General Information

Event name: AU-87-001
Nature of the harmful event:
High Phyto concentration , Other ( Bitter tasting mussels)
Event directly affected:
Shellfish , Humans
Toxicity detected: No
Associated syndrome: OTHER
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
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: -38.129722, Longitude: 144.881389
General location information: Port Phillip Bay, Victoria
HAB Area code(s): AU-12
Additional location information:
Bloom event dates (yyyy/mm/dd): Start: 1987-02-01, End: 1987-09-29
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: No
Causative Species/Genus: Rhizosolenia sp. (360 000 cells/L)
Rhizosolenia amaralis (reported as R. chunii)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: Parry G. D. et al, 1989. Toxic effects of a bloom of the diatom R. chunii on shellfish in Port Phillip Bay, south eastern Australia. Mar. Biol. 102: 25-41

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
Kit used: No Type of kit used:
Additional information:
Economic losses: 1.5M AUD lost
Management decision: Closure of mussel industries for up to 7 months
Additional harmful effect information: repeat events in 1993 and 1994
Created at 05:02 on 31 Jan 2017
Updated at 07:53 on 10 Feb 2017