Harmful Algal Information System: Event IE-96-002

General Information

Event name:	IE-96-002
Country:	IRELAND
Nature of the harmful event:
Event directly affected:
Toxicity detected:	Yes (Approximate range: Positive mouse bioassay.)
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:	CLARKE, Dave

Location & Date

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Location:	Latitude: , Longitude:
General location information:	Bantry Bay., Cork. HAB Area code(s): IE-04
Additional location information:
Bloom event dates (yyyy/mm/dd):	Event Date:1996-08-28 Start: 1996-08-28,
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Microalgae

Causative organism known:	Yes
Causative Species/Genus:	Dinophysis acuta (1,160 cells/L) highest concentration
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known:	µg/l
Additional bloom information:	The 1996 results were notable for the very low numbers of D. acuminata and D. acuta present in the samples compared with previous years. Both species were typically detected at levels in the range of 40-200 cells/L
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
Mussel	Okadaic Acid		Positive	Bioassay-Mouse

Kit used:

Type of kit used:

Additional information:

In the south and southwest positive bioassays results were only obtained on one occasion in early September in mussel samples from inner Bantry Bay, Kenmare Bay and Cork Harbour.

Economic losses:

Management decision:

Harvesting of shellfish from these locations was prohibited for a period of 2 weeks.

Additional harmful effect information:

No positive results were obtained from the other shellfish growing areas. This contrasts markedly with typical closure periods of shellfish production areas of 8 - 10 weeks in other years and is in marked contrast to the closure period enforced in the sou

Updated at 04:11 on 24 Apr 2018
Checked at 04:32 on 22 Apr 2013