
  36. week:
    36
    seaTemperature:
    13.279
    hasReported:
    yes
  37. week:
    37
    seaTemperature:
    13.8
    hasReported:
    yes
  38. week:
    38
    seaTemperature:
    not reported by source
    hasReported:
    no
  39. week:
    39
    seaTemperature:
    not reported by source
    hasReported:
    no
  40. week:
    40
    seaTemperature:
    not reported by source
    hasReported:
    no
  41. week:
    41
    seaTemperature:
    not reported by source
    hasReported:
    no
  42. week:
    42
    seaTemperature:
    not reported by source
    hasReported:
    no
  43. week:
    43
    seaTemperature:
    not reported by source
    hasReported:
    no
  44. week:
    44
    seaTemperature:
    not reported by source
    hasReported:
    no
  45. week:
    45
    seaTemperature:
    not reported by source
    hasReported:
    no
  46. week:
    46
    seaTemperature:
    not reported by source
    hasReported:
    no
  47. week:
    47
    seaTemperature:
    not reported by source
    hasReported:
    no
  48. week:
    48
    seaTemperature:
    not reported by source
    hasReported:
    no
  49. week:
    49
    seaTemperature:
    not reported by source
    hasReported:
    no
  50. week:
    50
    seaTemperature:
    not reported by source
    hasReported:
    no
  51. week:
    51
    seaTemperature:
    not reported by source
    hasReported:
    no
  52. week:
    52
    seaTemperature:
    not reported by source
    hasReported:
    no
  53. week:
    53
    seaTemperature:
    not reported by source
    hasReported:
    no

Continue exploring

How an AI agent should use this page

Ground rule: Navigate with HTML GET links to keep explanations and relationships. Use the page's JSON alternative only when concrete values must be extracted, compared or computed.

How to use the aquaculture page

Distinguish between locality metadata, weekly status and historical series. State week/year for lice, disease and temperature.

AI agent? Read the complete navigation and programming guide.