General Information

Event name: SE-18-005
Country: SWEDEN
Nature of the harmful event:
Water Discoloration , High Phyto concentration
Event directly affected:
Toxicity detected: No
Associated syndrome: Cyanobacterial toxins effects
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (SMHI Baltic Algae Watch System - satellite observations of cyanobacteria surface accumulations)
Event occurred before in this location: Yes (in 2006 the last time)
Individuals to contact: KARLSON, Bengt , ÖBERG, Jörgen

Location & Date

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Location: Latitude: , Longitude:
General location information: Kattegat,
HAB Area code(s): SE-07
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:2018-07-31
Start: 2018-07-31, End: 2018-07-31
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: Detailed information not available


Causative organism known: Yes
Causative Species/Genus: Nodularia spp. ( cells/L)
Aphanizomenon spp. ( 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: Oxygen content (nL/L): Wind velocity:
Temperature (°C): Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: Current Velocity:
Nutrient information:
Temperature Range During Event: Max: °C, Min: °C
Salinity Range During Event:
Bloom location in the water column:
Growth: Advected
Growth Comments The cyanobacteria observed in the Kattegat are likely to have been advected from the Baltic Proper
Additional Environmental information:

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:
Additional harmful effect information:
Created at 01:16 on 1 Apr 2019
Updated at 05:46 on 15 Dec 2019