General Information

Event name: MX-07-001
Country: MEXICO
Nature of the harmful event:
Water Discoloration , High Phyto concentration
Event directly affected:
Planktonic life , Natural Fish
Toxicity detected: No
Associated syndrome:
Unexplained toxicity: No
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: No
Event occurred before in this location:
Individuals to contact: Rosalba Alonso Rodriguez

Location & Date

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Location: Latitude: 19.189167, Longitude: -96.122778
General location information: , Veracruz
HAB Area code(s): GM
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:2007-05-25
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Peridinium sp. (1.81 x 10^4 cells/L)
P. quadridentatum
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: Okolodkov, Y. B., Campos-Bautista, G., Gárate-Lizárraga, I. 2016. Circadian rhytm of a red-tide dinoflagellate Peridinium quadridentatum in the port of Veracruz, Gulf of Mexico, its thecal morphology, nomenclature and geographical distribution. Marine Pollution Bulletin. 108: 289-296

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
Stratified water: Oxygen content (nL/L): 3.48 - 7.01 Wind velocity:
Temperature (°C): 25°C Oxygen saturation %: Current Direction:
Sechhi disk (m): 1.5 - 3.5 Salinity: Current Velocity:
Nutrient information: NITRATE: 0.8 - 1.81 mgL-1
NITRITE: 6 - 16 ugL-1
Temperature Range During Event: Max: 27.8 °C, Min: 15.7 °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
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information:
Created at 07:07 on 3 Feb 2018
Updated at 12:42 on 6 Feb 2018