General Information

Event name: IE-88-001
Country: IRELAND
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes
Associated syndrome: DSP
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: No
Event occurred before in this location: Yes (1984 and 1987 - November)
Individuals to contact: CLARKE, Dave

Location & Date

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Location: Latitude: , Longitude:
General location information: Roaringwater,Bay, Dunmanus Bay, Bantry Bay, Kenmare, South west coast of Ireland
HAB Area code(s): IE-04
Additional location information:
Bloom event dates (yyyy/mm/dd): Start: 1988-06-06, End: 1988-11-08
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Dinophysis acuta Ehrenberg 1841 (240 cells/L)
Dinophysis acuminata Claparède et Lachmann 1859 (1500 cells/L)
Co-Ocurring Species/Genus: Gonyaulax triacantha ( cells/L)
Ceratium fusus (Ehrenberg) Dujardin 1841 ( cells/L)
Prorocentrum micans Ehrenberg 1833 ( cells/L)
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography:

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
Stratified water: Oxygen content (nL/L): Wind velocity:
Temperature (°C): 12.5 Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: Current Velocity:
Nutrient information:
Temperature Range During Event: Max: °C, Min: °C
Salinity Range During Event:
Bloom location in the water column:
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
mussels Okadaic Acid DTX1 25 LC
mussels Okadaic Acid OA eq 201 LC
Kit used: Type of kit used:
Additional information: DSP in mussels on suspended rope culture at all depths. Maximum toxicity Rat bioassay (+++) Mouse bioassay (+++). Okadaic acid (max 201 ug/100g total mussel meat) in all samples tested. DTX1 (max 25ug/100g total mussel meat) in four of the samples detected by M. Hageltorn, Sweden using HPLC.
Economic losses:
Management decision: No human illness due to early detection. Early onset and protracted closures caused trade disruption. Fortunately most areas cleared before significant losses of stock.
Additional harmful effect information: Onset of toxicity about six weeks earlier than in previous years. Distribution and toxin levels very similar to 1987 event.
Updated at 04:22 on 24 Apr 2018
Checked at 04:31 on 22 Apr 2013