General Information

Event name: AU-17-002
Nature of the harmful event:
High Phyto concentration , Seafood toxins
Event directly affected:
Toxicity detected: Yes
Associated syndrome: PSP
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (Tasmanian Shellfish Quality Assurance Program)
Event occurred before in this location: Yes (recurrent since 2012)
Individuals to contact: Hallegraeff Gustaaf

Location & Date

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Location: Latitude: , Longitude:
General location information: Maria Island, Tasmania,
HAB Area code(s): AU-01
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:2017-07-10
Start: 2017-07-10, End: 2017-09-19
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: up to 140 mg/kg PST in Spring Bay mussels


Causative organism known: Yes
Causative Species/Genus: Alexandrium fundyense ( cells/L)
Co-Ocurring Species/Genus:
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): 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
Alexandrium fundyense Saxitoxins STX eq 140 mg/kg LC-FD
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision: closure of mussel, oyster, rock lobster industries, area sign posted with public warning signs (first in Australia)
Additional harmful effect information:
Created at 05:22 on 19 Sep 2017
Updated at 08:48 on 25 Oct 2017