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

ISA at Seiskjæra

Site 10398 · Åfjord municipality · Trøndelag · Salmar Oppdrett AS. Production area: Nordmøre og Sør-Trøndelag.

  1. Suspected28 Apr 2025Food Safety Authority
  2. Confirmed30 May 2025Food Safety Authority
  3. Closed23 Aug 2025Food Safety Authority
Follow the farmAbout the wellboat analysis
  • 117Days from suspicion to closureFood Safety Authority
  • 6Wellboat visits up to 28 days before, from 2 vesselsCoastal Administration (AIS) · 01 Oct 2026
  • 4Of 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 28 Apr 2025). 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
15 Apr 2025Aasvaerfjord1 h 23 minNordskagNo known ISA/PD
15 Apr 2025Aasvaerfjord3 h 03 minNordskagNo known ISA/PD
02 Apr 2025Ronja Princess14 h 12 minAursøysva
last stop: Nordskag
ISA/PD or protection zone
02 Apr 2025Ronja Princess13 h 01 minAursøysva
last stop: Nordskag
ISA/PD or protection zone
01 Apr 2025Ronja Princess9 h 56 minAursøysva
last stop: Nordskag
ISA/PD or protection zone
01 Apr 2025Ronja Princess55 minAursøysva
last stop: Nordskag
ISA/PD or protection zone