General Information

Event name: NO-14-001
Country: NORWAY
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: 422-1279 µg STX/kg)
Associated syndrome: PSP
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: Yes
Individuals to contact: Kleiven , Gustad|

Location & Date

[View larger map]
Location: Latitude: , Longitude:
General location information: Skagerak,
HAB Area code(s): NO-11
Additional location information: Hvaler (D. acuminata), Tųnsberg (PSP 422 µg STX/kg week 17), Kragerų (PSP in the area), Risųr (PSP 1102 µg STX/kg week 15), Arendal (PSP 1279 µg STX/kg week 14), Kristiansand (PSP in the area)
Bloom event dates (yyyy/mm/dd): Event Date:2014-03-31
Start: 2014-03-31, End: 2014-05-05
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Dinophysis acuminata (2120 cells/L)
week 15, Hvaler
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
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 Saxitoxins 1279µg STX/kg Bioassay-Other
Kit used: Type of kit used:
Additional information: Blue mussel samples analysed
Economic losses: Mussel plants were banned from harvesting.
Management decision: Harvesting was stopped and the public was warned.
Additional harmful effect information:
Created at 12:43 on 26 Aug 2014
Updated at 09:44 on 13 Jan 2015