Harmful Algal Information System: Event FI-98-001

General Information

Event name:	FI-98-001
Country:	FINLAND
Nature of the harmful event:
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:	No
Individuals to contact:	SUIKKANEN, Sanna

Location & Date

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Location:	Latitude: , Longitude:
General location information:	Gulf of Finland, HAB Area code(s): FI-05
Additional location information:
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:	During summer

Microalgae

Causative organism known:	Yes
Causative Species/Genus:	Nodularia spumigena ( cells/L) Anabaena sp. ( cells/L) Aphanizomenon flos-aquae ( cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known:	µg/l
Additional bloom information:	Cyanobacterial filaments were present in low numbers in the surface layers throughout the summer.
Event-related bibliography:

Environmental Conditions

Weather:	Summer 1998 was exceptionally cold and windy in the Northern Europe and Baltic sea.	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:

PHOSPHATE: 0.1 �M

Temperature Range During Event:

Max: °C, Min: °C

Salinity Range During Event:

Bloom location in the water column:

Growth:

Growth Comments

Additional Environmental information:

Relatively high concentrations of PO4 compared to the situation in early 1990s were measured in July-August. However, blooms of cyanobacteria did not develop due to the low water temperature compared to long term means and strong mixing.

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:

Updated at 12:37 on 5 Nov 2019