General Information

Event name: NO-09-010
Country: NORWAY
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: DSP: 6927-20g/kg, PSP: 2532-384g STX/kg, YTX: 1445gkg)
Associated syndrome: DSP , OTHER , PSP
Unexplained toxicity: Yes (DSP and PSP W16 at Kaland and Rondestveit, PSP and YTX W 22 at Vemmelvik)
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, Mona Ring

Location & Date

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Location: Latitude: , Longitude:
General location information: north sea, north,
HAB Area code(s): NO-08
Additional location information: Kaland(W13-20), Rondstveit (W4-50), Stigevika(W12-27), Hellesgrova (W16-28), Stivika(W14-17);Gjelet(W14-22),Steinhalsen(W12-22), Engelstadvika(W9-27),Smineset(W13-22),Vemmelvik(19-28)
Bloom event dates (yyyy/mm/dd): End: 2009-01-19
Quarantine levels dates (yyyy/mm/dd): First detection: 2009-12-27,
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Alexandrium spp. (520 cells/L)
Rondstveit, W12
Co-Ocurring Species/Genus: Dinophysis acuta (360 cells/L)
Rondstveit, W30
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
mytilus edulis Saxitoxins STX 2532g/kg Bioassay-Other
Mytilus edulis Okadaic Acid OA 6927g/kg Bioassay-Mouse
mytilus edulis Yessotoxins YTX 1445g/kg Bioassay-Mouse
Kit used: Type of kit used:
Additional information: Mouse bioassay. Mortality. Gjelet,W22:2/3, Kaland, W 16: 2/3.
Economic losses:
Management decision: Harvesting was locally banned. The public was warned against picking toxic mussels.
Additional harmful effect information:
Created at 09:41 on 13 Feb 2015
Updated at 09:42 on 13 Feb 2015