General Information

Event name: AU-97-001
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes
Associated syndrome: DSP
Unexplained toxicity:
Species implicated in toxin transmission (transvector): Pipis
Report the outcome of a monitoring programme: No
Event occurred before in this location: No
Individuals to contact: Hallegraeff Gustaaf

Location & Date

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Location: Latitude: -28.889167, Longitude: 153.571667
General location information: Ballina Beach, NSW
HAB Area code(s): AU-11
Additional location information:
Bloom event dates (yyyy/mm/dd): Start: 1997-12-15, End: 1998-01-30
Quarantine levels dates (yyyy/mm/dd): First detection: 1997-12-15, End: 1998-02-28
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Dinophysis tripos Gourret 1883 ( cells/L)
Dinophysis acuminata Claparède et Lachmann 1859 ( cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: V Burgess & G.Shaw. 2001. Environment International 27, 275-283.

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
Stratified water: Oxygen content (nL/L): Wind velocity:
Temperature (°C): 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
Dinophysis acuminata, Dinophysis tripos Pectenotoxins PTX2sa 300 ug/kg PTXeq. LC-MS
Dinophysis acuminata, Dinophysis tripos Okadaic Acid DTX3 LC-MS
Kit used: No Type of kit used:
Additional information:
Economic losses:
Management decision: Closure of wild Pipi harvesting (Donax deltoides). Instigation of plankton + toxin monitoring program
Additional harmful effect information: 56 hospitalisations
Created at 04:47 on 31 Jan 2017
Updated at 05:29 on 7 Mar 2017