Event name: | PT-88-006 | |
Country: | PORTUGAL | |
Nature of the harmful event: |
Water Discoloration | |
Event directly affected: |
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Toxicity detected: | No | |
Associated syndrome: | PSP | |
Unexplained toxicity: | ||
Species implicated in toxin transmission (transvector): | ||
Report the outcome of a monitoring programme: | No | |
Event occurred before in this location: | Yes (1987) | |
Individuals to contact: | FRAGA, Santiago , SAMPAYO, Mª Antonia , LIMA, Carmen |
Location: | Latitude: , Longitude: | |
General location information: |
Off Espinho and northern coast, HAB Area code(s): PT-01 |
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Additional location information: | Bivalve mollusc beds | |
Bloom event dates (yyyy/mm/dd): | Start: 1988-08-24, End: 1988-11-03 | |
Quarantine levels dates (yyyy/mm/dd): | ||
Additional date-related information: |
Causative organism known: | Yes | |
Causative Species/Genus: |
Gymnodinium catenatum
( cells/L)
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Co-Ocurring Species/Genus: |
Dinophysis acuta
( cells/L)
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Chlorophyll concentration, if known: | µg/l | |
Additional bloom information: | First occurrence Feb. 17: 100 cell/l; toxin detection none Max. 16000 cell/l on Oct. 20, being the dominant species in the sample followed by Dinophysis acuta (11500 cells/l). Other counts mostly in range 500-2000 cells/l | |
Event-related bibliography: |
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Nutrient information: | ||||||||||||||||||||||||||
Temperature Range During Event: | Max: 18 °C, Min: 13 °C | |||||||||||||||||||||||||
Salinity Range During Event: | Max: 35.5, Min: 20 | |||||||||||||||||||||||||
Bloom location in the water column: | ||||||||||||||||||||||||||
Growth: | ||||||||||||||||||||||||||
Growth Comments | ||||||||||||||||||||||||||
Additional Environmental information: | No other physical measurments taken Water colouration - no evident change |
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Kit used: | Type of kit used: | ||||||
Additional information: | |||||||
Economic losses: | |||||||
Management decision: | Harvesting of shellfish banned when toxin level upper than 80 µg/100 g | ||||||
Additional harmful effect information: | All bivalve molluscs affected (max. 173 µg/100g)No human illness reported. |