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General Information

Event name: NO-24-021
Country: NORWAY
Nature of the harmful event:
 High Phyto concentration
Event directly affected:
Toxicity detected: No
Associated syndrome:
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
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: 59.076944, Longitude: 10.869444
General location information: Utgårdskilen, Hvaler, Skagerrak
HAB Area code(s): NO-14
Additional location information:
Bloom event dates (yyyy/mm/dd): Start: 2024-04-29, End: 2024-06-17
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Microalgae

Causative organism known: Yes
Causative Species/Genus: Alexandrium spp. (360 cells/L)
week 24
Co-Ocurring Species/Genus: Dinophysis norvegica (4600 cells/L)
week 18
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 08:09 on 26 Jun 2024
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES