General Information

Event name: UY-92-001
Country: URUGUAY
Nature of the harmful event:
High Phyto concentration , Seafood toxins
Event directly affected:
Shellfish , Humans
Toxicity detected: Yes
Associated syndrome: DSP
Unexplained toxicity:
Species implicated in toxin transmission (transvector): Mesodesma mactroides and Mytilus edulis
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

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Location: Latitude: -33.733056, Longitude: -53.350000
General location information: Coronilla, Rocha
HAB Area code(s): UY-01
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:1992-01-21
Quarantine levels dates (yyyy/mm/dd): First detection: 1992-01-21, End: 1992-02-07
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Dinophysis acuminata (4500 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: Méndez, S., A. Brazeiro, G. Ferrari, D. Medina y G. Inocente. 1993 . Mareas Rojas en el Uruguay. Programa de control y actualizacion de resultados. INAPE, Inf. Téc. N 46. 31p.

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: 22 °C, Min: °C
Salinity Range During Event: Max: 25.14,
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
Mesodesma mactroides and Mytilus edulis Okadaic Acid Bioassay-Mouse
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision: shellfish closure
Additional harmful effect information: First event of DSP in Uruguay
Created at 06:53 on 20 Dec 2013
Updated at 07:27 on 22 Mar 2018