General Information

Event name: MX-10-001
Country: MEXICO
Nature of the harmful event:
Seafood toxins
Event directly affected:
Natural Fish
Toxicity detected: Yes (Approximate range: 0-3846 micrograms per kilogram)
Associated syndrome: PSP
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: Rosalba Alonso Rodriguez

Location & Date

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Location: Latitude: 15.949167, Longitude: -95.578056
General location information: Santiago Astata, Tehuantepec
HAB Area code(s): GT
Additional location information:
Bloom event dates (yyyy/mm/dd):
Quarantine levels dates (yyyy/mm/dd): First detection: 2010-06-01,
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Pyrodinium bahamense var. compressum (32500 cells/L)
Co-Ocurring Species/Genus: Gymnodinium catenatum (4000 cells/L)
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: Alonso-Rodríguez, R., Mendoza-Amézquita, E., Velásquez-López, S.A., Seim J.A., Martínez-Rodríguez, V.M. 2015. Florecimientos algales nocivos producidos por Pyrodinium bahamense en Oaxaca, México (2009-2010) Salud Pública de México 57(4): 343-351.

Environmental Conditions

Weather: Turbidity (NTU): Wind direction:
Stratified water: Oxygen content (nL/L): 6-8 Wind velocity:
Temperature (°C): 27.4-31.3 Oxygen saturation %: Current Direction:
Sechhi disk (m): Salinity: 31-34 Current Velocity:
Nutrient information:
Temperature Range During Event: Max: °C, Min: °C
Salinity Range During Event:
Bloom location in the water column:
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Striostrea prismatica Saxitoxins STX eq 3846 microgram kg Other Chem. Analyt.
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information:
Created at 05:43 on 29 Oct 2015
Updated at 12:41 on 25 Nov 2015