General Information

Event name: UY-91-001
Country: URUGUAY
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 (National Monitoring Program on HAB and Shellfis toxicity)
Event occurred before in this location: Yes (11 years before)
Individuals to contact: MENDEZ, Silvia

Location & Date

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Location: Latitude: -34.866667, Longitude: -55.266667
General location information: Piriapolis, Maldonado
HAB Area code(s): UY-02
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:1991-02-06
Start: 1991-02-06, End: 1991-03-15
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information: toxicity was <80ug STX eq/100g


Causative organism known: Yes
Causative Species/Genus: Gymnodinium catenatum (77000 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: 25 °C, Min: 22 °C
Salinity Range During Event: Max: 28.3, Min: 19
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
Mytilus edulis Saxitoxins STX eq Bioassay-Mouse
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information:
Created at 06:01 on 20 Dec 2013
Updated at 04:50 on 27 Sep 2017