General Information

Event name: AU-24-005
Country: AUSTRALIA
Nature of the harmful event:
Water Discoloration , High Phyto concentration
Event directly affected:
Humans
Toxicity detected: No
Associated syndrome:
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: No
Event occurred before in this location: Yes
Individuals to contact: Hallegraeff Gustaaf

Location & Date

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Location: Latitude: , Longitude:
General location information: Mackay, Great Barrier Reef
HAB Area code(s): AU-07
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:2024-09-30
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: lasting several weeks

Microalgae

Causative organism known: No
Causative Species/Genus: Trichodesmium erythraeum (Ehrenberg) Gomont 1892 ( cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: vivid green and pink slicks
Event-related bibliography: Cass Ramsay/Triple M Mackay & the Whitsundays/Facebook

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:
Growth Comments
Additional Environmental information: popular media expressed concern over the destruction of the Great Barrier Reef; yahoo!news by Brianne Tolj

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information:
Created at 06:35 on 22 Jan 2025
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES