General Information

Event name: NO-10-002
Country: NORWAY
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: Mouse bioassay posetive on DSP, YTX: 1551µg/kg)
Associated syndrome: DSP , OTHER
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

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Location: Latitude: , Longitude:
General location information: Skagerrak,
HAB Area code(s): NO-12
Additional location information: Moss(W24-28), Asker (21-24), Larvik(23-25), Risør (24-25), Arendal (17-29), Søgne (21-30)
Bloom event dates (yyyy/mm/dd): Start: 2010-04-26, End: 2010-07-26
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Dinophysis acuta (240 cells/L)
Risør, W24
Co-Ocurring Species/Genus: Dinophysis norvegica (12400 cells/L)
Moss, W24
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: Whole 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 Yessotoxins YTX 1551µg/kg Bioassay-Mouse
mytilus edulis Okadaic Acid OA posetive Bioassay-Mouse
Kit used: Type of kit used:
Additional information: Mouse bioassay. Mortality: Larvik,W23: 3/3 mouse, W24: 2/3 mouse. Arendal, W17: 2/3 mouse, W23: 3/3 mouse, W25: 2-3 mouse.
Economic losses:
Management decision: Harvesting was locally banned. The public was warned against picking toxic mussels.
Additional harmful effect information:
Created at 08:22 on 17 Feb 2015