General Information

Event name: NO-09-015
Country: NORWAY
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: 8648-469g STX/kg)
Associated syndrome: PSP
Unexplained toxicity: No
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

Location & Date

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Location: Latitude: , Longitude:
General location information: Norwegian Sea, South,
HAB Area code(s): NO-06
Additional location information: Hegreholmen(W13-30), Cap Clara(W14-23), Kvernan(W16-32), Hattholmen(W17-25), Kvitneset(W21-25)
Bloom event dates (yyyy/mm/dd): Start: 2009-03-23, End: 2009-08-03
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: No
Causative Species/Genus: Alexandrium tamarense (680 cells/L)
Kvernan, W29
Alexandrium spp. (720 cells/L)
Hegreholmen, W22
Co-Ocurring Species/Genus: Dinophysis acuminata (1560 cells/L)
Kvernan, W32
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 Sampling aprox 0-3 meters
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
A. tamarense Saxitoxins STX 8648g STX/kg Bioassay-Mouse
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision: Harvesting was locally banned. The public was warned against picking toxic mussels.
Additional harmful effect information:
Created at 10:28 on 13 Feb 2015