Harmful Algal Information System: Event IE-95-001

General Information

Event name:	IE-95-001
Country:	IRELAND
Nature of the harmful event:	Seafood toxins
Event directly affected:
Toxicity detected:	Yes (Approximate range: Positive to DSP.)
Associated syndrome:	AZP
Unexplained toxicity:	Yes
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme:	Yes
Event occurred before in this location:	No
Individuals to contact:	CLARKE, Dave

Location & Date

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Location:	Latitude: , Longitude:
General location information:	Killary Habour., West coast. HAB Area code(s): IE-06
Additional location information:
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:	November 95 to June 96.

Microalgae

Causative organism known:	No
Causative Species/Genus:
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known:	µg/l
Additional bloom information:	No known toxic phytoplankton species were associated with this event.
Event-related bibliography:	This was the AZP event which led to human illness in the Netherlands after consumption of mussels

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
Mussels	Okadaic Acid		Positive	Bioassay-Mouse
Mussels	Okadaic Acid		Positive	Bioassay-Rat

Kit used:

Type of kit used:

Additional information:

An unkwonm toxin was recorded in samples of mussels from Killary Harbour. This toxin gave DSP like syptoms and gave strongly positive (+++) results in Rat bioassays. Mouse Bioassay gave mouse death times of approximately 90 minutes. The toxicity has persisted for 5 month and was later attributed to Azaspiracid

Economic losses:

Management decision:

Harvesting of all shellfish from Killary Harbour was prohibited from November 1995 through to June 1996.

Additional harmful effect information:

As reported last year, unexplained toxicity was detected in mussels from Killary Harbour. Toxicity, as measured by both DSP rat and mouse bioassays, persisted from November 1995 through to June 1996. Toxin later identified as Azaspiracid

Updated at 05:00 on 22 Jun 2020
Checked at 04:32 on 22 Apr 2013