General Information

Event name: AR-10-002
Nature of the harmful event:
Seafood toxins
Event directly affected:
Shellfish , Humans
Toxicity detected: Yes
Associated syndrome: DSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector): Donax hanleyanus
Report the outcome of a monitoring programme: Yes
Event occurred before in this location: No
Individuals to contact: Ins Sunesen

Location & Date

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Location: Latitude: -36.264167, Longitude: -56.960000
General location information: Villa Gesell and Mar Azul, AR-03
HAB Area code(s): AR-03
Additional location information: The closure covered the coast-line of the Buenos Aires Province.
Bloom event dates (yyyy/mm/dd): Event Date:2010-01-28
Start: 2010-01-04, End: 2011-07-13
Quarantine levels dates (yyyy/mm/dd): First detection: 2010-02-03, End: 2011-07-13
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Dinophysis caudata ( cells/L)
Dinophysis acuminata (4000 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: Sar et al. 2010, Sar et al. 2012, Sunesen et al. 2014

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
Stratified water: Oxygen content (nL/L): Wind velocity:
Temperature (°C): average in summer 20C Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: 33-34 Current Velocity:
Nutrient information:
Temperature Range During Event: Max: °C, Min: °C
Salinity Range During Event:
Bloom location in the water column: Whole column
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Mesodesma mactroides Okadaic Acid OA positive Bioassay-Mouse
Donax hanleyanus Okadaic Acid OA positive Bioassay-Mouse
Kit used: Type of kit used:
Additional information: Mousse bioassays for routine monitoring and analytical methods for specific shellfish samples
Economic losses:
Management decision: Closure from 2010-02-03 to 2011-07-13
Additional harmful effect information: 2 people intoxicated
Created at 11:50 on 25 Aug 2018
Updated at 09:42 on 13 Nov 2019