Harmful Algal Information System: Event SE-87-002

General Information

Event name:	SE-87-002
Country:	SWEDEN
Nature of the harmful event:	Seafood toxins
Event directly affected:
Toxicity detected:	Yes (Approximate range: > 40 µg OAeq / 100 g mussel meat.)
Associated syndrome:	DSP
Unexplained toxicity:	No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme:	Yes
Event occurred before in this location:	Yes (DSP every autumn since 1984.)
Individuals to contact:	EDLER, Lars , HAGELTORN, Matts , SUNDSTRÖM, Bo

Location & Date

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Location:	Latitude: , Longitude:
General location information:	Entire coast of Bohuslän., HAB Area code(s): SE-08
Additional location information:
Bloom event dates (yyyy/mm/dd):	Start: 1987-10-06,
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:	6 October - at least the end of November 1987.

Microalgae

Causative organism known:	No
Causative Species/Genus:	Dinophysis acuta ( cells/L) Not confirmed. Suspected.
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:	No	Oxygen content (nL/L):	Wind velocity:
Temperature (°C):		Oxygen saturation %:	Current Direction:
Sechhi disk (m):		Salinity:	Current Velocity:	0

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
Mussels meat	Okadaic Acid	OA eq	60 - 140	Bioassay-Mouse

Kit used:

Type of kit used:

Additional information:

Maximum values at different localities varied between 60 and 140 µg Okadaic acid equivalents/100 g mussel meat. In Gullmar fjord 340 µg Okadaic acid equivalents/100 g mussel meat was measured on October 22.

Economic losses:

Management decision:

Shellfish ban.

Additional harmful effect information:

Updated at 03:45 on 1 Mar 2018