General Information

Event name: NO-02-016
Country: NORWAY
Nature of the harmful event:
High Phyto concentration , Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: PSP:376 g STX/kg, YTX: 1021 g/kg)
Associated syndrome: OTHER , 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:
Individuals to contact: Kleiven, Mona Ring

Location & Date

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Location: Latitude: , Longitude:
General location information: North sea, north, Bergen,Nordhordaland,Sogndal,Nordfjord
HAB Area code(s): NO-07
Additional location information:
Bloom event dates (yyyy/mm/dd): Start: 2002-03-18, End: 2002-12-02
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Dinophysis acuta (2720 cells/L)
Sogndal W 34
Co-Ocurring Species/Genus: Dinophysis acuminata (1600 cells/L)
Sogndal W25
Alexandrium spp. (2200 cells/L)
Sogndal W 15
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
Additional Environmental information: Sampling aprox 0-3 meters

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Alexandrium spp. Saxitoxins STX 376 g STX/kg Bioassay-Mouse
Yessotoxins YTX 1021 g/kg Bioassay-Mouse
Kit used: No Type of kit used:
Additional information:
Economic losses: Mussel plants were banned from harvesting.
Management decision: Harvesting was stopped and the public was warned.
Additional harmful effect information: No intoxications wer reported, the public was warned
Created at 11:03 on 13 Apr 2016
Updated at 11:04 on 13 Apr 2016