Skip to content
The Salmon Ledger
NOEN
Disease case · Infectious salmon anaemia (ISA)

ISA at Valøyan

Site 31557 · Frøya municipality · Trøndelag · Mowi Seawater Norway AS. Production area: Nordmøre og Sør-Trøndelag.

  1. Suspected18 Mar 2026Food Safety Authority
  2. Confirmed26 Mar 2026Food Safety Authority
  3. Closednot yetRequires the farm to be emptied and fallowed
Follow the farmAbout the wellboat analysis
  • 197Days since suspicionAs of 01 Oct 2026
  • 1Wellboat visits up to 28 days before, from 1 vesselCoastal Administration (AIS) · 01 Oct 2026
  • 0Of them from a boat recently at a farm with ISA/PDWithin 14 days before the visit · The Salmon Ledger
  • 0Other farms with active ISA within 10 km at suspicionNorwegian Food Safety Authority · 01 Oct 2026

Wellboat visits before suspicion

The 28 days before the case started (suspected 18 Mar 2026). Each mark is one visit. A triangle means the boat had, in the previous 14 days, been at another farm with active ISA or PD, or in a protection zone. Visits after suspicion are not included.

VisitCame from a farm with ISA/PDPrevious farm unknown (no recorded stop in 14 days)

Sources: Coastal Administration (AIS), Food Safety Authority (cases, and zones via BarentsWatch) · visits derived by The Salmon Ledger · updated 01 Oct 2026

Visits in the 28 days before suspicion

DateVesselDurationCame from (last stop)Status there
17 Mar 2026Froy Saga4 h 32 minHendnesetNo known ISA/PD