General Information

Event name: NO-10-016
Country: NORWAY
Nature of the harmful event:
Seafood toxins
Event directly affected:
Shellfish
Toxicity detected: Yes (Approximate range: PSP: 28300-245 g STX/kg, DSP: 11496-60 g/kg, ASP: 987 g/kg, YTX: 3823-1143 g/kg)
Associated syndrome: ASP , DSP , OTHER , PSP
Unexplained toxicity: Yes (PSP, DSP and YTX at Rissa week 21 and 25, PSP and DSP at Rissa week 29)
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

Location & Date

[View larger map]
Location: Latitude: , Longitude:
General location information: Norwegian Sea, South,
HAB Area code(s): NO-06
Additional location information: Molde (W16-29, PSP), Frya (W23-35, PSP/ASP), Rissa (W17-33, PSP/DSP/YTX), Askerholmen (W17-40, PSP), Bjrga (W18-23), Namdal (W15-26, PSP), Brnny (W15-32, PSP), Kvlvgen (W19-21, PSP)
Bloom event dates (yyyy/mm/dd): Start: 2010-04-12, End: 2010-10-04
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Microalgae

Causative organism known: Yes
Causative Species/Genus: Alexandrium spp. (1240 cells/L)
Molde, W16
Co-Ocurring Species/Genus: Dinophysis acuminata (1840 cells/L)
Namdal, W16
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:
Surface
Subsurface
Growth:
Growth Comments Sampling aprox 0-3 meters
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Mytilus edulis Saxitoxins STX 28300g STX/kg Bioassay-Mouse
mytilus edulis Okadaic Acid OA 11496g/kg Bioassay-Mouse
mytilus edulis Bioassay-Mouse
mytilus edulis Yessotoxins YTX 3823g/kg Bioassay-Mouse
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 09:46 on 17 Feb 2015
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES