General Information

Event name: SE-00-001
Country: SWEDEN
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: 100-1400 µg OA eq / g)
Associated syndrome: DSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (Water Quality Association of the Bonus Coast, monitoring of toxins in blue mussels)
Event occurred before in this location: Yes (Yes, more or less annually since 1984.)
Individuals to contact: KARLSON, Bengt

Location & Date

[View larger map]
Location: Latitude: , Longitude:
General location information: Bohus Coast., Skagerrak coast of Sweden.
HAB Area code(s): SE-08
Additional location information: ICES fishing area: III a.
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Initial date: July 2000. High toxin concentrations were still present 31 Dec. 2000. The similar harmful algal event in 1999 reported by Odd Lindahl continued from July 1999 to March 2000.


Causative organism known: Yes
Causative Species/Genus: Dinophysis acuta (6,000 cells/L)
Toxins in plankton not reported Also D. norwegica (max 7 000) and D. acuminata occurred.
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
Mytilus edulis (blue mussel) Okadaic Acid OA eq 1400 LC
Kit used: Type of kit used:
Additional information:
Economic losses: Not calculated. Harvest of mussels delayed until toxicity declined.
Management decision: Public and media information. Harvesting of mussels banned.
Additional harmful effect information: For toxin analitical details contact: Ann-Sofi Rehnstam Holm, Dept.of Clinical Bacteriology at the Medical faculty, Göteborg University, Guldhedsgatan 10 A, 413 46 Göteborg, Sweden,
Updated at 04:50 on 1 Mar 2018