General Information

Event name: UY-92-006
Country: URUGUAY
Nature of the harmful event:
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 Harmful Phytoplankton and Sheelfish Toxicity)
Event occurred before in this location: No
Individuals to contact: MENDEZ, Silvia

Location & Date

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Location: Latitude: -34.649722, Longitude: -54.166667
General location information: La Paloma, Rocha
HAB Area code(s): UY-01
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:1992-08-12
Start: 1992-08-12, End: 1992-08-12
Quarantine levels dates (yyyy/mm/dd): First detection: 1992-08-12, End: 1992-08-12
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Alexandrium tamarense (4800 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: Méndez, S., 1993. Uruguayan red tide monitoring programme: preliminary results (1990-1991). Toxic Phytoplankton Blooms in the sea. J.J.Smayda y Shimizu, eds.Elsevier Science Publishers, Amsterdam. p. 287-289.

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: 11.5 °C, Min: °C
Salinity Range During Event: Max: 15.2,
Bloom location in the water column:
Growth: Advected
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Mytlus edulis Saxitoxins Bioassay-Mouse
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision: shellfish closure
Additional harmful effect information:
Created at 03:02 on 27 Dec 2013
Updated at 05:52 on 22 Mar 2018