Harmful Algal Information System: Event NO-10-020

General Information

Event name:	NO-10-020
Country:	NORWAY
Nature of the harmful event:	Seafood toxins
Event directly affected:	Shellfish
Toxicity detected:	Yes (Approximate range: PSP: 7972-398 µg STX/kg, DSP: 208-139 µg /kg)
Associated syndrome:	DSP , PSP
Unexplained toxicity:
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:	Latitude: , Longitude:
General location information:	Norwegian Sea, North, HAB Area code(s): NO-03
Additional location information:	Bodų (W25-33), Valvåg (W27-36), Kjempebakken (W25-39), Alta (W28-32)
Bloom event dates (yyyy/mm/dd):	Start: 2010-06-21, End: 2010-09-27
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Causative organism known:	Yes
Causative Species/Genus:	Alexandrium spp. (9840 cells/L) alta, w30
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known:	µg/l
Additional bloom information:
Event-related bibliography:

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:

Species containing the toxin	Toxin type	Toxin details	Max. concentration	Assay type
Mytilus edulis	Saxitoxins	STX	7972 µg STX/kg	Bioassay-Mouse
mytilus edulis	Okadaic Acid	OA	208 µg/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 10:42 on 17 Feb 2015