General Information

Event name: VE-69-002
Country: VENEZUELA
Nature of the harmful event:
Water Discoloration
Event directly affected:
Toxicity detected: No
Associated syndrome:
Unexplained toxicity:
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: No
Event occurred before in this location:
Individuals to contact: VALERIO, Lorelys

Location & Date

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Location: Latitude: , Longitude:
General location information: ,
HAB Area code(s): VE-04
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:1969-05-30
Start: 1969-05-30, End: 1969-08-23
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Microalgae

Causative organism known: Yes
Causative Species/Genus: Skeletonema costatum ( cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: They also formed the cloudy Tallasionema nitzschioides, Corethron cryophylum, and Asterionella japonica.
Event-related bibliography: Masparrote S. 1969. Observaciones preliminares sobre la composición y aspectos del «turbio» o marea roja en las costas orientales de Venezuela. Mem. la Soc. Ciencias Nat. La Salle 1:37- 45.

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: °C, Min: °C
Salinity Range During Event:
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
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information:
Created at 09:18 on 6 Jun 2018
Updated at 03:27 on 4 Dec 2021
IOC/UNESCO ISSHA
IOC/UNESCO ICES PICES