General Information

Event name: AU-15-001
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: 15 mg/kg)
Associated syndrome: PSP
Unexplained toxicity:
Species implicated in toxin transmission (transvector): shellfish
Report the outcome of a monitoring programme: Yes (Tasmanian Shellfish Quality Assurance Program)
Event occurred before in this location: Yes (2012)
Individuals to contact: Hallegraeff Gustaaf

Location & Date

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Location: Latitude: -42.671944, Longitude: 148.092778
General location information: Maria Island, Tasmania
HAB Area code(s): AU-01
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:2015-06-29
Start: 2015-06-29, End: 2015-10-15
Quarantine levels dates (yyyy/mm/dd): First detection: 2015-06-29, End: 2015-10-15
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Alexandrium fundyense (300 000 /L cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: Hallegraeff et al. 2017 ICHA 17th Proceedings

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 15 mg/kg LC-FD
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision: Closure of mussel, oyster, rock lobster industries.
Additional harmful effect information: 4 human hospitalisations after consumption of mussels containing 35 mg/kg
Created at 04:45 on 30 Jan 2017
Updated at 02:40 on 26 Sep 2017