| Event name: | PT-88-006 | |
| Country: | PORTUGAL | |
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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 |
|
| 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. | ||||||
