General Information

Event name: UY-92-002
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 Shellfish Toxicity)
Event occurred before in this location: No
Individuals to contact: MENDEZ, Silvia

Location & Date

[View larger map]
Location: Latitude: -34.650000, Longitude: -54.166667
General location information: La Paloma, Rocha
HAB Area code(s): UY-01
Additional location information: The bloom and toxicity extended to Rocha UY-01
Bloom event dates (yyyy/mm/dd): Event Date:1992-02-17
Start: 1992-02-06, End: 1992-03-15
Quarantine levels dates (yyyy/mm/dd): First detection: 1992-02-17, End: 1992-03-16
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Gymnodinium catenatum (146000 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: Méndez, S. y G. Ferrari. 2003. Floraciones tóxicas de Gymnodinium catenatum en aguas uruguayas. Publicaciones de la Comisión Técnica Mixta del Frente Marítimo, 19: 97-102.

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:
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: shellfish closure
Additional harmful effect information:
Created at 07:02 on 20 Dec 2013
Updated at 04:45 on 27 Sep 2017