Harmful Algal Information System: Event DK-97-002

General Information

Event name:	DK-97-002
Country:	DENMARK
Nature of the harmful event:	Seafood toxins
Event directly affected:
Toxicity detected:	Yes
Associated syndrome:	DSP
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:	ANDERSEN, Per

Location & Date

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Location:	Latitude: , Longitude:
General location information:	Limfjorden - Skive Fjord DK-07, Northern Coast. HAB Area code(s): DK-04
Additional location information:
Bloom event dates (yyyy/mm/dd):	Start: 1997-05-01, End: 1997-06-30
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:	May-June

Microalgae

Causative organism known:	Yes
Causative Species/Genus:	Alexandrium minutum ( cells/L) Pseudo-nitzschia spp. ( cells/L) Alexandrium spp. ( cells/L) Dinophysis norvegica ( cells/L) Dinophysis acuminata ( 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:	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:

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:

Intensified monitoring and/or closing of shellfishery due to high concentrations of Dinophysis acuminata, Dinophysis norvegica, Alexandrium species and Pseudo-nitzschia-species were imposed at several occasions in areas at the east coast of Jutland, in th

Additional harmful effect information:

PSP was registered in oysters from the western part of the Limfjord in May. No other algal toxins were registered in shellfish in 1997 and there are no reports of human intoxications caused by consumption of Danish shellfish during 1997.

Updated at 05:24 on 8 Sep 2019