General Information

Event name: MX-07-003
Country: MEXICO
Nature of the harmful event:
Other ( Isolated strains from HABs)
Event directly affected:
Toxicity detected: Yes
Associated syndrome: PSP
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: 24.449444, Longitude: -110.500000
General location information: Bahía de la Paz, Baja California Sur
HAB Area code(s): GC
Additional location information:
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Gymnodinium catenatum Graham 1943 ( cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: Bustillos-Guzmán, J. J., Band-Schmidt, C. J., Durán-Riveroll, L. M., Hernández-Sandoval, F. E., López-Cortés, D. J., Núñez-Vázquez, E. J., Cembella, A., Krock, B. 2015. Paralytic toxin profile of the marine dinoflagellate Gymnodinium catenatum Graham from the Mexican Pacific as revealed by LC-MS/MS. Food Additives & Contaminants: Part A. 32(3): 381-394.

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: Advected
Growth Comments
Additional Environmental information: GSe medium (Blackburn et al. 2001) with earthworm soil extract. 24-26 °C under 150 umol m-2s-2 illumination from cool white fluorescent lights on a 12:12 light:dark cycle in a controlled environment chamber.

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
C1/2 Saxitoxins C1 80.63 LC-MS
Saxitoxins dcSTX 3.60 LC-MS
B1 Saxitoxins 1.45 LC-MS
B2 Saxitoxins 0.30 LC-MS
Saxitoxins dcNEO 2.36 LC-MS
dcGTX1/4 Saxitoxins dcGTX1 3.59 LC-MS
C3/4 Saxitoxins C3 8.12 LC-MS
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information:
Created at 06:54 on 6 Feb 2018
Updated at 07:11 on 6 Feb 2018