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General Information

Event name: NO-22-010
Country: NORWAY
Nature of the harmful event:
 High Phyto concentration , Seafood toxins
Event directly affected:
 Shellfish
Toxicity detected: Yes (Approximate range: 4564-639 µg STX/kg)
Associated syndrome: PSP
Unexplained toxicity: No
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: Yes
Individuals to contact: Kleiven, Mona Ring

Location & Date

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Location: Latitude: 61.351389, Longitude: 5.349167
General location information: Bortheim, Fjaler, North Sea
HAB Area code(s): NO-09
Additional location information:
Bloom event dates (yyyy/mm/dd): Start: 2022-04-04, End: 2022-06-27
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Microalgae

Causative organism known: Yes
Causative Species/Genus: Alexandrium sp. (1240 cells/L)
week17
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: 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:
Growth Comments
Additional Environmental 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:
Created at 08:55 on 4 Jul 2022
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES