General Information

Event name: NO-07-001
Country: NORWAY
Nature of the harmful event:
Seafood toxins
Event directly affected:
Shellfish
Toxicity detected: Yes (Approximate range: DSP: 421µg/kg,PSP:2052-193µg STX/kg)
Associated syndrome: DSP , 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:
Individuals to contact: Kleiven, Mona Ring

Location & Date

[View larger map]
Location: Latitude: , Longitude:
General location information: Skagerak,
HAB Area code(s): NO-12
Additional location information: Larvik, Kragerø, Risør/Tvedestrand, Arendal, Kr.sand, Flekkefjord
Bloom event dates (yyyy/mm/dd): Start: 2007-03-05, End: 2007-07-02
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Microalgae

Causative organism known: Yes
Causative Species/Genus: Dinophysis acuminata (1200 cells/L)
Saltneven,W20
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
Mytilus edulis Okadaic Acid OA 421µg/kg Bioassay-Mouse
mytilus edulis Saxitoxins STX 2052µgSTX/ Bioassay-Mouse
Kit used: Type of kit used:
Additional information: DSP max: Larvik, week 10, PSP max: Risør/Tvedestrand week 16.
Economic losses:
Management decision: Harvesting was locally banned. The public was warned against picking toxic mussels.
Additional harmful effect information:
Created at 08:13 on 22 Jan 2015
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES