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.


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 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