General Information

Event name: UY-22-001
Country: URUGUAY
Nature of the harmful event:
High Phyto concentration , Seafood toxins
Event directly affected:
Humans
Toxicity detected: Yes
Associated syndrome: DSP
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (HAB monitoring programme)
Event occurred before in this location: Yes (frequently)
Individuals to contact: MARTINEZ, Ana

Location & Date

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Location: Latitude: , Longitude:
General location information: Uruguay, Maldonado y Rocha
HAB Area code(s): UY-01 UY-02
Additional location information: Piriápolis, Punta del Este y Arachania
Bloom event dates (yyyy/mm/dd): Event Date:2022-05-12
Start: 2022-05-02, End: 2022-06-13
Quarantine levels dates (yyyy/mm/dd): End: 2022-07-27
Additional date-related information: Rocha ban until July 27 and Mald August 5

Microalgae

Causative organism known: Yes
Causative Species/Genus: Dinophysis spp. (140792 cells/L)
Co-Ocurring Species/Genus: Akashiwo sanguinea (Hirasaka) Hansen et Moestrup 2000 (3841780 cells/L)
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): 16.3 Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: 18.9 Current Velocity:
Nutrient information:
Temperature Range During Event: Max: 20.3 °C, Min: 13 °C
Salinity Range During Event: Max: 28.6, Min: 14.9
Bloom location in the water column:
Growth:
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Donax hanleyanus Okadaic Acid Bioassay-Mouse
Mitylus edulis Okadaic Acid Bioassay-Mouse
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision: establishment of harvesting ban
Additional harmful effect information:
Created at 02:24 on 19 Jul 2022
Updated at 06:50 on 3 Feb 2023
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES