General Information

Event name: SE-88-001
Country: SWEDEN
Nature of the harmful event:
High Phyto concentration , Mass mortalities
Event directly affected:
Planktonic life , Natural Fish , Aquaculture Fish , Shellfish , Seaweed
Toxicity detected: No
Associated syndrome: OTHER
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: No
Event occurred before in this location: Yes (Probably normal component of the flora, but not reported as a bloom forming species)
Individuals to contact: EDLER, Lars , LINDAHL, Odd , SUNDSTRÍM, Bo

Location & Date

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Location: Latitude: , Longitude:
General location information: The Kattegat, the Skagerrak, the Íresund,
HAB Area code(s): SE-07 SE-08
Additional location information:
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: May to mid June


Causative organism known: Yes
Causative Species/Genus: Chrysochromulina polylepis (80 million cells/L)
Common concentraition c. 10 million 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: 15 °C, Min: 10 °C
Salinity Range During Event: Max: 30, Min: 8
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
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision: Transportation of fish cages into fjords, or river mouths in order to reach low saline water, where the causative organisms obviously did not have a toxic effect. Considerable monitoring in orther to know the distribution of the organisms.
Additional harmful effect information: Severe damage to marine life, including fish, mollusca, macro algae and probably zooplankton
Updated at 08:30 on 18 Mar 2020