General Information

Event name: AR-17-001
Nature of the harmful event:
Seafood toxins
Event directly affected:
Toxicity detected: Yes (Approximate range: 300 ug STX eq 100 g tissue-1)
Associated syndrome: PSP
Unexplained toxicity:
Species implicated in toxin transmission (transvector): Aulacomya ater
Report the outcome of a monitoring programme: Yes (Secretaría de Pesca y Acuicultura, Ushuaia, Pcia. Tierra del Fuego y SENASA Martinez, Bs As)
Event occurred before in this location: Yes
Individuals to contact: Hernando, Marcelo , Irene Schloss , Diego Luis Marzioni

Location & Date

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Location: Latitude: -54.864167, Longitude: -67.523889
General location information: Bahía Brown, Canal Beagle
HAB Area code(s): AR-35
Additional location information:
Bloom event dates (yyyy/mm/dd): Event Date:2017-01-15
Start: 2017-01-01, End: 2017-03-15
Quarantine levels dates (yyyy/mm/dd):
Additional date-related information:


Causative organism known: No
Causative Species/Genus: Alexandrium spp. ( cells/L)
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: Cadaillon A.M., Almandoz G.O, Hernando M., Saravia L., Maldonado S., Schloss I.R. Spatio-temporal distribution of paralytic shellfish poisoning (PSP) toxins in Beagle Channel (South America) during 2005-2017. Progress in Oceanography (2022) DOI:10.1016/j.pocean.2022.102757.

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
Alexandrium sp Saxitoxins Bioassay-Mouse
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information:
Created at 06:44 on 15 Sep 2022