General Information

Event name: CL-96-001
Country: CHILE
Nature of the harmful event:
High Phyto concentration , Seafood toxins
Event directly affected:
Shellfish , Humans
Toxicity detected: Yes (Approximate range: 107,129 ug STXeq. 100g-1)
Associated syndrome: PSP
Unexplained toxicity:
Species implicated in toxin transmission (transvector): Mitylus chilensis
Report the outcome of a monitoring programme: No
Event occurred before in this location: No
Individuals to contact: Jorge I. Mardones

Location & Date

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Location: Latitude: , Longitude:
General location information: Southern AysÚn, AysÚn
HAB Area code(s): CL-06
Additional location information: This bloom started the detection of A. catenella in this region.
Bloom event dates (yyyy/mm/dd): Event Date:1996-01-15
Start: 1996-01-15,
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Alexandrium catenella (31000 cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: Molinet et al., 2003. Spatial and temporal distribution patterns of blooms of Alexandrium catenella on inland seas of northwest Patagonia, Chile. RChHN 76:681-698

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
Mitylus chilensis Saxitoxins 107,129 Bioassay-Mouse
Kit used: Type of kit used:
Additional information: One of the highest toxin concentrations ever detected in this region.
Economic losses:
Management decision:
Additional harmful effect information: 2 fatalities and 21 intonxicated
Created at 02:41 on 15 Nov 2017
Updated at 10:56 on 14 Nov 2019