General Information

Event name: CL-02-002
Country: CHILE
Nature of the harmful event:
Seafood toxins
Event directly affected:
Humans
Toxicity detected: Yes (Approximate range: 8575 mg of STX equivalent by 100 g of shellfish meat)
Associated syndrome: PSP
Unexplained toxicity:
Species implicated in toxin transmission (transvector): Aulacomya ater
Report the outcome of a monitoring programme: No
Event occurred before in this location: Yes (since 1908)
Individuals to contact: SCHWEIBOLD Laura

Location & Date

[View larger map]
Location: Latitude: -51.250000, Longitude: -75.083056
General location information: Augusta Island, San Blas Channel
HAB Area code(s): CL-14
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:2002-07-05
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:

Microalgae

Causative organism known: Yes
Causative Species/Genus: Alexandrium catenella ( cells/L)
is suspected but no identification were done
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: García, C., Bravo, M.C., Lagos, M., Lagos, N. (2004). Paralytic shellfish poisoning: post-mortem analysis of tissue and body fluid samples from human victims in the Patagonian fjords. Toxicon 43: 149-158.

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:
Growth Comments
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Alexandrium catenella Saxitoxins STX 8575 m.units/100g Bioassay-Mouse
Kit used: Type of kit used:
Additional information: Toxin assays have been done on several fluids and body parts of human victims (details in bibliography)
Economic losses:
Management decision: filter-feeder bivalves harvesting was officially prohibit in area since 1994
Additional harmful effect information: 2 fishermen died within a few hours
Created at 11:43 on 19 Nov 2019
Updated at 11:56 on 19 Nov 2019