Harmful Algal Information System: Event NL-92-024

General Information

Event name:	NL-92-024
Country:	NETHERLANDS
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:	JOORDENS, J. C. A.

Location:	Latitude: , Longitude:
General location information:	, WADDEN SEA. HAB Area code(s): NL-01
Additional location information:	Stations: W420, W590, W30 & E250.
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:	late March-October.

Causative organism known:	Yes
Causative Species/Genus:	Phaeocystis pouchetii (6,000 - 13 cells/L) E250 station from May till end September Phaeocystis pouchetii (50,000,000 cells/L) W30 station end of May Phaeocystis pouchetii (160,000 - cells/L) W30 Station from March till November Phaeocystis pouchetii (15,000,000 cells/L) W420 station in june Phaeocystis pouchetii (160,000 - cells/L) W420 station March-Ocyober Phaeocystis pouchetii (18,00,000 cells/L) E250 station end of May
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known:	µg/l
Additional bloom information:	The same pattern as in W420 station was encountered at W590 station though without the June bloom.
Event-related bibliography:	Koeman, R & M. Rademaker, 1993. Biomonitoring van fytoplankton in de Nederlandse zoute en brakke wateren 1992. TRIPOS Rijswijk/Haren (in Duth with English summary). Rademaker, M & R. Koeman, 1993. Determinatie fytoplankton in het Nederlandse deel van de Noordzee en het Kanaal, Project Algenbloei 1992. Report North Sea derectorate (In Dutch). Peperzak, L, 1994. Plaagalgen in de Noorszee. Report DGW-93.053, National Institute fos coastal and Marine Management/RIKZ, The Haghe (in Dutch).