General Information

Event name: NO-87-003
Country: NORWAY
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
Event occurred before in this location: Yes (The occurrence was very similar to the year 1986.)
Individuals to contact: DAHL, Einar

Location & Date

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Location: Latitude: , Longitude:
General location information: , SOUTHERN AND WESTERN COAST.
HAB Area code(s): NO-06 NO-07 NO-08 NO-09 NO-10 NO-11
Additional location information: A large scale phenomenon.
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: September - October.


Causative organism known: Yes
Causative Species/Genus: Polykrikos sp. ( cells/L)
Polykrikos cf schwartzii / kofoidii.
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: Advected
Growth Comments Advocated and concentrated by hydrographical processes.
Additional Environmental information: No data.

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: The results from the algae monitoring programme were transmitted through MARINET, a computer based information system owned by the fish farmers central administration.
Additional harmful effect information:
Updated at 03:30 on 2 Dec 2019