General Information

Event name: NO-96-004
Country: NORWAY
Nature of the harmful event:
Event directly affected:
Toxicity detected: Yes
Associated syndrome: PSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: No
Event occurred before in this location: No
Individuals to contact: TANGEN, Karl , VARRAN, Gesche Torp

Location & Date

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Location: Latitude: , Longitude:
General location information: ,
HAB Area code(s): NO-06
Additional location information: Mid-Norway (Trondelag)
Bloom event dates (yyyy/mm/dd): Start: 1996-09-01, End: 1996-09-30
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: September


Causative organism known: Yes
Causative Species/Genus: Alexandrium excavatum ( cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography:

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
Stratified water: No Oxygen content (nL/L): Wind velocity:
Temperature (°C): Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: Current Velocity: 0
Nutrient information:
Temperature Range During Event: Max: °C, Min: °C
Salinity Range During Event:
Bloom location in the water column:
In situ
Growth Comments Mainly due to in situ growth?
Additional Environmental information: No information

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
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: Toxins recorded above the action level according to mouse bioassay. Highest recording was 17039 ME. Four people were intoxicated.
Updated at 04:22 on 2 Dec 2019