General Information

Event name: CR-89-001
Nature of the harmful event:
Event directly affected:
Toxicity detected: Yes (Approximate range: Data not indicated in the paper)
Associated syndrome: PSP
Unexplained toxicity:
Species implicated in toxin transmission (transvector): Spondylus calcifer (oyster)
Report the outcome of a monitoring programme: No
Event occurred before in this location: No
Individuals to contact: VARGAS MONTERO MARIBELLE

Location & Date

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Location: Latitude: , Longitude: -84.664444
General location information: Tárcoles, Gulf of Nicoya
HAB Area code(s): CR-1
Additional location information: Red tide observed fron superface to 5 meters depth
Bloom event dates (yyyy/mm/dd): Event Date:1989-10-01
End: 1990-04-01
Quarantine levels dates (yyyy/mm/dd): First detection: 1989-10-10, End: 1989-10-10
Additional date-related information:


Causative organism known: Yes
Causative Species/Genus: Pyrodinium bahamense ( cells/L)
Was detected in the oyster not in water samples
Co-Ocurring Species/Genus:
Chlorophyll concentration, if known: µg/l
Additional bloom information:
Event-related bibliography: Mata, L., Abarca, G., Marranghello, L. & Víquez, R. 1990. Intoxicación paralítica por mariscos (IPM) por Spondylus calcifer contaminado con Pyrodinium bahamense, Costa Rica 1989-1990. Rev. Biol. Trop. 38(1):129-136.

Environmental Conditions

Weather: Dry season Turbidity (NTU): Wind direction:
Stratified water: Yes 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 Not bloom was colected
Additional Environmental information:

Toxin Assay Information

Species containing the toxin Toxin type Toxin details Max. concentration Assay type
Spondylus calcifer Saxitoxins Bioassay-Mouse
Kit used: Type of kit used:
Additional information:
Economic losses:
Management decision:
Additional harmful effect information: 14 human poisoning in october 1989, 6 cases in february 1990, one person died in april 1990
Created at 04:57 on 28 Oct 2015