General Information

Event name: ZAF-97-005
Country: SOUTH AFRICA
Nature of the harmful event:
Water Discoloration , High Phyto concentration , Mass mortalities
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:
Individuals to contact: MANSFIELD, Lisa , SCHWEIBOLD Laura

Location & Date

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Location: Latitude: -32.666667, Longitude: 18.216667
General location information: Dwarkersbos, West coast
HAB Area code(s): ZAF-01
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:1997-05-01
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Microalgae

Causative organism known: No
Causative Species/Genus:
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: Cockroft A.C. (2001). Jasus lalandii ‘walkouts’ or mass strandings in SouthAfrica during the 1990s: an overview. Mar. Freshwater Resources 52, 1085–1093.

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:

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: 30 t rock lobster walkout
Management decision:
Additional harmful effect information: 30 t rock lobster walkout
Created at 05:49 on 18 Dec 2019
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IOC/UNESCO ICES PICES