General Information

Event name: SV-01-001
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: 134.7 to 1548.0 mouse units/100g)
Associated syndrome: PSP
Unexplained toxicity: Yes
Species implicated in toxin transmission (transvector): Modiolus sp., Anadara spp.
Report the outcome of a monitoring programme: No
Event occurred before in this location: Yes
Individuals to contact: AMAYA-MONTERROSA, Oscar , QUINTANILLA, Rebeca

Location & Date

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Location: Latitude: , Longitude:
General location information: La Libertad, La Libertad
HAB Area code(s): ELS-05
Additional location information: Most affected sites includes from Mizata Beach to Puerto de La Libertad
Bloom event dates (yyyy/mm/dd): Event Date:2001-08-30
Start: 2001-08-30, End: 2002-01-31
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: No
Causative Species/Genus:
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information: It was suggested that bloom was caused by a species of Gymnodinium
Event-related bibliography: Barraza, J.E., Armero-Guardado, J.A., Valencia de Toledo, Z.M., 2004. The red tide event in El Salvador, August 2001–January 2002. Rev. Biol. Trop. 52 (Suppl. 1), 1–4. Espinoza, J., Amaya, O., Quintanilla, R. 2013. Atlas de Fitoplancton Marino. 1st Ed. Universidad de El Salvador, San Salvador. 52 p

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 Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Modiolus sp. Bioassay-Mouse
Ostrea iridescens Bioassay-Mouse
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information: 41 persons were intoxicated
Created at 10:40 on 5 Jun 2018