General Information

Event name: UY-93-002
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 Shellfsh Toxicity)
Event occurred before in this location: Yes (1992)
Individuals to contact: MENDEZ, Silvia

Location & Date

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Location: Latitude: -34.600000, Longitude: -54.150000
General location information: Arachania, Rocha
HAB Area code(s): UY-01
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:1993-03-12
Start: 1993-01-08, End: 1993-04-27
Quarantine levels dates (yyyy/mm/dd): First detection: 1993-03-12, End: 1993-04-13
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Gymnodinium catenatum (30400 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: Méndez, S. y Ferrari, G. 2002. Floraciones algales nocivas en Uruguay: antecedentes, proyectos en curso y revisión de resultados. En: Floraciones algales nocivas en el cono sur americano. Eds: E.A. Sar, M. E. Ferrario y B. Reguera. Pub Especial del Instituto español de Oceanografía.p. 269-289.

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: 26 °C, Min: 18 °C
Salinity Range During Event: Max: 32.4, Min: 16
Bloom location in the water column:
In situ
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Donax hanleyanus Saxitoxins Bioassay-Mouse
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision: Closure of bivalve molluscs
Additional harmful effect information:
Created at 03:37 on 27 Dec 2013
Updated at 04:34 on 27 Sep 2017