General Information

Event name: DE-98-004
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 (Baltic Sea monitoring; Mecklenburg-Vorpommern)
Event occurred before in this location: Yes (Regular occurrence, each year.)
Individuals to contact: SCHÖPPE, Christine

Location & Date

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Location: Latitude: , Longitude:
General location information: Coast of Mecklenburg-Vorpommern, Baltic Sea.
HAB Area code(s): DE-01
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:1998-05-26
Start: 1998-05-26,
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Cyanobacterial dominated the biomass of the phytoplankton during long periods from spring to autumm.


Causative organism known: Yes
Causative Species/Genus: Nodularia spumigena ( cells/L)
Microcystis aeruginosa ( cells/L)
Aphanizomenon flos-aquae (36,000,000 cells/L)
Planktothrix agaardii ( cells/L)
Aphanizomenon baltica ( cells/L)
Limnothrix redeckei ( cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: About 30,000,000 trichomes/L of about 100 µm length
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 Unknown
Additional Environmental information: Brackish water of the Baltic Sea

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision: none
Additional harmful effect information: Water discolouration; toxicity was not measured
Updated at 04:15 on 15 Apr 2015