General Information

Event name: SV-17-002
Nature of the harmful event:
Mass mortalities
Event directly affected:
Toxicity detected: Yes
Associated syndrome: PSP
Unexplained toxicity: Yes (Saxitoxins were found in sea turtles tissues, however no harmful algal bloom was detected)
Species implicated in toxin transmission (transvector):
Report the outcome of a monitoring programme: Yes (National Monitoring Programme of the Marine Environment)
Event occurred before in this location: Yes (Similar mass mortality of sea turtles occurred in 2013 along the coast of El Salvador)
Individuals to contact: RUIZ-RODRIGUEZ, Gerardo , AMAYA-MONTERROSA, Oscar , QUINTANILLA, Rebeca

Location & Date

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Location: Latitude: 13.039167, Longitude: -88.439444
General location information: Bahía de Jiquilisco, Usulután
HAB Area code(s): ELS-04
Additional location information: Around 200 sea turtles were found dead floating approximately 15km offshore the coast of Bahía de Jiqulisco. Around 100 sea turtles stranded later in different places of the coast of El Salvador
Bloom event dates (yyyy/mm/dd): Event Date:2017-11-03
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: Saxitoxins were found in sea turtles tissues, however no harmful algal bloom was detected in the area
Event-related bibliography:

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
Chelonia mydas Saxitoxins STX eq 1264.16 STX eq µg/kg Receptor Binding
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information: Around 300 turtles were found dead
Created at 05:41 on 22 Jan 2018