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: Aerosolized toxins effects
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (0450 -ENVIRONMENTAL STUDY OF THE COASTAL MARINE ZONE ADJACENT TO THE CARENERO DISTRIBUTION PLANT)
Event occurred before in this location: Yes (In 2004, the Ministry of the Environment took samples of an event that occurred in the area.)
Individuals to contact: Lorelys Valerio

Location & Date

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Location: Latitude: 10.608889, Longitude: -66.172222
General location information: Chirimena, Estado Miranda y Vargas
HAB Area code(s): VE-03
Additional location information: This area has an average annual temperature of 26 C and an average rainfall of 99 mm. Chirimena beach It has a river mouth.
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: Eutreptiella gymnastica Throndsen 1969 (4.670 cells/L)
Co-Ocurring Species/Genus: Ostreopsis sp. (3.596 cells/L)
Chlorophyll concentration, if known: µg/l
Additional bloom information: Other species identified: Scrippsiella trochoidea with 1,588 cells / l, two species of the genus Navicula with 1,494 and 1,168 cells / l, Diploneis with 1,168 cells / l and a Thalassionema species with 981 cells / l.
Event-related bibliography: Environmental analysis of samples collected on the beach of the town of Chirimena during the intoxication event that occurred on August 29, 2010

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
Stratified water: Oxygen content (nL/L): 6.95 Wind velocity:
Temperature (°C): 30 Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: 40 Current Velocity:
Nutrient information: AMONIUM: 0,02 g/l
NITRATE: 2,2 g/L
NITRITE: 0,004 g/l
PHOSPHATE: 0,08 g/l.
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 07:22 on 3 Dec 2021
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES