Harmful Algal Information System: Event EE-98-001

General Information

Event name:	EE-98-001
Country:	ESTONIA
Nature of the harmful event:	High Phyto concentration
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 Monitoring Programme and the National Monitoring Programme.)
Event occurred before in this location:	No
Individuals to contact:	JAANUS, Andres

Location:	Latitude: , Longitude:
General location information:	Gulf of Finland., HAB Area code(s): EE-02
Additional location information:	H. triquetra became dominant in the middle July. In Finnish coastal waters, Heterocapsa-blom was observed until the end of August, while in Estonian coastal areas and the western Gulf the short-time maximum was recorded in the end of July/beginning of August (cf. Annex). However, the dinoflagellate H. triquetra disappeared eastward of 25º 30’ E in the southern Gulf of Finland, i.e. by salinity < 5 psu.
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:	Mid-July.

Causative organism known:	Yes
Causative Species/Genus:	Heterocapsa triquetra ( cells/L) Dominant in Mid-July.
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known:	µg/l
Additional bloom information:	In Finnish coastal waters, H. triquetra -bloom was observed until the end of august, while in Estonian coastal areas and the Western Gulf the short-time maximum was recorded in the end of July/beginning of august. However, H. triquetra disspeared eastward
Event-related bibliography: