General Information

Event name: NO-09-016
Country: NORWAY
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: 228-84g/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, Mona Ring

Location & Date

[View larger map]
Location: Latitude: , Longitude:
General location information: Norwegian Sea, South,
HAB Area code(s): NO-06
Additional location information: Rundhaugen(W24-51), Hattholmen(W30-33), Hagasandviken(35-40)
Bloom event dates (yyyy/mm/dd): Start: 2009-06-08, End: 2009-12-21
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Dinophysis acuminata (2000 cells/L)
Hattholmen, W 30
Co-Ocurring Species/Genus: Dinophysis acuta (200 cells/L)
rundhaugen, W38
Chlorophyll concentration, if known: µg/l
Additional bloom information: Harvesting was locally banned. The public was warned against picking toxic mussels.
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 Okadaic Acid OA 228 Bioassay-Mouse
Kit used: Type of kit used:
Additional information: Mouse bioassay. Mortality: Rundhaugen (W30/34/35/42/46/50): 3/3,1/3, 2/3, 3/3, 2/3, 3/3.
Economic losses:
Management decision: Harvesting was locally banned. The public was warned against picking toxic mussels.
Additional harmful effect information:
Created at 10:36 on 13 Feb 2015