General Information

Event name: DE-01-002
Country: GERMANY
Nature of the harmful event:
Water Discoloration
Event directly affected:
Toxicity detected: No
Associated syndrome:
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (Early algal detection system of Schleswig-Holstein.)
Event occurred before in this location: Yes
Individuals to contact: GÖBEL, Jeanette

Location & Date

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Location: Latitude: 54.183833, Longitude: 7.900000
General location information: Between Helgland island and western Meldorf B, Coastalwaters of Schleswig Holstein.
HAB Area code(s): DE-03
Additional location information: Coastal waters, aerial coverage of bloom: from west to east: 07°45´00 E to 08°40´00 E, from north to south: 54°15´00 N to 54°06´00 N.
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Strong discolouration around the island of Herlgoland, duration: mid to end of June, first week of July, end: around 10th of July, water temperature: 15,1°C.


Causative organism known: Yes
Causative Species/Genus: Mesodinium rubrum (161,000 cells/L)
Ciliate. 04.07.2001, Helgoland Reede Station, see coordinates under "location (2)", counted by Dr. Hagmeier, AWI Bremerhaven.
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: Autotrophic ciliate.
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: Advected
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Kit used: No Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information: