General Information

Event name: NO-13-005
Country: NORWAY
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: 173 g/kg)
Associated syndrome: DSP
Unexplained toxicity:
Species implicated in toxin transmission (transvector): Mytilus edulis
Report the outcome of a monitoring programme: Yes (Norwegian Food Safety Autority monitoring program)
Event occurred before in this location:
Individuals to contact: Kleiven , Gustad|

Location & Date

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Location: Latitude: , Longitude:
General location information: Norwegian Sea, south,
HAB Area code(s): NO-06
Additional location information: Rundhaugen, Indery (173 g/kg) week 42
Bloom event dates (yyyy/mm/dd): Event Date:2013-10-14
Start: 2013-10-14, End: 2013-10-21
Quarantine levels dates (yyyy/mm/dd): First detection: 2013-10-14,
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Dinophysis acuta (400 cells/L)
Week 38, Sivertsvik
Dinophysis acuta ( cells/L)
Dinophysis acuta (173 cells/L)
Week 42, Rundhaugen
Dinophysis acuta (280 cells/L)
Week 38, Rundhaugen
Dinophysis acuta (200 cells/L)
Week 36, Rundhaugen
Dinophysis acuta (440 cells/L)
Week 37, Rundhaugen
Dinophysis acuta (250 cells/L)
Week 36, Levangersundet
Dinophysis acuta ( cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: Sivertsvik closed week 38-40, Rundhaugen closed week 36-45, Levangersundet closed week 36-40
Event-related bibliography:

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
Stratified water: Oxygen content (nL/L): Wind velocity:
Temperature (°C): Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: Current Velocity:
Nutrient information:
Temperature Range During Event: Max: °C, Min: °C
Salinity Range During Event:
Bloom location in the water column:
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Mytilus edulis Okadaic Acid OA 173 g/kg Bioassay-Other
Kit used: Type of kit used:
Additional information:
Economic losses: Mussel plants were banned from harvesting.
Management decision: Harvesting was stopped and the public was warned
Additional harmful effect information:
Created at 02:06 on 27 Aug 2014
Updated at 09:54 on 13 Jan 2015