General Information

Event name: MX-01-002
Country: MEXICO
Nature of the harmful event:
Other ( Isolated strains from HABs)
Event directly affected:
Natural Fish , Shellfish
Toxicity detected: Yes
Associated syndrome: PSP
Unexplained toxicity: No
Species implicated in toxin transmission (transvector): Argopecten ventricosus
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: 26.585833, Longitude: -111.736111
General location information: Bahía Concepción, Baja California Sur
HAB Area code(s): GC
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:2001-05-31
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: Band-Schmidt, C. J., Bustillos-Guzmán, J., Gárate-Lizárraga, I., Lechuga-Devéze, C. H., Reinhardt, K., Luckas, B. 2005. Paralytic shellfish toxin profile in strains of the dinoflagellate Gymnodinium catenatum Graham and the scallop Argopecten ventricosus G.B. Sowerby II from Bahía Concepción, Gulf of California, México. Harmful Algae. 4: 21-31.

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: f/2 medium, 20°C, 12h:12h light/dark and 150 uE m-2s-1 light intensity. Harvested at 17 and 22 days after inoculation.

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
17 days Saxitoxins 25.7 pg STXeq/cell LC
22 days Saxitoxins 27.9 LC
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information:
Created at 08:41 on 22 Feb 2018