General Information

Event name: DE-98-003
Country: GERMANY
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: 800 µg OA kg-1 (dw hepatopancreas).)
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 (Irregular, not each year.)
Individuals to contact: KASTRUP, Sebastian , ELBRÄCHTER, Malte

Location & Date

[View larger map]
Location: Latitude: , Longitude:
General location information: Wadden Sea, between the island Amrum and Sylt, German Bight.
HAB Area code(s): DE-03
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:1998-08-23
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Late August-Early September

Microalgae

Causative organism known: Yes
Causative Species/Genus: Dinophysis acuminata (1,000 cells/L)
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 Unknown.
Additional Environmental information: Wadden Sea of the North Frisian Coast.

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Blue mussels Okadaic Acid OA eq 800 µg/kg LC
Kit used: Type of kit used:
Additional information:
Economic losses: about 200,000 Euro.
Management decision: Stop of mussels harvesting for 3 weeks
Additional harmful effect information: Reference level for Germany: OA 400 µg/kg
Updated at 04:29 on 15 Apr 2015
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES