| Event name: | FR-97-002 | |
| Country: | FRANCE | |
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Nature of the harmful event: |
Seafood toxins | |
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Event directly affected: |
Shellfish | |
| Toxicity detected: | Yes | |
| Associated syndrome: | PSP | |
| Unexplained toxicity: | No | |
| Species implicated in toxin transmission (transvector): | ||
| Report the outcome of a monitoring programme: | Yes | |
| Event occurred before in this location: | Yes | |
| Individuals to contact: | SCHWEIBOLD Laura | |
| Location: | Latitude: , Longitude: | |
| General location information: |
, Northern Brittany. AND ATLANTIC COAST HAB Area code(s): FR-06 |
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| Additional location information: | Morlaix Bay (Northern Brittany) is affected every year by blooms of this species. What is new is that Alexandrium minutum may be observed now in other areas of Northern Brittany, in rather important concentrations (x100,000 cells/L), but without PSP toxicity until now. The presence of Alexandrium minutum was also observed along the Atlantic coast, between the rivers Loire and Gironde. These concentrations are the most important ever observed in this region. No PSP toxicity was detected in shellfish. All these events show that Alexandrium minutum is becoming the main problem of the French phytoplankton Monitoring. | |
| Bloom event dates (yyyy/mm/dd): | ||
| Quarantine levels dates (yyyy/mm/dd): | ||
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| Causative organism known: | Yes | |
| Causative Species/Genus: |
Alexandrium minutum
(10 - 20,00 cells/L)
between river Loire and Gironde in the Atlantic Alexandrium minutum (100,000 cells/L) Morlaix Bay |
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| Co-Ocurring Species/Genus: | ||
| Chlorophyll concentration, if known: | µg/l | |
| Additional bloom information: | The results of two campaigns, the first one a few years ago, and the second one last year, show that Alexandrium minutum cysts can be observed now in the sediment of these new areas. So it is obvious that there is a slowly extension of Alexandrium minutum | |
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| Additional harmful effect information: | PSP detected in Morlaix Bay. However no toxicity was detected in Norther Brittany and Atlantic coast. | ||||||
