General Information

Event name: VE-10-001
Country: VENEZUELA
Nature of the harmful event:
Water Discoloration
Event directly affected:
Humans
Toxicity detected: No
Associated syndrome:
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (0450 - ESTUDIO AMBIENTAL DE LA ZONA MARINO COSTERA ADYACENTE A LA PLANTA DE DISTRIBUCIÓN CARENERO)
Event occurred before in this location: Yes (En el año 2004, el Ministerio del Ambiente tomó muestras de un evento ocurrido en la zona.)
Individuals to contact: Lorelys Valerio

Location & Date

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Location: Latitude: , Longitude:
General location information: Chirimena, Estado Miranda y Vargas
HAB Area code(s): VE-03
Additional location information: Esta zona presenta una temperatura media anual de 26 °C y una precipitación media de 99 mm, con dos máximos en los meses de junio y diciembre. La playa de Chirimena es una mesoplaya con formación de dunas.Presenta una desembocadura de río.
Bloom event dates (yyyy/mm/dd): Event Date:2010-08-29
Start: 2010-08-29, End: 2010-08-30
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Microalgae

Causative organism known: Yes
Causative Species/Genus: Ostreopsis spp. (3.596 células/litro cells/L)
Co-Ocurring Species/Genus: Eutreptiella sp. (4.670 células/ml cells/L)
Chlorophyll concentration, if known: µg/l
Additional bloom information: Se encontró con menores abundancias otros dinoflagelados tóxicos de los géneros: Prorocentrum, Dynophysis, Ceratium, Alexandrium y Gambierdiscus y diatomeas de los géneros: Diploneis, Amphora, Navicula, Nitzschia, Thalassionema y Coscinodiscus.
Event-related bibliography: Pereira, C.; Hernández, V., Peña, C., García, V., Angulo, B. y Losada, R. 2011. Análisis ambiental de muestras captadas en playa Chirimena durante el evento de intoxicación ocurrido el 29 de agosto de 2010. Informe técnico de PDVSA Intevep N° INT-13680,2011,21.

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
Stratified water: Oxygen content (nL/L): 6.95 Wind velocity:
Temperature (°C): 31 Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: 38.5 Current Velocity:
Nutrient information: AMONIUM: 0 y 0,02 µg/l
NITRATE: 1,3 y 2,2 µg/L
NITRITE: 0,005 y 0,004 µg/l
PHOSPHATE: 0,06 y 0,08 µg/l.
NITRATE + NITRITE: 1,305 y 2,204
Temperature Range During Event: Max: 32 °C, Min: 30 °C
Salinity Range During Event: Max: 40, Min: 37
Bloom location in the water column:
Surface
Growth:
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information:
Created at 08:39 on 28 Oct 2015
Updated at 04:50 on 29 Oct 2015
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES