Harmful Algal Information System: Event IE-98-001

General Information

Event name:	IE-98-001
Country:	IRELAND
Nature of the harmful event:	Seafood toxins
Event directly affected:
Toxicity detected:	No
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:	Yes
Individuals to contact:	CLARKE, Dave

Location & Date

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Location:	Latitude: , Longitude:
General location information:	Bruckless Bay and Dunmanus Bay., Donegal. HAB Area code(s): IE-04 IE-07
Additional location information:
Bloom event dates (yyyy/mm/dd):	Start: 1998-07-07, End: 1998-08-25
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Microalgae

Causative organism known:	Yes
Causative Species/Genus:	Dinophysis acuminata (4,000 cells/L) surface sample in Bruckless Bay, 7 July. Dinophysis acuta (1,200 cells/L) Dunmanus Bay, 25 August.
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known:	µg/l
Additional bloom information:	In 1998, D. acuta and D. acuminata were present only in very low numbers and both species, when present in a sample, were typically detected at levels in the range 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

Kit used:

Type of kit used:

Additional information:

Economic losses:

Management decision:

Each of the affected areas was closed for a period of 2 weeks

Additional harmful effect information:

A total of 967 shellfish samples were tested by DSP mouse biossay in 1998 and only 8 samples gave positive results. The very low level of toxicity recorded in 1998 was similar to thet recorded in 1996 and 1997.

Updated at 03:59 on 24 Apr 2018
Checked at 04:32 on 22 Apr 2013