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

ISA at Geitryggen

Site 31357 · Nærøysund municipality · Trøndelag · Mowi Seawater Norway AS. Production area: Nord-Trøndelag med Bindal.

  1. Suspected20 Feb 2026Food Safety Authority
  2. Confirmed04 Mar 2026Food Safety Authority
  3. Closednot yetRequires the farm to be emptied and fallowed
Follow the farmAbout the wellboat analysis
  • 223Days since suspicionAs of 01 Oct 2026
  • 2Wellboat visits up to 28 days before, from 1 vesselCoastal Administration (AIS) · 01 Oct 2026
  • 0Of them from a boat recently at a farm with an ISA/PD outbreakPlus 0 from a protection zone · within 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 20 Feb 2026). Each mark is one visit. A filled triangle means the boat had, in the previous 14 days, been at another farm with an active ISA or PD outbreak. An open triangle means it had only been at farms in a protection zone, with no outbreak there. Visits after suspicion are not included.

VisitCame from a farm with an ISA/PD outbreakCame from a farm in a protection zonePrevious 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
28 Jan 2026Ronja Heroy1 h 27 minLangskjæranNo known ISA/PD
26 Jan 2026Ronja Heroy36 h 25 minLangskjæranNo known ISA/PD